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 (20230125 | Detects win.icefog.)
rule win_icefog_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2023-01-25"
        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 = "20230124"
        malpedia_hash = "2ee0eebba83dce3d019a90519f2f972c0fcf9686"
        malpedia_version = "20230125"
        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 = { 8b45ac 3b8574ffffff 0f8dcb000000 8b4485dc 8b55a4 8bc8 898570ffffff }
            // n = 7, score = 200
            //   8b45ac               | mov                 eax, dword ptr [ebp - 0x54]
            //   3b8574ffffff         | cmp                 eax, dword ptr [ebp - 0x8c]
            //   0f8dcb000000         | jge                 0xd1
            //   8b4485dc             | mov                 eax, dword ptr [ebp + eax*4 - 0x24]
            //   8b55a4               | mov                 edx, dword ptr [ebp - 0x5c]
            //   8bc8                 | mov                 ecx, eax
            //   898570ffffff         | mov                 dword ptr [ebp - 0x90], eax

        $sequence_1 = { 898df0feffff c785f4feffff00000000 7527 85db 740f 68???????? e8???????? }
            // n = 7, score = 200
            //   898df0feffff         | mov                 dword ptr [ebp - 0x110], ecx
            //   c785f4feffff00000000     | mov    dword ptr [ebp - 0x10c], 0
            //   7527                 | jne                 0x29
            //   85db                 | test                ebx, ebx
            //   740f                 | je                  0x11
            //   68????????           |                     
            //   e8????????           |                     

        $sequence_2 = { 818d40ffffff00000002 8b8d10ffffff dd4110 dd8538ffffff d8d1 dfe0 ddd9 }
            // n = 7, score = 200
            //   818d40ffffff00000002     | or    dword ptr [ebp - 0xc0], 0x2000000
            //   8b8d10ffffff         | mov                 ecx, dword ptr [ebp - 0xf0]
            //   dd4110               | fld                 qword ptr [ecx + 0x10]
            //   dd8538ffffff         | fld                 qword ptr [ebp - 0xc8]
            //   d8d1                 | fcom                st(1)
            //   dfe0                 | fnstsw              ax
            //   ddd9                 | fstp                st(1)

        $sequence_3 = { 8b45a4 8b4848 8b4648 51 6a05 8bca e8???????? }
            // n = 7, score = 200
            //   8b45a4               | mov                 eax, dword ptr [ebp - 0x5c]
            //   8b4848               | mov                 ecx, dword ptr [eax + 0x48]
            //   8b4648               | mov                 eax, dword ptr [esi + 0x48]
            //   51                   | push                ecx
            //   6a05                 | push                5
            //   8bca                 | mov                 ecx, edx
            //   e8????????           |                     

        $sequence_4 = { 1bd3 eb5f 53 51 52 50 e8???????? }
            // n = 7, score = 200
            //   1bd3                 | sbb                 edx, ebx
            //   eb5f                 | jmp                 0x61
            //   53                   | push                ebx
            //   51                   | push                ecx
            //   52                   | push                edx
            //   50                   | push                eax
            //   e8????????           |                     

        $sequence_5 = { 8bd8 83c408 3bde 0f84dc0a0000 8b4b48 8b17 51 }
            // n = 7, score = 200
            //   8bd8                 | mov                 ebx, eax
            //   83c408               | add                 esp, 8
            //   3bde                 | cmp                 ebx, esi
            //   0f84dc0a0000         | je                  0xae2
            //   8b4b48               | mov                 ecx, dword ptr [ebx + 0x48]
            //   8b17                 | mov                 edx, dword ptr [edi]
            //   51                   | push                ecx

        $sequence_6 = { 51 52 8d5ea4 8d4694 53 50 57 }
            // n = 7, score = 200
            //   51                   | push                ecx
            //   52                   | push                edx
            //   8d5ea4               | lea                 ebx, [esi - 0x5c]
            //   8d4694               | lea                 eax, [esi - 0x6c]
            //   53                   | push                ebx
            //   50                   | push                eax
            //   57                   | push                edi

        $sequence_7 = { e8???????? 83c40c 8d8dd0fdffff 51 56 c785d0fdffff2c020000 ff15???????? }
            // n = 7, score = 200
            //   e8????????           |                     
            //   83c40c               | add                 esp, 0xc
            //   8d8dd0fdffff         | lea                 ecx, [ebp - 0x230]
            //   51                   | push                ecx
            //   56                   | push                esi
            //   c785d0fdffff2c020000     | mov    dword ptr [ebp - 0x230], 0x22c
            //   ff15????????         |                     

        $sequence_8 = { 8be5 5d c3 6a09 8d55dc 68???????? 52 }
            // n = 7, score = 200
            //   8be5                 | mov                 esp, ebp
            //   5d                   | pop                 ebp
            //   c3                   | ret                 
            //   6a09                 | push                9
            //   8d55dc               | lea                 edx, [ebp - 0x24]
            //   68????????           |                     
            //   52                   | push                edx

        $sequence_9 = { 8945e0 8955e8 8b55fc 8d4638 8d3cbf 8945ec 8d049500000000 }
            // n = 7, score = 200
            //   8945e0               | mov                 dword ptr [ebp - 0x20], eax
            //   8955e8               | mov                 dword ptr [ebp - 0x18], edx
            //   8b55fc               | mov                 edx, dword ptr [ebp - 4]
            //   8d4638               | lea                 eax, [esi + 0x38]
            //   8d3cbf               | lea                 edi, [edi + edi*4]
            //   8945ec               | mov                 dword ptr [ebp - 0x14], eax
            //   8d049500000000       | lea                 eax, [edx*4]

    condition:
        7 of them and filesize < 1187840
}
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