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Analysis

  • max time kernel
    147s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    23/12/2024, 22:00

General

  • Target

    lejdjsong.exe

  • Size

    73KB

  • MD5

    86a148c54d7a5ee49386393a7bd64e75

  • SHA1

    3bcd7adf68d28514c0d362964bf4ac1e067bda6f

  • SHA256

    7cc777f463f00d5389c55fe6cc7904b427efd52ab0b2e932ddd1210d6c0eedb6

  • SHA512

    214f5530b2adc519243cd0c10af2987275988b45e1050f147391ece49c3ab2ae3ec4dff4f79598a6f9061ae4d70fbc78334d4a1ae2e863ab92628e0b4beb00fb

  • SSDEEP

    1536:tBsMIL1gs031sHpiCq9lnLo4LR6ruhb8muP/CAzaJG5dJXBsWScd+u5Ngih:YMA2s031sH81R6ruhbfa/XJH+aNgih

Malware Config

Extracted

Family

formbook

Campaign

nob2

Decoy

en+O8QOx9zDZZo6B

4OtleJKQETLZZo6B

xGU74u2nB/TAvy6QCqHWGzhs5rjgJKkH8Q==

Hq3a8RPSF4BJjsCnvBuPXSngiQ==

Ca1w6R7ZEzrZZo6B

V3N7ImFtXIccbqg=

jkdEFrI4Bjj/

rGXE4vP2e7leaO0+Mw==

mFACnMuCTkL+R3Fh+5rYDQ==

k1R/bHxIDwfQHVtMUnukJu3OiA==

Goa71OKQKE9ALQ==

TUVlDTovqKZqfHiwJHaK

VBnCLD8NiCkMIw==

fIbQ7Joi+SgIi/y6E7P5RoPjihFL

UTcvz+rs7OfK+DARp/kwBpv6Jq7TVgs=

rF084AkQIlQmdZwZOg==

6eJWgNCEuf3EAbCxkXiM

JcyQCi86x+3MC8IYjvN0uyjYjg==

S+8thMWBzyTZZo6B

5dDUXJSODfnS/DkyX8Nobh0=

Signatures

  • Formbook

    Formbook is a data stealing malware which is capable of stealing data.

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

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

  • Suspicious use of SetThreadContext 4 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 33 IoCs
  • Suspicious behavior: MapViewOfSection 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1188
    • C:\Users\Admin\AppData\Local\Temp\lejdjsong.exe
      "C:\Users\Admin\AppData\Local\Temp\lejdjsong.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2744
      • C:\Users\Admin\AppData\Local\Temp\lejdjsong.exe
        "C:\Users\Admin\AppData\Local\Temp\lejdjsong.exe"
        3⤵
        • Checks computer location settings
        • Suspicious use of SetThreadContext
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious behavior: MapViewOfSection
        • Suspicious use of AdjustPrivilegeToken
        PID:2760
    • C:\Windows\SysWOW64\wlanext.exe
      "C:\Windows\SysWOW64\wlanext.exe"
      2⤵
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of AdjustPrivilegeToken
      PID:2940

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1188-9-0x0000000004F80000-0x0000000005068000-memory.dmp

    Filesize

    928KB

  • memory/1188-17-0x0000000005070000-0x0000000005146000-memory.dmp

    Filesize

    856KB

  • memory/1188-10-0x0000000005070000-0x0000000005146000-memory.dmp

    Filesize

    856KB

  • memory/1188-5-0x0000000004F80000-0x0000000005068000-memory.dmp

    Filesize

    928KB

  • memory/2744-0-0x00000000000F0000-0x00000000000F2000-memory.dmp

    Filesize

    8KB

  • memory/2760-4-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2760-8-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2760-7-0x0000000000423000-0x0000000000424000-memory.dmp

    Filesize

    4KB

  • memory/2760-6-0x0000000000401000-0x000000000042F000-memory.dmp

    Filesize

    184KB

  • memory/2760-3-0x0000000000400000-0x000000000042F000-memory.dmp

    Filesize

    188KB

  • memory/2760-14-0x0000000000401000-0x000000000042F000-memory.dmp

    Filesize

    184KB

  • memory/2760-2-0x0000000000401000-0x000000000042F000-memory.dmp

    Filesize

    184KB

  • memory/2940-12-0x0000000000540000-0x0000000000556000-memory.dmp

    Filesize

    88KB

  • memory/2940-15-0x0000000000540000-0x0000000000556000-memory.dmp

    Filesize

    88KB

  • memory/2940-16-0x0000000000080000-0x00000000000AD000-memory.dmp

    Filesize

    180KB