Analysis

  • max time kernel
    150s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-10-2024 18:29

General

  • Target

    80331cb992b4aaf28c0109096c78e137_JaffaCakes118.exe

  • Size

    2.1MB

  • MD5

    80331cb992b4aaf28c0109096c78e137

  • SHA1

    856a328b145d2a02f591d2fd62e71e21db4e0622

  • SHA256

    99c3b4f9d4c32256e5ab697c5dc4ff1d753b146c846681e429e2a3eb2f207ada

  • SHA512

    128e2ea41800e3a93da297921f918014ae1dc05750f7dcace823fdcd365f422127dca449dd5ce05813ce44eff195b6f589cc95bf4cc40f404bb00eb9ed79a5be

  • SSDEEP

    24576:WDQMyUCLowSEwiR49iPUHV8XgYrpxbNT9IA0HD4OsqirBJu9crkQCmLMR:W8MyUCNd+vVeob0OMp2

Malware Config

Extracted

Family

darkcomet

Botnet

Getjava

C2

essstzttztz.zapto.org:1612

Mutex

DC_MUTEX-NPVY9D6

Attributes
  • gencode

    z3bx7DQvDgi3

  • install

    false

  • offline_keylogger

    true

  • persistence

    false

Extracted

Family

latentbot

C2

essstzttztz.zapto.org

Signatures

  • Darkcomet

    DarkComet is a remote access trojan (RAT) developed by Jean-Pierre Lesueur.

  • Darkcomet family
  • LatentBot

    Modular trojan written in Delphi which has been in-the-wild since 2013.

  • Latentbot family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Uses the VBS compiler for execution 1 TTPs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 2 IoCs
  • UPX packed file 24 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Subvert Trust Controls: Mark-of-the-Web Bypass 1 TTPs 1 IoCs

    When files are downloaded from the Internet, they are tagged with a hidden NTFS Alternate Data Stream (ADS) named Zone.Identifier with a specific value known as the MOTW.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • NTFS ADS 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 25 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\80331cb992b4aaf28c0109096c78e137_JaffaCakes118.exe
    "C:\Users\Admin\AppData\Local\Temp\80331cb992b4aaf28c0109096c78e137_JaffaCakes118.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3500
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      "C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe" /noconfig @"C:\Users\Admin\AppData\Local\Temp\bonse633.cmdline"
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4500
      • C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe
        C:\Windows\Microsoft.NET\Framework\v2.0.50727\cvtres.exe /NOLOGO /READONLY /MACHINE:IX86 "/OUT:C:\Users\Admin\AppData\Local\Temp\RESA1AE.tmp" "C:\Users\Admin\AppData\Local\Temp\vbcAC3B0D4CC3934B5092D6DE8BE9A56353.TMP"
        3⤵
        • System Location Discovery: System Language Discovery
        PID:2596
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious use of SetWindowsHookEx
      PID:3732
    • C:\Windows\SysWOW64\cmd.exe
      "cmd"
      2⤵
      • Subvert Trust Controls: Mark-of-the-Web Bypass
      • System Location Discovery: System Language Discovery
      • NTFS ADS
      PID:744
    • C:\Users\Admin\AppData\Local\Temp\jx.exe
      "C:\Users\Admin\AppData\Local\Temp\jx.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      PID:5036
    • C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      C:\Windows\Microsoft.NET\Framework\v2.0.50727\vbc.exe
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:4340

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\RESA1AE.tmp

    Filesize

    1KB

    MD5

    21bb8ddd5033d2350888358dcc6055e9

    SHA1

    ede850ddde52f5ba5335f907599a0900163f96c9

    SHA256

    6d66e6da8081eac444200d8bfbb78fd1bb69cca4327a051b0049c84dde6c84ed

    SHA512

    3fa5ad3815aad1cc07bede703c2f705f4b726747ddd01de1ac4bd29df0087e626e003d1c7e6c986d1d16aa3498c7fd7b728090734091f0af9736687673468f30

  • C:\Users\Admin\AppData\Local\Temp\bonse633.0.vb

    Filesize

    256B

    MD5

    9f362c5084b0126d5460310d3353d13e

    SHA1

    8617abc0a8c22a109b52e2e3c85b4400ed04b40e

    SHA256

    83ef5a38a9ddf6fcb030ef4f4f63c0e989a49c83691f18b07f851bf35544f2d0

    SHA512

    9f701a8cec9297f50533ee6cf72851f2400bc777013b663cacea1b531801446d08ffc9a3f5d120b7e81a0f363c7421b9c2103e26be6606f7fe29de3107c4cbbf

  • C:\Users\Admin\AppData\Local\Temp\bonse633.cmdline

    Filesize

    317B

    MD5

    1946a7420d7fb634775ed5283e2e7c37

    SHA1

    56a7542764bc122fc71c64df05c66bd10a3c7d22

    SHA256

    619e7d544a276db787ba64697948c26062e95cb35880a404bc889c48f00eaee8

    SHA512

    f3de7bc30167f8033a0196c9aca6efd3f58c64b6f94ea01fabc2783fd2ad1cec8ddf456d1f3564c24e75b98fe57b5f86bd3651a60d5c682eb3bb74c427de7e3f

  • C:\Users\Admin\AppData\Local\Temp\bonse633.dll

    Filesize

    6KB

    MD5

    9bd14c0f061acbf72e71bc651241fbde

    SHA1

    79a4261973598d063fb878f938e1f283d376b7e8

    SHA256

    94851a3ae75bc60b507872025b2938c2df02931542cad9504444d7910a20f13a

    SHA512

    4939e79c49aabc56d2d36c0a00a82abe940edd55e9c6df1c27986f96b9a7caa3b611b864aed4d954c80d4b35566ac30b844d86ecccb4c99aef616ad4a49e7012

  • C:\Users\Admin\AppData\Local\Temp\jusched.log

    Filesize

    163KB

    MD5

    286d788cbfc076f0e661a7ea37380f7b

    SHA1

    ce05b510fce4f15f6cc057e735b84d3668773cda

    SHA256

    7883a10de8b37568d96e653c0654350820322c5f1e99f6d207313fc3304ecbd9

    SHA512

    83fc1dde2e0e3b94dbdc0dcd1a836716d3f08b0420e14afac7fbc2887776bf6437e4b5da761420c32f099d619979e386daf4ffac94ec4fa2df7d365461007c44

  • C:\Users\Admin\AppData\Local\Temp\jx.exe

    Filesize

    871KB

    MD5

    f6167efc4d1ef0d0e2739a521f6c87d0

    SHA1

    c8d1a4b74fd774718ad5d2210e5db1a8c57f931c

    SHA256

    ec3357953ca575beffae55678548f8348cbeaef6a753d3de151007862962e03e

    SHA512

    ce39f11229ed14011acfd0a0edb9bf4bcf9f043b72e8d14320c3235f6889e05ec4dffc521af8ad481326140e31a475badff86a54be45740b857e84fd42342901

  • C:\Users\Admin\AppData\Local\Temp\vbcAC3B0D4CC3934B5092D6DE8BE9A56353.TMP

    Filesize

    652B

    MD5

    1d3b82fcea659b062e08244adad5caf1

    SHA1

    3c514f4544f14209a09e87e28885c861e8d25f43

    SHA256

    cfbefa9a36449f11682f5ddd80d0aaca7bcd32a292571f3d57e4b306e00ab108

    SHA512

    543a64052e0b489d0637f0b4ac1ebea5607f1617d5501d1df021f6778a966e7e1dd6208fbea1b00a2c6e9605ec5f85f5584039a78e2c05113de696c4c9690878

  • C:\Users\Admin\AppData\Roaming\fp.txt

    Filesize

    100B

    MD5

    46141ad6a47ab3d59e09d2e191cee4c9

    SHA1

    8ccccc6069099a080e7d264200d4c6206e5b1fa5

    SHA256

    7c5221717bcc045387d609cbd4b1801159e417a9908bad7fc89a271371e6f2a4

    SHA512

    59afd1d01c979a4c75a565da390265ace4f8594f231a8ba9e6091357e143472a9c4d3e363d75a13a771798d35bfcd897bce0e8ae62db175eebf97a750969bb6e

  • memory/3500-2-0x0000000074AD0000-0x0000000075081000-memory.dmp

    Filesize

    5.7MB

  • memory/3500-1-0x0000000074AD0000-0x0000000075081000-memory.dmp

    Filesize

    5.7MB

  • memory/3500-53-0x0000000074AD0000-0x0000000075081000-memory.dmp

    Filesize

    5.7MB

  • memory/3500-0-0x0000000074AD2000-0x0000000074AD3000-memory.dmp

    Filesize

    4KB

  • memory/3732-20-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/3732-30-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/3732-22-0x0000000000400000-0x0000000000405000-memory.dmp

    Filesize

    20KB

  • memory/4340-77-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-80-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-73-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-54-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-74-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-51-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-50-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-75-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-85-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-65-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-64-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-84-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-55-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-83-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-82-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-76-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-81-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-78-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-79-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4340-48-0x0000000000400000-0x00000000004B7000-memory.dmp

    Filesize

    732KB

  • memory/4500-16-0x0000000074AD0000-0x0000000075081000-memory.dmp

    Filesize

    5.7MB

  • memory/4500-7-0x0000000074AD0000-0x0000000075081000-memory.dmp

    Filesize

    5.7MB

  • memory/5036-44-0x0000000000400000-0x00000000005BB000-memory.dmp

    Filesize

    1.7MB

  • memory/5036-61-0x0000000000400000-0x00000000005BB000-memory.dmp

    Filesize

    1.7MB

  • memory/5036-72-0x0000000000400000-0x00000000005BB000-memory.dmp

    Filesize

    1.7MB