SYMBOLCOMMON_NAMEaka. SYNONYMS
win.hermes_ransom (Back to overview)

Hermes Ransomware

URLhaus    

There is no description at this point.

References
2021-08-05KrebsOnSecurityBrian Krebs
@online{krebs:20210805:ransomware:0962b82, author = {Brian Krebs}, title = {{Ransomware Gangs and the Name Game Distraction}}, date = {2021-08-05}, organization = {KrebsOnSecurity}, url = {https://krebsonsecurity.com/2021/08/ransomware-gangs-and-the-name-game-distraction/}, language = {English}, urldate = {2021-08-06} } Ransomware Gangs and the Name Game Distraction
DarkSide RansomEXX Babuk Cerber Conti DarkSide DoppelPaymer Egregor FriedEx Gandcrab Hermes Ransomware Maze RansomEXX REvil Ryuk Sekhmet
2020-11-21vxhive blog0xastrovax
@online{0xastrovax:20201121:deep:89c1a51, author = {0xastrovax}, title = {{Deep Dive Into HERMES Ransomware}}, date = {2020-11-21}, organization = {vxhive blog}, url = {https://vxhive.blogspot.com/2020/11/deep-dive-into-hermes-ransomware.html}, language = {English}, urldate = {2021-05-11} } Deep Dive Into HERMES Ransomware
Hermes Ransomware
2019-03-18DCSODCSO
@online{dcso:20190318:enterprise:ff92a62, author = {DCSO}, title = {{Enterprise Malware-as-a-Service: Lazarus Group and the Evolution of Ransomware}}, date = {2019-03-18}, organization = {DCSO}, url = {https://dcso.de/2019/03/18/enterprise-malware-as-a-service}, language = {English}, urldate = {2021-02-06} } Enterprise Malware-as-a-Service: Lazarus Group and the Evolution of Ransomware
Hermes Ransomware
2018-11-17Youtube (Demonslay335)Michael Gillespie
@online{gillespie:20181117:analyzing:ecd5641, author = {Michael Gillespie}, title = {{Analyzing Ransomware - Beginner Static Analysis}}, date = {2018-11-17}, organization = {Youtube (Demonslay335)}, url = {https://www.youtube.com/watch?v=9nuo-AGg4p4}, language = {English}, urldate = {2020-02-27} } Analyzing Ransomware - Beginner Static Analysis
Hermes Ransomware
2018-07-30ProofpointProofpoint Staff
@online{staff:20180730:new:07c5e76, author = {Proofpoint Staff}, title = {{New version of AZORult stealer improves loading features, spreads alongside ransomware in new campaign}}, date = {2018-07-30}, organization = {Proofpoint}, url = {https://www.proofpoint.com/us/threat-insight/post/new-version-azorult-stealer-improves-loading-features-spreads-alongside}, language = {English}, urldate = {2019-12-20} } New version of AZORult stealer improves loading features, spreads alongside ransomware in new campaign
Azorult Hermes Hermes Ransomware
Yara Rules
[TLP:WHITE] win_hermes_ransom_auto (20211008 | Detects win.hermes_ransom.)
rule win_hermes_ransom_auto {

    meta:
        author = "Felix Bilstein - yara-signator at cocacoding dot com"
        date = "2021-10-07"
        version = "1"
        description = "Detects win.hermes_ransom."
        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.hermes_ransom"
        malpedia_rule_date = "20211007"
        malpedia_hash = "e5b790e0f888f252d49063a1251ca60ec2832535"
        malpedia_version = "20211008"
        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 = { 59 59 8945e0 837ddc00 7506 837de000 7405 }
            // n = 7, score = 100
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx
            //   8945e0               | mov                 dword ptr [ebp - 0x20], eax
            //   837ddc00             | cmp                 dword ptr [ebp - 0x24], 0
            //   7506                 | jne                 8
            //   837de000             | cmp                 dword ptr [ebp - 0x20], 0
            //   7405                 | je                  7

        $sequence_1 = { 8d45dc 50 ff75d8 8d8560ffffff 50 ff75e0 ff15???????? }
            // n = 7, score = 100
            //   8d45dc               | lea                 eax, dword ptr [ebp - 0x24]
            //   50                   | push                eax
            //   ff75d8               | push                dword ptr [ebp - 0x28]
            //   8d8560ffffff         | lea                 eax, dword ptr [ebp - 0xa0]
            //   50                   | push                eax
            //   ff75e0               | push                dword ptr [ebp - 0x20]
            //   ff15????????         |                     

        $sequence_2 = { 33c0 668945e2 33c0 8945e4 8945e8 837df020 }
            // n = 6, score = 100
            //   33c0                 | xor                 eax, eax
            //   668945e2             | mov                 word ptr [ebp - 0x1e], ax
            //   33c0                 | xor                 eax, eax
            //   8945e4               | mov                 dword ptr [ebp - 0x1c], eax
            //   8945e8               | mov                 dword ptr [ebp - 0x18], eax
            //   837df020             | cmp                 dword ptr [ebp - 0x10], 0x20

        $sequence_3 = { 6a00 8d85a4f9ffff 50 ff15???????? 5f 5e 8be5 }
            // n = 7, score = 100
            //   6a00                 | push                0
            //   8d85a4f9ffff         | lea                 eax, dword ptr [ebp - 0x65c]
            //   50                   | push                eax
            //   ff15????????         |                     
            //   5f                   | pop                 edi
            //   5e                   | pop                 esi
            //   8be5                 | mov                 esp, ebp

        $sequence_4 = { 0fb7844504f7ffff 83f83b 741f 8b45d8 8b4df0 668b8c4d04f7ffff }
            // n = 6, score = 100
            //   0fb7844504f7ffff     | movzx               eax, word ptr [ebp + eax*2 - 0x8fc]
            //   83f83b               | cmp                 eax, 0x3b
            //   741f                 | je                  0x21
            //   8b45d8               | mov                 eax, dword ptr [ebp - 0x28]
            //   8b4df0               | mov                 ecx, dword ptr [ebp - 0x10]
            //   668b8c4d04f7ffff     | mov                 cx, word ptr [ebp + ecx*2 - 0x8fc]

        $sequence_5 = { 8365c800 8365d000 c745b840420f00 8365e000 eb07 8b45e0 40 }
            // n = 7, score = 100
            //   8365c800             | and                 dword ptr [ebp - 0x38], 0
            //   8365d000             | and                 dword ptr [ebp - 0x30], 0
            //   c745b840420f00       | mov                 dword ptr [ebp - 0x48], 0xf4240
            //   8365e000             | and                 dword ptr [ebp - 0x20], 0
            //   eb07                 | jmp                 9
            //   8b45e0               | mov                 eax, dword ptr [ebp - 0x20]
            //   40                   | inc                 eax

        $sequence_6 = { 59 6bc900 668981e8c34000 6a02 }
            // n = 4, score = 100
            //   59                   | pop                 ecx
            //   6bc900               | imul                ecx, ecx, 0
            //   668981e8c34000       | mov                 word ptr [ecx + 0x40c3e8], ax
            //   6a02                 | push                2

        $sequence_7 = { 59 59 6a0f 6a00 8d45bc 50 }
            // n = 6, score = 100
            //   59                   | pop                 ecx
            //   59                   | pop                 ecx
            //   6a0f                 | push                0xf
            //   6a00                 | push                0
            //   8d45bc               | lea                 eax, dword ptr [ebp - 0x44]
            //   50                   | push                eax

        $sequence_8 = { 8365f000 8b45f0 8945f8 837df800 7456 }
            // n = 5, score = 100
            //   8365f000             | and                 dword ptr [ebp - 0x10], 0
            //   8b45f0               | mov                 eax, dword ptr [ebp - 0x10]
            //   8945f8               | mov                 dword ptr [ebp - 8], eax
            //   837df800             | cmp                 dword ptr [ebp - 8], 0
            //   7456                 | je                  0x58

        $sequence_9 = { 83e002 7415 ff750c ff75fc e8???????? 59 }
            // n = 6, score = 100
            //   83e002               | and                 eax, 2
            //   7415                 | je                  0x17
            //   ff750c               | push                dword ptr [ebp + 0xc]
            //   ff75fc               | push                dword ptr [ebp - 4]
            //   e8????????           |                     
            //   59                   | pop                 ecx

    condition:
        7 of them and filesize < 7192576
}
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