SYMBOLCOMMON_NAMEaka. SYNONYMS
win.icefog (Back to overview)

Icefog

aka: Fucobha

There is no description at this point.

References
2021-06-16Recorded FutureInsikt Group®
@techreport{group:20210616:threat:d585785, author = {Insikt Group®}, title = {{Threat Activity Group RedFoxtrot Linked to China’s PLA Unit 69010; Targets Bordering Asian Countries}}, date = {2021-06-16}, institution = {Recorded Future}, url = {https://go.recordedfuture.com/hubfs/reports/cta-2021-0616.pdf}, language = {English}, urldate = {2022-07-29} } Threat Activity Group RedFoxtrot Linked to China’s PLA Unit 69010; Targets Bordering Asian Countries
Icefog PcShare PlugX Poison Ivy QuickHeal DAGGER PANDA
2021-02-28Recorded FutureInsikt Group®
@techreport{group:20210228:chinalinked:2fb1230, author = {Insikt Group®}, title = {{China-Linked Group RedEcho Targets the Indian Power Sector Amid Heightened Border Tensions}}, date = {2021-02-28}, institution = {Recorded Future}, url = {https://go.recordedfuture.com/hubfs/reports/cta-2021-0228.pdf}, language = {English}, urldate = {2021-03-04} } China-Linked Group RedEcho Targets the Indian Power Sector Amid Heightened Border Tensions
Icefog PlugX ShadowPad
2020-01-29nao_sec blognao_sec
@online{naosec:20200129:overhead:ec0aeb5, author = {nao_sec}, title = {{An Overhead View of the Royal Road}}, date = {2020-01-29}, organization = {nao_sec blog}, url = {https://nao-sec.org/2020/01/an-overhead-view-of-the-royal-road.html}, language = {English}, urldate = {2020-02-03} } An Overhead View of the Royal Road
BLACKCOFFEE Cotx RAT Datper DDKONG Derusbi Icefog Korlia NewCore RAT PLAINTEE Poison Ivy Sisfader
2019-12-12FireEyeChi-en Shen, Oleg Bondarenko
@online{shen:20191212:cyber:e01baca, author = {Chi-en Shen and Oleg Bondarenko}, title = {{Cyber Threat Landscape in Japan – Revealing Threat in the Shadow}}, date = {2019-12-12}, organization = {FireEye}, url = {https://www.slideshare.net/codeblue_jp/cb19-cyber-threat-landscape-in-japan-revealing-threat-in-the-shadow-by-chi-en-shen-ashley-oleg-bondarenko}, language = {English}, urldate = {2020-04-16} } Cyber Threat Landscape in Japan – Revealing Threat in the Shadow
Cerberus TSCookie Cobalt Strike Dtrack Emotet Formbook IcedID Icefog IRONHALO Loki Password Stealer (PWS) PandaBanker PLEAD poisonplug TrickBot BlackTech
2019-06-03FireEyeChi-en Shen
@online{shen:20190603:into:d40fee9, author = {Chi-en Shen}, title = {{Into the Fog - The Return of ICEFOG APT}}, date = {2019-06-03}, organization = {FireEye}, url = {https://speakerdeck.com/ashley920/into-the-fog-the-return-of-icefog-apt}, language = {English}, urldate = {2020-06-30} } Into the Fog - The Return of ICEFOG APT
Icefog PlugX Sarhust
2016-09-06KZ CERTKZ CERT
@online{cert:20160906:kzcert:3d8bb82, author = {KZ CERT}, title = {{KZ-CERT has analyzed another sample of malicious software, which is a component of targeted attacks (Targeted attacks, Advanced Persistent Threats (APT))}}, date = {2016-09-06}, organization = {KZ CERT}, url = {http://www.kz-cert.kz/page/502}, language = {Kazakh}, urldate = {2019-10-16} } KZ-CERT has analyzed another sample of malicious software, which is a component of targeted attacks (Targeted attacks, Advanced Persistent Threats (APT))
Icefog
Yara Rules
[TLP:WHITE] win_icefog_auto (20220808 | Detects win.icefog.)
rule win_icefog_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2022-08-05"
        version = "1"
        description = "Detects win.icefog."
        info = "autogenerated rule brought to you by yara-signator"
        tool = "yara-signator v0.6.0"
        signator_config = "callsandjumps;datarefs;binvalue"
        malpedia_reference = "https://malpedia.caad.fkie.fraunhofer.de/details/win.icefog"
        malpedia_rule_date = "20220805"
        malpedia_hash = "6ec06c64bcfdbeda64eff021c766b4ce34542b71"
        malpedia_version = "20220808"
        malpedia_license = "CC BY-SA 4.0"
        malpedia_sharing = "TLP:WHITE"

    /* DISCLAIMER
     * The strings used in this rule have been automatically selected from the
     * disassembly of memory dumps and unpacked files, using YARA-Signator.
     * The code and documentation is published here:
     * https://github.com/fxb-cocacoding/yara-signator
     * As Malpedia is used as data source, please note that for a given
     * number of families, only single samples are documented.
     * This likely impacts the degree of generalization these rules will offer.
     * Take the described generation method also into consideration when you
     * apply the rules in your use cases and assign them confidence levels.
     */


    strings:
        $sequence_0 = { e8???????? 8bf8 8b45f0 50 e8???????? 40 99 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   8bf8                 | mov                 edi, eax
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   50                   | push                eax
            //   e8????????           |                     
            //   40                   | inc                 eax
            //   99                   | cdq                 

        $sequence_1 = { 899d74feffff e9???????? 8b8588feffff 8b8d6cfeffff 8b510c 83c004 898588feffff }
            // n = 7, score = 200
            //   899d74feffff         | mov                 dword ptr [ebp - 0x18c], ebx
            //   e9????????           |                     
            //   8b8588feffff         | mov                 eax, dword ptr [ebp - 0x178]
            //   8b8d6cfeffff         | mov                 ecx, dword ptr [ebp - 0x194]
            //   8b510c               | mov                 edx, dword ptr [ecx + 0xc]
            //   83c004               | add                 eax, 4
            //   898588feffff         | mov                 dword ptr [ebp - 0x178], eax

        $sequence_2 = { 5d c3 8b4d08 57 68???????? 51 e8???????? }
            // n = 7, score = 200
            //   5d                   | pop                 ebp
            //   c3                   | ret                 
            //   8b4d08               | mov                 ecx, dword ptr [ebp + 8]
            //   57                   | push                edi
            //   68????????           |                     
            //   51                   | push                ecx
            //   e8????????           |                     

        $sequence_3 = { 8bd9 8b03 8955f4 8b560c 33c9 8945b0 8b471c }
            // n = 7, score = 200
            //   8bd9                 | mov                 ebx, ecx
            //   8b03                 | mov                 eax, dword ptr [ebx]
            //   8955f4               | mov                 dword ptr [ebp - 0xc], edx
            //   8b560c               | mov                 edx, dword ptr [esi + 0xc]
            //   33c9                 | xor                 ecx, ecx
            //   8945b0               | mov                 dword ptr [ebp - 0x50], eax
            //   8b471c               | mov                 eax, dword ptr [edi + 0x1c]

        $sequence_4 = { e8???????? 2b8688000000 8b8ecc000000 1b968c000000 52 8b97a4000000 50 }
            // n = 7, score = 200
            //   e8????????           |                     
            //   2b8688000000         | sub                 eax, dword ptr [esi + 0x88]
            //   8b8ecc000000         | mov                 ecx, dword ptr [esi + 0xcc]
            //   1b968c000000         | sbb                 edx, dword ptr [esi + 0x8c]
            //   52                   | push                edx
            //   8b97a4000000         | mov                 edx, dword ptr [edi + 0xa4]
            //   50                   | push                eax

        $sequence_5 = { 8bcb 83d100 51 50 8b45fc 52 e8???????? }
            // n = 7, score = 200
            //   8bcb                 | mov                 ecx, ebx
            //   83d100               | adc                 ecx, 0
            //   51                   | push                ecx
            //   50                   | push                eax
            //   8b45fc               | mov                 eax, dword ptr [ebp - 4]
            //   52                   | push                edx
            //   e8????????           |                     

        $sequence_6 = { 8d043e 0f95c1 8945e4 8d543106 3b55ec 7f1a 8d5106 }
            // n = 7, score = 200
            //   8d043e               | lea                 eax, [esi + edi]
            //   0f95c1               | setne               cl
            //   8945e4               | mov                 dword ptr [ebp - 0x1c], eax
            //   8d543106             | lea                 edx, [ecx + esi + 6]
            //   3b55ec               | cmp                 edx, dword ptr [ebp - 0x14]
            //   7f1a                 | jg                  0x1c
            //   8d5106               | lea                 edx, [ecx + 6]

        $sequence_7 = { 8b561c 52 57 e8???????? 8b460c 50 57 }
            // n = 7, score = 200
            //   8b561c               | mov                 edx, dword ptr [esi + 0x1c]
            //   52                   | push                edx
            //   57                   | push                edi
            //   e8????????           |                     
            //   8b460c               | mov                 eax, dword ptr [esi + 0xc]
            //   50                   | push                eax
            //   57                   | push                edi

        $sequence_8 = { 8b06 85c0 745c 8b9df0feffff 8b0b 8d957cfeffff 52 }
            // n = 7, score = 200
            //   8b06                 | mov                 eax, dword ptr [esi]
            //   85c0                 | test                eax, eax
            //   745c                 | je                  0x5e
            //   8b9df0feffff         | mov                 ebx, dword ptr [ebp - 0x110]
            //   8b0b                 | mov                 ecx, dword ptr [ebx]
            //   8d957cfeffff         | lea                 edx, [ebp - 0x184]
            //   52                   | push                edx

        $sequence_9 = { 8b5d08 8b9320010000 33c9 56 57 8955fc 33ff }
            // n = 7, score = 200
            //   8b5d08               | mov                 ebx, dword ptr [ebp + 8]
            //   8b9320010000         | mov                 edx, dword ptr [ebx + 0x120]
            //   33c9                 | xor                 ecx, ecx
            //   56                   | push                esi
            //   57                   | push                edi
            //   8955fc               | mov                 dword ptr [ebp - 4], edx
            //   33ff                 | xor                 edi, edi

    condition:
        7 of them and filesize < 1187840
}
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