Analysis

  • max time kernel
    66s
  • max time network
    149s
  • 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 21:35

General

  • Target

    8f83f2c3c51382df0cfdfd7fbb31b8b8f8b15251934a11081f2256dd4bb45e64.exe

  • Size

    512KB

  • MD5

    1ed5204a4b1bf9e3fd8429cdc6ff2404

  • SHA1

    f6093e7d678eeb5f1b75e35ab7dc41e052c52ae2

  • SHA256

    8f83f2c3c51382df0cfdfd7fbb31b8b8f8b15251934a11081f2256dd4bb45e64

  • SHA512

    ec74bdcb2cc98c6977a6965b0a8d0cdb23354c4426c653823890c44d8ca08de510e2bb8c3f139b7c22412ec0f4a1e02409920d2f35891656071689897db79fe1

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4e:0+h9OY70z+warul3E4e

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 5 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\8f83f2c3c51382df0cfdfd7fbb31b8b8f8b15251934a11081f2256dd4bb45e64.exe
    "C:\Users\Admin\AppData\Local\Temp\8f83f2c3c51382df0cfdfd7fbb31b8b8f8b15251934a11081f2256dd4bb45e64.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:3248
    • C:\Users\Admin\AppData\Local\Temp\n5097\s5097.exe
      "C:\Users\Admin\AppData\Local\Temp\n5097\s5097.exe" ecda50c2ecef7170b084c9a1mpGsuRZCOUQ3PqJp0vYqZsQR+utYCz6eMO1GpBk4Z0bgqbVsyEOxopokWuXRFivBv+0XVS3ZCKa8AdD5aSLngTt+jcDY+ciY2IFHG1AE7/t3LREzkIMl4faaUY7Yk2RXFC7EKcXmw0ma1PQpKuplJ6YS /v "C:\Users\Admin\AppData\Local\Temp\8f83f2c3c51382df0cfdfd7fbb31b8b8f8b15251934a11081f2256dd4bb45e64.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:3876

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n5097\s5097.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n5097\s5097.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/3876-132-0x0000000000000000-mapping.dmp

  • memory/3876-135-0x00007FF982810000-0x00007FF983246000-memory.dmp

    Filesize

    10.2MB

  • memory/3876-136-0x000000000071A000-0x000000000071F000-memory.dmp

    Filesize

    20KB

  • memory/3876-137-0x000000000071A000-0x000000000071F000-memory.dmp

    Filesize

    20KB