Analysis

  • max time kernel
    63s
  • max time network
    127s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 13:43

General

  • Target

    44aeb62d82435c5ba274c0082621125ead67064c1c5114d288e5615b0e581f0b.exe

  • Size

    512KB

  • MD5

    a1f067da1fcea15b813cdb9f283d55b8

  • SHA1

    e55060e0ef7566771d390ee120d1938ff6956485

  • SHA256

    44aeb62d82435c5ba274c0082621125ead67064c1c5114d288e5615b0e581f0b

  • SHA512

    43afd44d22d37348e96278629d86963d27bbfe87c04d818df46864d27f45ff3b2eb270df59c2668dbd87b2659c6c3e3901ab06034a8973eeb77add20e184a494

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4f:0+h9OY70z+warul3E4f

Score
9/10

Malware Config

Signatures

  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 1 IoCs
  • Executes dropped EXE 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Drops desktop.ini file(s) 2 IoCs
  • Drops file in Windows directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Enumerates system info in registry 2 TTPs 2 IoCs
  • Modifies system certificate store 2 TTPs 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\44aeb62d82435c5ba274c0082621125ead67064c1c5114d288e5615b0e581f0b.exe
    "C:\Users\Admin\AppData\Local\Temp\44aeb62d82435c5ba274c0082621125ead67064c1c5114d288e5615b0e581f0b.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks computer location settings
    • Enumerates system info in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:4844
    • C:\Users\Admin\AppData\Local\Temp\n5758\s5758.exe
      "C:\Users\Admin\AppData\Local\Temp\n5758\s5758.exe" f86ed64b9174f85816c72149R3sPHjxSAzmKO9DrtdKg4NFz9JVvEbhrsjEqm9Z6Y5FzPxq4NA3ZtECpJGmR/wcifbHHCSPqM9utvsn/eElJzbrO4NSDOz38q16jvK4F9EUd8SI6kxyqukZLqPRJLjNvz4ckeMy0kqc7qqcwJxGfyQ6c /v "C:\Users\Admin\AppData\Local\Temp\44aeb62d82435c5ba274c0082621125ead67064c1c5114d288e5615b0e581f0b.exe"
      2⤵
      • Executes dropped EXE
      • Drops desktop.ini file(s)
      • Drops file in Windows directory
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2796

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n5758\s5758.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n5758\s5758.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/2796-135-0x00007FFA52220000-0x00007FFA52C56000-memory.dmp

    Filesize

    10.2MB

  • memory/2796-136-0x000000000191A000-0x000000000191F000-memory.dmp

    Filesize

    20KB

  • memory/2796-137-0x000000000191A000-0x000000000191F000-memory.dmp

    Filesize

    20KB