Analysis

  • max time kernel
    66s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-11-2022 07:59

General

  • Target

    51738073fb09be70d9562142db90354822e3faacb22478fe9342c83a0d60c0d6.exe

  • Size

    512KB

  • MD5

    070546841542f058ac3a7f19c25cbe34

  • SHA1

    3131960e32e6e1107eca6e60863cd39ee9c4f331

  • SHA256

    51738073fb09be70d9562142db90354822e3faacb22478fe9342c83a0d60c0d6

  • SHA512

    4af377b368d874ee58bc344ac93f5d26cba5f7d7a968a9f1b840396d10c164ff15e61aeaec09fdcb7c64a9d504dd6c2de06d2be1e18ea3750f27594095f59c81

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4N:0+h9OY70z+warul3E4N

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\51738073fb09be70d9562142db90354822e3faacb22478fe9342c83a0d60c0d6.exe
    "C:\Users\Admin\AppData\Local\Temp\51738073fb09be70d9562142db90354822e3faacb22478fe9342c83a0d60c0d6.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:5028
    • C:\Users\Admin\AppData\Local\Temp\n1495\s1495.exe
      "C:\Users\Admin\AppData\Local\Temp\n1495\s1495.exe" 29f218474d15aa407936a4cf2UH28ZDmFs99DA0EKnxkFC4UMQvnLXzxi1Z+kdEq78hkzd01tlBDJNZDqkwjQLh+oppdnVF90ZRVZFSJSKdLAodDSnIA4pDMhell6nXfi1J7/yECVqJECjVtCsr+0Ex06Vz1y0+i9eRnmfrvz/B2ROLA /v "C:\Users\Admin\AppData\Local\Temp\51738073fb09be70d9562142db90354822e3faacb22478fe9342c83a0d60c0d6.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:4976

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n1495\s1495.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n1495\s1495.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/4976-138-0x00007FFCED390000-0x00007FFCEDDC6000-memory.dmp

    Filesize

    10.2MB

  • memory/4976-139-0x0000000000CDA000-0x0000000000CDF000-memory.dmp

    Filesize

    20KB

  • memory/4976-140-0x0000000000CDA000-0x0000000000CDF000-memory.dmp

    Filesize

    20KB