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Analysis

  • max time kernel
    130s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 22:31

General

  • Target

    e51b9f92cbedbecaf2f18f896c4dd1ccfaa379ebc44b964edb676c94531141fa.exe

  • Size

    512KB

  • MD5

    fd5cd6ce10d330115d71f4eb8096b7c5

  • SHA1

    8a98a9393b249f1d3f51661a1e0563feb9ba07cb

  • SHA256

    e51b9f92cbedbecaf2f18f896c4dd1ccfaa379ebc44b964edb676c94531141fa

  • SHA512

    647fa43856b9e06349ef0ae4f7bf8f09885a997029c9e4e6d1a011b42b8001a25851b1e95dd5f04ff3062c24fc8d7aa4a4848f322b1784e0c428a6668af722e6

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4/:0+h9OY70z+warul3E4/

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 System32 directory 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.

  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 4 IoCs
  • Modifies system certificate store 2 TTPs 5 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\e51b9f92cbedbecaf2f18f896c4dd1ccfaa379ebc44b964edb676c94531141fa.exe
    "C:\Users\Admin\AppData\Local\Temp\e51b9f92cbedbecaf2f18f896c4dd1ccfaa379ebc44b964edb676c94531141fa.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:2228
    • C:\Users\Admin\AppData\Local\Temp\n282\s282.exe
      "C:\Users\Admin\AppData\Local\Temp\n282\s282.exe" f8a8eefe3a5397197daa6c68ZfGrbqVPSGazdkovEar/H2VFAMxKv75Mx3iS6AyORncudNjJVpnY0UrAu8edkZGH8USDZaMnJFsATPCirbnelzaRjaI0z1n4aysRkSXVml0e/4O5K9qx5Cqw0eO17VUBkiKI69uvZW29HT5qwousFo7+ /v "C:\Users\Admin\AppData\Local\Temp\e51b9f92cbedbecaf2f18f896c4dd1ccfaa379ebc44b964edb676c94531141fa.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:1824
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p
    1⤵
    • Drops file in System32 directory
    • Checks processor information in registry
    • Enumerates system info in registry
    PID:2716

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n282\s282.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n282\s282.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1824-135-0x00007FFD6B170000-0x00007FFD6BBA6000-memory.dmp

    Filesize

    10.2MB

  • memory/1824-136-0x0000000000D2A000-0x0000000000D2F000-memory.dmp

    Filesize

    20KB

  • memory/1824-137-0x0000000000D2A000-0x0000000000D2F000-memory.dmp

    Filesize

    20KB

  • memory/1824-138-0x0000000000D2A000-0x0000000000D2F000-memory.dmp

    Filesize

    20KB