Analysis

  • max time kernel
    79s
  • max time network
    81s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-08-2024 12:14

General

  • Target

    a9b576a8703f1c890f080b607d6d55f0N.exe

  • Size

    281KB

  • MD5

    a9b576a8703f1c890f080b607d6d55f0

  • SHA1

    42100980c99b4061918948167f2045e626bf7949

  • SHA256

    766fafe256e69366a285f2350e916f496b5c5852847f04bb22fbade7dd6d6960

  • SHA512

    e6862ccf87b40269e6929c2933b85bd10d1081bd158b14077c488f7227f7d96ea53af175d7b2818afa17f3c9275ab974d174320036a436ee80254678fc1bd282

  • SSDEEP

    6144:boy5p178U0MURaGyNXYWQzHazRfXrwSRnWwhrQ66fKkfo:boSeGUA5YZazpXUmZhZ6Sx

Malware Config

Signatures

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a9b576a8703f1c890f080b607d6d55f0N.exe
    "C:\Users\Admin\AppData\Local\Temp\a9b576a8703f1c890f080b607d6d55f0N.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4016
    • C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
      "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1476
      • C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe
        "C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe"
        3⤵
          PID:4352

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Users\Admin\AppData\Roaming\b1b2dqljdx3\a1punf5t2of.exe

      Filesize

      281KB

      MD5

      ef478227d4b42d65fb34b5c6f7a633e9

      SHA1

      2ba4844f0ff371e6cede69535c0b357dd678deb5

      SHA256

      34f923c3ac6d248a3faed87a64e8ec88c81ca5842871824b83643cee35789497

      SHA512

      10fbcfca2665c963977e26a3e3320ad235b6352857937d3ab52109f44fccc0ff09efafc585945fb23e1a50993adeba1a15202812db9534c70844d317e2c6da4e

    • memory/1476-29-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/1476-27-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/1476-26-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/1476-25-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/1476-24-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/1476-22-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/1476-21-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/4016-4-0x0000000074C62000-0x0000000074C63000-memory.dmp

      Filesize

      4KB

    • memory/4016-7-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/4016-6-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/4016-5-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/4016-23-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/4016-0-0x0000000074C62000-0x0000000074C63000-memory.dmp

      Filesize

      4KB

    • memory/4016-3-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/4016-2-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB

    • memory/4016-1-0x0000000074C60000-0x0000000075211000-memory.dmp

      Filesize

      5.7MB