Analysis

  • max time kernel
    77s
  • max time network
    143s
  • 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 17:35

General

  • Target

    ee8b99cc9e2c56333410246b2eaa2b6b16ae99cbd6aa6039f4904f138d58fb93.exe

  • Size

    512KB

  • MD5

    b081930da1ab72a32c59729d50b2b54f

  • SHA1

    0cfbbfbba0c07332180fde27492da7c85d1786c4

  • SHA256

    ee8b99cc9e2c56333410246b2eaa2b6b16ae99cbd6aa6039f4904f138d58fb93

  • SHA512

    2d88bb1d78976b92d99229ecae0ae1e33e871e81f98f3a33e133e845cb6d56f8003ade7930cc8840648955502f09676ffdb32e75bbf19aa0e98318c3f2068c5f

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4h:0+h9OY70z+warul3E4h

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\ee8b99cc9e2c56333410246b2eaa2b6b16ae99cbd6aa6039f4904f138d58fb93.exe
    "C:\Users\Admin\AppData\Local\Temp\ee8b99cc9e2c56333410246b2eaa2b6b16ae99cbd6aa6039f4904f138d58fb93.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:632
    • C:\Users\Admin\AppData\Local\Temp\n6579\s6579.exe
      "C:\Users\Admin\AppData\Local\Temp\n6579\s6579.exe" 45b33af07924c1d4cb70ebaatZZU6NJwJ2a2OeNEM2uX6N9kDQYB/SOfO79nYpI6iQ5j8BtZwRdI1kfezSm6jHsBRWweqYXRlTl3F1Zq54x7Wna/9RVgNQNu1ltTHgxB2yhZ0P8fVOyHh6Iaw3s1otBThAB0E8xmMbYNN7mYsW/FpbAY /v "C:\Users\Admin\AppData\Local\Temp\ee8b99cc9e2c56333410246b2eaa2b6b16ae99cbd6aa6039f4904f138d58fb93.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:1296

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n6579\s6579.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n6579\s6579.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1296-135-0x00007FFE92920000-0x00007FFE93356000-memory.dmp

    Filesize

    10.2MB

  • memory/1296-136-0x000000000105A000-0x000000000105F000-memory.dmp

    Filesize

    20KB

  • memory/1296-137-0x000000000105A000-0x000000000105F000-memory.dmp

    Filesize

    20KB