Analysis

  • max time kernel
    144s
  • max time network
    138s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-12-2023 12:12

General

  • Target

    1d5cdfd4ecbaa1587fb1bd8c687914b8.exe

  • Size

    512KB

  • MD5

    1d5cdfd4ecbaa1587fb1bd8c687914b8

  • SHA1

    45caf9225601c163799479128033a176a8163dec

  • SHA256

    12a29d34a20ea2a574da0b1299b87830f3a5d72842226b8db2735ca65b7c5fa1

  • SHA512

    a2d3ebf94732c268460352147f9b25be0c6233daefd104bf909c97635056a68c0df0b072d29faddebe378c05bf5d3663311b8239420b486981f9c8177f4619e3

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4l:0+h9OY70z+warul3E4l

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 8 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\1d5cdfd4ecbaa1587fb1bd8c687914b8.exe
    "C:\Users\Admin\AppData\Local\Temp\1d5cdfd4ecbaa1587fb1bd8c687914b8.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:3452
    • C:\Users\Admin\AppData\Local\Temp\n134\s134.exe
      "C:\Users\Admin\AppData\Local\Temp\n134\s134.exe" 5efc63af888fbb03d58b7140tjFB011jOGgOi3YMEewxYMve5srlpyaREhnnJ9QXSsKUztHcJz61HOHOYIOqOHGSWKJX0W8GV3eJH6dIH7yNxmJ3b12x4/ruFnhjefmx6cuLVMvX+HkLu/kDclni2fcx7FLoP5f6uM+ZJ56weEbRKM8L /v "C:\Users\Admin\AppData\Local\Temp\1d5cdfd4ecbaa1587fb1bd8c687914b8.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:2856

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n134\s134.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/2856-13-0x00000000010A0000-0x00000000010B0000-memory.dmp

    Filesize

    64KB

  • memory/2856-12-0x00007FFCE2890000-0x00007FFCE3231000-memory.dmp

    Filesize

    9.6MB

  • memory/2856-32-0x000000001C4F0000-0x000000001C9BE000-memory.dmp

    Filesize

    4.8MB

  • memory/2856-33-0x000000001CA60000-0x000000001CAFC000-memory.dmp

    Filesize

    624KB

  • memory/2856-29-0x000000001BA50000-0x000000001BA62000-memory.dmp

    Filesize

    72KB

  • memory/2856-34-0x000000001CC10000-0x000000001CC72000-memory.dmp

    Filesize

    392KB

  • memory/2856-35-0x00000000010A0000-0x00000000010B0000-memory.dmp

    Filesize

    64KB

  • memory/2856-36-0x000000001BBA0000-0x000000001BBA8000-memory.dmp

    Filesize

    32KB

  • memory/2856-37-0x00000000010A0000-0x00000000010B0000-memory.dmp

    Filesize

    64KB

  • memory/2856-38-0x00000000010A0000-0x00000000010B0000-memory.dmp

    Filesize

    64KB

  • memory/2856-41-0x00000000010A0000-0x00000000010B0000-memory.dmp

    Filesize

    64KB

  • memory/2856-40-0x00000000010A0000-0x00000000010B0000-memory.dmp

    Filesize

    64KB

  • memory/2856-39-0x00007FFCE2890000-0x00007FFCE3231000-memory.dmp

    Filesize

    9.6MB

  • memory/2856-42-0x00000000206E0000-0x0000000020BEE000-memory.dmp

    Filesize

    5.1MB

  • memory/2856-43-0x00000000010A0000-0x00000000010B0000-memory.dmp

    Filesize

    64KB

  • memory/2856-44-0x00007FFCE2890000-0x00007FFCE3231000-memory.dmp

    Filesize

    9.6MB

  • memory/2856-45-0x0000000020F30000-0x000000002106C000-memory.dmp

    Filesize

    1.2MB

  • memory/2856-46-0x00000000010A0000-0x00000000010B0000-memory.dmp

    Filesize

    64KB

  • memory/2856-48-0x00007FFCE2890000-0x00007FFCE3231000-memory.dmp

    Filesize

    9.6MB