Analysis

  • max time kernel
    118s
  • max time network
    120s
  • platform
    windows10-ltsc 2021_x64
  • resource
    win10ltsc2021-20241211-fr
  • resource tags

    arch:x64arch:x86image:win10ltsc2021-20241211-frlocale:fr-fros:windows10-ltsc 2021-x64systemwindows
  • submitted
    15-12-2024 10:00

Errors

Reason
Machine shutdown

General

  • Target

    MFjGBrO.exe

  • Size

    475KB

  • MD5

    cbe2f2a631cafa3abf6169b419e84dc5

  • SHA1

    20ac6d8060f99f16a92db8aa55ddfb7b2f2997c4

  • SHA256

    f23839bc1f59d1cd4c542169e22882ac68063a169ae6f3e25e82b91c5e300b58

  • SHA512

    0f879a83e08f43576786fc5e561c73e1eeec0799574e5ba3018b88b96b1abbd177385f7b0b3db3d97fdf1328ec2b0813223ab725915eb57774362f868a076d1f

  • SSDEEP

    12288:byveQB/fTHIGaPkKEYzURNAwbAg8FvKIfKJzHj:buDXTIGaPhEYzUzA0qJKIfizHj

Malware Config

Extracted

Family

discordrat

Attributes
  • discord_token

    MTMxMDkxODg1Mjk4ODc2NDE4MA.GzBXeG.IQdsANXf5vF4yFt_OatJlXeGmRVH0AzHFLzfHw

  • server_id

    1310919517383294990

Signatures

  • Discord RAT

    A RAT written in C# using Discord as a C2.

  • Discordrat family
  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Legitimate hosting services abused for malware hosting/C2 1 TTPs 16 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MFjGBrO.exe
    "C:\Users\Admin\AppData\Local\Temp\MFjGBrO.exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1216
    • C:\Windows\system32\mspaint.exe
      "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\RarSFX0\picperms.jpg"
      2⤵
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:4696
    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\back.exe.exe
      "C:\Users\Admin\AppData\Local\Temp\RarSFX0\back.exe.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      PID:4972
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
    1⤵
      PID:4440

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\back.exe.exe

      Filesize

      78KB

      MD5

      3d44659c2dd4aa6c8dd0e21fd29769ab

      SHA1

      3e0724fc329780d69a92bd73919924f6234cd3fe

      SHA256

      6795c0e852fa9d12ccd72e08bf0eb701a5f4f928cb72b6de61fe15d4a8fc20b1

      SHA512

      1300172a2c87ec4d37db051f636c76042ace4556db84051ae61159e86f79acb4fd13268248bfe6b78198729b095a649a969a1e741d81e72fae9f1c29afcb41a3

    • C:\Users\Admin\AppData\Local\Temp\RarSFX0\picperms.jpg

      Filesize

      18KB

      MD5

      f061044c48793fd6d15dac694d4d878d

      SHA1

      b6900dcf3b604869a1158081d67eb9973c267efe

      SHA256

      045cd1aec7b97f481eac17ff58e4d1522e06704db9ad02661e66a0bc934389aa

      SHA512

      885990ca88c3215165fb459b0b8cb92b5dc5fd3056c06d1d4023bbfb86acb9f1e698bafb6e3710ba4fd74b3bafbdeb8bd86db2b4260cbd9e4e0f5ae8565f7a58

    • memory/4972-26-0x0000020BF5E10000-0x0000020BF5E28000-memory.dmp

      Filesize

      96KB

    • memory/4972-27-0x0000020BF8480000-0x0000020BF8642000-memory.dmp

      Filesize

      1.8MB

    • memory/4972-28-0x0000020BF7A10000-0x0000020BF7A52000-memory.dmp

      Filesize

      264KB

    • memory/4972-29-0x0000020BF8C80000-0x0000020BF91A8000-memory.dmp

      Filesize

      5.2MB

    • memory/4972-30-0x0000020BF8860000-0x0000020BF8962000-memory.dmp

      Filesize

      1.0MB

    • memory/4972-31-0x0000020BF8A70000-0x0000020BF8AE6000-memory.dmp

      Filesize

      472KB

    • memory/4972-32-0x0000020BF8420000-0x0000020BF8432000-memory.dmp

      Filesize

      72KB

    • memory/4972-33-0x0000020BF8450000-0x0000020BF846E000-memory.dmp

      Filesize

      120KB

    • memory/4972-34-0x0000020BFA260000-0x0000020BFA52A000-memory.dmp

      Filesize

      2.8MB