Analysis

  • max time kernel
    122s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-12-2023 18:21

General

  • Target

    3417e38fb9c72a5c38d2be53b9639f97.exe

  • Size

    512KB

  • MD5

    3417e38fb9c72a5c38d2be53b9639f97

  • SHA1

    bfb066aaaaab46f94765a9533945e002dd52c269

  • SHA256

    21d42de417cc386e79a43c45f6f88b77a5c0335a09c9cd900cbfeb365486259d

  • SHA512

    c443e166a6c4a5400fc1e7460fe71f1f36198048226d3f0a16eb027ffd66f545877218428705145bcf8801395c3780a48f1d654a18045e11b5d1c43a1faffd11

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4w:0+h9OY70z+warul3E4w

Score
9/10

Malware Config

Signatures

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

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

  • Executes dropped EXE 1 IoCs
  • 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).

  • 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\3417e38fb9c72a5c38d2be53b9639f97.exe
    "C:\Users\Admin\AppData\Local\Temp\3417e38fb9c72a5c38d2be53b9639f97.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:4612
    • C:\Users\Admin\AppData\Local\Temp\n5219\s5219.exe
      "C:\Users\Admin\AppData\Local\Temp\n5219\s5219.exe" ca56fee4812efff006f111a4QZ1QU4hi880HqV3wXgo7K0DZnApRI5FYkGgLr1NT9RvaEcO3Mw6+7rXEhDGJ1+sHfoiEn9O6YRnwwOXlW9V3I4C9LHO0nMgnDtvtU9Cz9z4Sb/Bn9Tu0W+W/wojh70YmB3Tu/O5gozzeVGyH4kJxhkjN /v "C:\Users\Admin\AppData\Local\Temp\3417e38fb9c72a5c38d2be53b9639f97.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:4940

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n5219\s5219.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4940-12-0x00007FFC3A3F0000-0x00007FFC3AD91000-memory.dmp

    Filesize

    9.6MB

  • memory/4940-13-0x0000000001290000-0x00000000012A0000-memory.dmp

    Filesize

    64KB

  • memory/4940-27-0x0000000001470000-0x0000000001482000-memory.dmp

    Filesize

    72KB

  • memory/4940-30-0x000000001CB00000-0x000000001CFCE000-memory.dmp

    Filesize

    4.8MB

  • memory/4940-31-0x000000001C550000-0x000000001C5EC000-memory.dmp

    Filesize

    624KB

  • memory/4940-32-0x000000001D080000-0x000000001D0E2000-memory.dmp

    Filesize

    392KB

  • memory/4940-33-0x0000000001290000-0x00000000012A0000-memory.dmp

    Filesize

    64KB

  • memory/4940-34-0x000000001C0A0000-0x000000001C0A8000-memory.dmp

    Filesize

    32KB

  • memory/4940-35-0x00007FFC3A3F0000-0x00007FFC3AD91000-memory.dmp

    Filesize

    9.6MB

  • memory/4940-36-0x0000000001290000-0x00000000012A0000-memory.dmp

    Filesize

    64KB

  • memory/4940-37-0x0000000001290000-0x00000000012A0000-memory.dmp

    Filesize

    64KB

  • memory/4940-38-0x0000000001290000-0x00000000012A0000-memory.dmp

    Filesize

    64KB

  • memory/4940-39-0x0000000001290000-0x00000000012A0000-memory.dmp

    Filesize

    64KB

  • memory/4940-40-0x0000000001290000-0x00000000012A0000-memory.dmp

    Filesize

    64KB

  • memory/4940-41-0x0000000020C30000-0x000000002113E000-memory.dmp

    Filesize

    5.1MB

  • memory/4940-42-0x00007FFC3A3F0000-0x00007FFC3AD91000-memory.dmp

    Filesize

    9.6MB

  • memory/4940-43-0x0000000021280000-0x00000000213BC000-memory.dmp

    Filesize

    1.2MB

  • memory/4940-45-0x00007FFC3A3F0000-0x00007FFC3AD91000-memory.dmp

    Filesize

    9.6MB