Analysis

  • max time kernel
    149s
  • max time network
    176s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 06:40

General

  • Target

    f5fb160e750793b25aab683265486de32d3143d010182a6f4674f8017539e1d5.exe

  • Size

    512KB

  • MD5

    019190c216a1d1282fb19a2006a17353

  • SHA1

    dfa1f05c8d70a51448fc410bbe845c2a97f9764f

  • SHA256

    f5fb160e750793b25aab683265486de32d3143d010182a6f4674f8017539e1d5

  • SHA512

    b7af8e34ea1e0bb8aef13378a5096c143ec30d2f05d4dcc23d698e414f4a71e98f92332022e6ffb95499bbd2453b8c5da2791a12ee74671543de3f24f39bd935

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4u:0+h9OY70z+warul3E4u

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\f5fb160e750793b25aab683265486de32d3143d010182a6f4674f8017539e1d5.exe
    "C:\Users\Admin\AppData\Local\Temp\f5fb160e750793b25aab683265486de32d3143d010182a6f4674f8017539e1d5.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:1516
    • C:\Users\Admin\AppData\Local\Temp\n12\s12.exe
      "C:\Users\Admin\AppData\Local\Temp\n12\s12.exe" 039aa93705f464599ea9b392q/MZOWQest4YW+/w/YqAjAlhaiU0YcUVNDc0YXmnkyO2NwC8OTPe8kCXVUIR/4U6bVNg1jo9i7BC9pHqisHzDe+y8L5MvUIPC1pkXd+hfUfggrVIENP68GUv0Qx1+ovichpVxwoeopPIXkbLFNdgU6K9 /v "C:\Users\Admin\AppData\Local\Temp\f5fb160e750793b25aab683265486de32d3143d010182a6f4674f8017539e1d5.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:2620

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n12\s12.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n12\s12.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/2620-132-0x0000000000000000-mapping.dmp

  • memory/2620-135-0x00007FF815810000-0x00007FF816246000-memory.dmp

    Filesize

    10.2MB

  • memory/2620-136-0x00000000015BA000-0x00000000015BF000-memory.dmp

    Filesize

    20KB

  • memory/2620-137-0x00000000015BA000-0x00000000015BF000-memory.dmp

    Filesize

    20KB

  • memory/2620-138-0x00000000015BA000-0x00000000015BF000-memory.dmp

    Filesize

    20KB