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Analysis

  • max time kernel
    118s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    19/12/2024, 02:34

General

  • Target

    d8af30c2b4bd88aaaaca98625fb46c6afce964a7e6e6309396070baecfff34bfN.exe

  • Size

    686KB

  • MD5

    eafdff2c6dbc5ad759b5faf10b229860

  • SHA1

    a570260798cbc0dcf8809953120c6a3f981312ff

  • SHA256

    d8af30c2b4bd88aaaaca98625fb46c6afce964a7e6e6309396070baecfff34bf

  • SHA512

    b88e69f9050610bb8b8522ca1bca7723d8e67797f42c259f09ddb50b3d12bd7f3260bcbb5397e7798381c67f6135dc23b72ac7198439f3b8e8338e218a7250f7

  • SSDEEP

    12288:5mWhND9yJz+b1FcMLmp2ATTSsdApVHyGbs2CYPHrLpVmCbHDSgp:5mUNJyJqb1FcMap2ATT5itjCYZ3DSo

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\d8af30c2b4bd88aaaaca98625fb46c6afce964a7e6e6309396070baecfff34bfN.exe
    "C:\Users\Admin\AppData\Local\Temp\d8af30c2b4bd88aaaaca98625fb46c6afce964a7e6e6309396070baecfff34bfN.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:1452
    • 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:3004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\9FAB.tmp

    Filesize

    1KB

    MD5

    9086c733e0204c3c07fd476862096ef8

    SHA1

    2d99b9de7109e75c5591589e7e1122f4d7c27341

    SHA256

    62061e676be0a0a4f464bfe49e8d7123990872fe94d633e2c7a5d606fb8f3f97

    SHA512

    02e6d2b14c8f38019f9ceb00fad4990eecd43fc0df2d52e43e9da4814e19142b4eeb0f158a2d832ac82d22891aa43fa5c6c5df4d52f356aad060666f0e5d5851

  • C:\Users\Admin\AppData\Local\Temp\EE2B.tmp

    Filesize

    12KB

    MD5

    caa300673c11a7627a7b6346e1a93b61

    SHA1

    7ecaf36f1e150c478b6cfc3446ec7f0c662c071a

    SHA256

    42ae110a0ecd0d83c4f12314d42a585354b501856dc3c7b483123fcbc317f2aa

    SHA512

    f11f1182d2fdc14b2c64e2221091e318f76c9a41824977c1a93bf2077300bba919ca4a01c80340c4c20d239ac6dbadf091f544891f0ec72df62a6cc11231faa6

  • \Windows\AppPatch\svchost.exe

    Filesize

    686KB

    MD5

    7275e74bebde594fd44a3c4f54ccc6b8

    SHA1

    1af235779c0358ccf4f25f6be06db97144fb6e10

    SHA256

    ebfc8e9f611a73964dbb834f3f060fffeaec705eaf7a8bf6d5d101cffc2f866c

    SHA512

    c6f29fde681e387c91f1f3bf70cac71d1585d5700a5a0ea209b8a06efc4e307e023fbe3b8c8e22106808fd9fec426cb6303f1552b9925b88c0fc8db82915ede0

  • memory/1452-13-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/3004-14-0x0000000000310000-0x00000000003B8000-memory.dmp

    Filesize

    672KB

  • memory/3004-20-0x0000000000310000-0x00000000003B8000-memory.dmp

    Filesize

    672KB

  • memory/3004-24-0x0000000000310000-0x00000000003B8000-memory.dmp

    Filesize

    672KB

  • memory/3004-22-0x0000000000310000-0x00000000003B8000-memory.dmp

    Filesize

    672KB

  • memory/3004-18-0x0000000000310000-0x00000000003B8000-memory.dmp

    Filesize

    672KB

  • memory/3004-16-0x0000000000310000-0x00000000003B8000-memory.dmp

    Filesize

    672KB

  • memory/3004-27-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-30-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-28-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-37-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-47-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-78-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-77-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-76-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-75-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-74-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-73-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-72-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-71-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-70-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-68-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-67-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-66-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-65-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-64-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-63-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-62-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-61-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-60-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-59-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-58-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-57-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-56-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-55-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-54-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-53-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-52-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-51-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-50-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-49-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-48-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-46-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-45-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-44-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-69-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-43-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-42-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-41-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-40-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-39-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-38-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-32-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-36-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-35-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-34-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-33-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB

  • memory/3004-191-0x00000000023D0000-0x0000000002486000-memory.dmp

    Filesize

    728KB