SYMBOLCOMMON_NAMEaka. SYNONYMS
win.chches (Back to overview)

ChChes

aka: HAYMAKER, Ham Backdoor

Actor(s): Stone Panda


There is no description at this point.

References
2020SecureworksSecureWorks
@online{secureworks:2020:bronze:66f1290, author = {SecureWorks}, title = {{BRONZE RIVERSIDE}}, date = {2020}, organization = {Secureworks}, url = {https://www.secureworks.com/research/threat-profiles/bronze-riverside}, language = {English}, urldate = {2020-05-23} } BRONZE RIVERSIDE
Anel ChChes Cobalt Strike PlugX Poison Ivy Quasar RAT RedLeaves Stone Panda
2017-04PricewaterhouseCoopersPricewaterhouseCoopers
@techreport{pricewaterhousecoopers:201704:operation:cb50712, author = {PricewaterhouseCoopers}, title = {{Operation Cloud Hopper: Technical Annex}}, date = {2017-04}, institution = {PricewaterhouseCoopers}, url = {https://www.pwc.co.uk/cyber-security/pdf/cloud-hopper-annex-b-final.pdf}, language = {English}, urldate = {2019-10-15} } Operation Cloud Hopper: Technical Annex
ChChes PlugX Quasar RAT RedLeaves Trochilus RAT
2017-02-27Threat VectorJon Gross
@online{gross:20170227:deception:c424a01, author = {Jon Gross}, title = {{The Deception Project: A New Japanese-Centric Threat}}, date = {2017-02-27}, organization = {Threat Vector}, url = {https://www.cylance.com/en_us/blog/the-deception-project-a-new-japanese-centric-threat.html}, language = {English}, urldate = {2020-01-05} } The Deception Project: A New Japanese-Centric Threat
ChChes Snake Wine
2017-02-16Palo Alto Networks Unit 42Jen Miller-Osborn, Josh Grunzweig
@online{millerosborn:20170216:menupass:a829340, author = {Jen Miller-Osborn and Josh Grunzweig}, title = {{menuPass Returns with New Malware and New Attacks Against Japanese Academics and Organizations}}, date = {2017-02-16}, organization = {Palo Alto Networks Unit 42}, url = {http://researchcenter.paloaltonetworks.com/2017/02/unit42-menupass-returns-new-malware-new-attacks-japanese-academics-organizations/}, language = {English}, urldate = {2019-12-20} } menuPass Returns with New Malware and New Attacks Against Japanese Academics and Organizations
ChChes
2017-02-10JPCERT/CCShusei Tomonaga
@online{tomonaga:20170210:powersploit:8c4789a, author = {Shusei Tomonaga}, title = {{PowerSploit}}, date = {2017-02-10}, organization = {JPCERT/CC}, url = {https://www.jpcert.or.jp/magazine/acreport-ChChes_ps1.html}, language = {Japanese}, urldate = {2020-01-09} } PowerSploit
ChChes
2017-01-26JPCERT/CCYu Nakamura
@online{nakamura:20170126:malware:273897c, author = {Yu Nakamura}, title = {{Malware ChChes interacts with C & C server using Cookie header}}, date = {2017-01-26}, organization = {JPCERT/CC}, url = {https://www.jpcert.or.jp/magazine/acreport-ChChes.html}, language = {Japanese}, urldate = {2019-07-09} } Malware ChChes interacts with C & C server using Cookie header
ChChes Snake Wine
Yara Rules
[TLP:WHITE] win_chches_auto (20210616 | Detects win.chches.)
rule win_chches_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-06-10"
        version = "1"
        description = "Detects win.chches."
        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.chches"
        malpedia_rule_date = "20210604"
        malpedia_hash = "be09d5d71e77373c0f538068be31a2ad4c69cfbd"
        malpedia_version = "20210616"
        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 = { 57 8bf0 e8???????? 8bf8 81c71d051101 8b07 0598000000 }
            // n = 7, score = 200
            //   57                   | push                edi
            //   8bf0                 | mov                 esi, eax
            //   e8????????           |                     
            //   8bf8                 | mov                 edi, eax
            //   81c71d051101         | add                 edi, 0x111051d
            //   8b07                 | mov                 eax, dword ptr [edi]
            //   0598000000           | add                 eax, 0x98

        $sequence_1 = { 6a08 ffd1 8b5648 50 ffd2 85c0 7403 }
            // n = 7, score = 200
            //   6a08                 | push                8
            //   ffd1                 | call                ecx
            //   8b5648               | mov                 edx, dword ptr [esi + 0x48]
            //   50                   | push                eax
            //   ffd2                 | call                edx
            //   85c0                 | test                eax, eax
            //   7403                 | je                  5

        $sequence_2 = { 8b470c 3bc3 740f 8b96b4010000 8d4de0 51 50 }
            // n = 7, score = 200
            //   8b470c               | mov                 eax, dword ptr [edi + 0xc]
            //   3bc3                 | cmp                 eax, ebx
            //   740f                 | je                  0x11
            //   8b96b4010000         | mov                 edx, dword ptr [esi + 0x1b4]
            //   8d4de0               | lea                 ecx, dword ptr [ebp - 0x20]
            //   51                   | push                ecx
            //   50                   | push                eax

        $sequence_3 = { 8b45f0 50 6a00 6a00 ffd1 8b45bc 894588 }
            // n = 7, score = 200
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   50                   | push                eax
            //   6a00                 | push                0
            //   6a00                 | push                0
            //   ffd1                 | call                ecx
            //   8b45bc               | mov                 eax, dword ptr [ebp - 0x44]
            //   894588               | mov                 dword ptr [ebp - 0x78], eax

        $sequence_4 = { 7422 50 8b4664 ffd0 8b4b08 8b5114 8b8ea8010000 }
            // n = 7, score = 200
            //   7422                 | je                  0x24
            //   50                   | push                eax
            //   8b4664               | mov                 eax, dword ptr [esi + 0x64]
            //   ffd0                 | call                eax
            //   8b4b08               | mov                 ecx, dword ptr [ebx + 8]
            //   8b5114               | mov                 edx, dword ptr [ecx + 0x14]
            //   8b8ea8010000         | mov                 ecx, dword ptr [esi + 0x1a8]

        $sequence_5 = { 8b4490fc 8b4010 85c0 7469 3901 7461 }
            // n = 6, score = 200
            //   8b4490fc             | mov                 eax, dword ptr [eax + edx*4 - 4]
            //   8b4010               | mov                 eax, dword ptr [eax + 0x10]
            //   85c0                 | test                eax, eax
            //   7469                 | je                  0x6b
            //   3901                 | cmp                 dword ptr [ecx], eax
            //   7461                 | je                  0x63

        $sequence_6 = { 8d4b01 8945fc 394df0 7327 51 85ff 750f }
            // n = 7, score = 200
            //   8d4b01               | lea                 ecx, dword ptr [ebx + 1]
            //   8945fc               | mov                 dword ptr [ebp - 4], eax
            //   394df0               | cmp                 dword ptr [ebp - 0x10], ecx
            //   7327                 | jae                 0x29
            //   51                   | push                ecx
            //   85ff                 | test                edi, edi
            //   750f                 | jne                 0x11

        $sequence_7 = { 85c0 7416 50 8b4644 6a00 ffd0 }
            // n = 6, score = 200
            //   85c0                 | test                eax, eax
            //   7416                 | je                  0x18
            //   50                   | push                eax
            //   8b4644               | mov                 eax, dword ptr [esi + 0x44]
            //   6a00                 | push                0
            //   ffd0                 | call                eax

        $sequence_8 = { 8be5 5d c3 3b448afc 0f845cfaffff 33db }
            // n = 6, score = 200
            //   8be5                 | mov                 esp, ebp
            //   5d                   | pop                 ebp
            //   c3                   | ret                 
            //   3b448afc             | cmp                 eax, dword ptr [edx + ecx*4 - 4]
            //   0f845cfaffff         | je                  0xfffffa62
            //   33db                 | xor                 ebx, ebx

        $sequence_9 = { ffd1 8b17 c7421000000000 8b542414 8b0f }
            // n = 5, score = 200
            //   ffd1                 | call                ecx
            //   8b17                 | mov                 edx, dword ptr [edi]
            //   c7421000000000       | mov                 dword ptr [edx + 0x10], 0
            //   8b542414             | mov                 edx, dword ptr [esp + 0x14]
            //   8b0f                 | mov                 ecx, dword ptr [edi]

    condition:
        7 of them and filesize < 122880
}
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