Analysis

  • max time kernel
    110s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    19-01-2025 21:53

General

  • Target

    ec4c74c014d3cff66fb977c51929d523300eab8da6c5bf9dcdc977f37479b47d.exe

  • Size

    217KB

  • MD5

    6c448f0af9ce4d0fa1649155dc1beeb6

  • SHA1

    fc6a62ddf081b60537bc24cc84d775daf3e9045b

  • SHA256

    ec4c74c014d3cff66fb977c51929d523300eab8da6c5bf9dcdc977f37479b47d

  • SHA512

    171a7f069ed590b1364f8dc6debac8cfa5de813b0f713200e0e270f8d0b62b7991154284cd1d30f882a56412bf25a2b9be44696bc63a1ba05a9527e45bd115ac

  • SSDEEP

    6144:/rRaTyDOnlo7eM+mlkWgRXOqobzWjozm2ulYM6Y:DsTbzu1glovW4EH6Y

Malware Config

Extracted

Family

simda

Attributes
  • dga

    gatyfus.com

    lyvyxor.com

    vojyqem.com

    qetyfuv.com

    puvyxil.com

    gahyqah.com

    lyryfyd.com

    vocyzit.com

    qegyqaq.com

    purydyv.com

    gacyzuz.com

    lygymoj.com

    vowydef.com

    qexylup.com

    pufymoq.com

    gaqydeb.com

    lyxylux.com

    vofymik.com

    qeqysag.com

    puzylyp.com

    gadyniw.com

    lymysan.com

    volykyc.com

    qedynul.com

    pumypog.com

    galykes.com

    lysynur.com

    vonypom.com

    qekykev.com

    pupybul.com

Signatures

  • Modifies WinLogon for persistence 2 TTPs 1 IoCs
  • Simda family
  • simda

    Simda is an infostealer written in C++.

  • Executes dropped EXE 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Modifies WinLogon 2 TTPs 2 IoCs
  • Drops file in Windows directory 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ec4c74c014d3cff66fb977c51929d523300eab8da6c5bf9dcdc977f37479b47d.exe
    "C:\Users\Admin\AppData\Local\Temp\ec4c74c014d3cff66fb977c51929d523300eab8da6c5bf9dcdc977f37479b47d.exe"
    1⤵
    • Loads dropped DLL
    • Modifies WinLogon
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: RenamesItself
    • Suspicious use of WriteProcessMemory
    PID:1728
    • C:\Windows\apppatch\svchost.exe
      "C:\Windows\apppatch\svchost.exe"
      2⤵
      • Modifies WinLogon for persistence
      • Executes dropped EXE
      • Modifies WinLogon
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:2876

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\EC93.tmp

    Filesize

    593B

    MD5

    926512864979bc27cf187f1de3f57aff

    SHA1

    acdeb9d6187932613c7fa08eaf28f0cd8116f4b5

    SHA256

    b3e893a653ec06c05ee90f2f6e98cc052a92f6616d7cca8c416420e178dcc73f

    SHA512

    f6f9fd3ca9305bec879cfcd38e64111a18e65e30d25c49e9f2cd546cbab9b2dcd03eca81952f6b77c0eaab20192ef7bef0d8d434f6f371811929e75f8620633b

  • C:\Users\Admin\AppData\Local\Temp\EC94.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • C:\Windows\AppPatch\svchost.exe

    Filesize

    217KB

    MD5

    7c888206bfeaabe7efbd107b84205e71

    SHA1

    5d34b35a847510789bb56828ddc257e4b82085a3

    SHA256

    c369244009bc70b7ecdabc08db6211f5ae5be31daaa0c945837667cacd8a26ac

    SHA512

    2c552e5c50438dc4334fd59ec79ef20470da3efbb43b75e7674b844dd64bc390e108982f369714101ffb2326e041935d818f3ffc5757d25ff1c58969076d6a2b

  • memory/1728-0-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/1728-1-0x00000000001B0000-0x0000000000201000-memory.dmp

    Filesize

    324KB

  • memory/1728-2-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1728-17-0x0000000000400000-0x000000000045F000-memory.dmp

    Filesize

    380KB

  • memory/1728-16-0x00000000001B0000-0x0000000000201000-memory.dmp

    Filesize

    324KB

  • memory/1728-15-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2876-76-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-69-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-21-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2876-24-0x00000000020E0000-0x0000000002188000-memory.dmp

    Filesize

    672KB

  • memory/2876-32-0x00000000020E0000-0x0000000002188000-memory.dmp

    Filesize

    672KB

  • memory/2876-30-0x00000000020E0000-0x0000000002188000-memory.dmp

    Filesize

    672KB

  • memory/2876-33-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2876-28-0x00000000020E0000-0x0000000002188000-memory.dmp

    Filesize

    672KB

  • memory/2876-26-0x00000000020E0000-0x0000000002188000-memory.dmp

    Filesize

    672KB

  • memory/2876-22-0x00000000020E0000-0x0000000002188000-memory.dmp

    Filesize

    672KB

  • memory/2876-34-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-36-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-38-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-46-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-45-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-84-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-83-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-82-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-81-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-80-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-79-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-78-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-77-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-19-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2876-74-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-73-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-72-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-71-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-70-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-20-0x0000000000400000-0x0000000000589000-memory.dmp

    Filesize

    1.5MB

  • memory/2876-68-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-67-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-66-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-65-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-64-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-63-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-62-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-61-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-60-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-58-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-57-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-56-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-55-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-54-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-53-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-52-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-51-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-50-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-49-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-48-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-47-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-75-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-44-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-43-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-59-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-42-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-40-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB

  • memory/2876-41-0x00000000025A0000-0x0000000002656000-memory.dmp

    Filesize

    728KB