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Analysis

  • max time kernel
    194s
  • max time network
    200s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 19:42

General

  • Target

    b9bc164ba1390dc0428ae4cf33d39bac31b65c5b77df85ec9c6cf35cb9c9575b.exe

  • Size

    512KB

  • MD5

    311a21153bd56f4533fb69ff95e420bd

  • SHA1

    edb0dfd5191b0a2e74508f346f3565daabad4338

  • SHA256

    b9bc164ba1390dc0428ae4cf33d39bac31b65c5b77df85ec9c6cf35cb9c9575b

  • SHA512

    81622b1a83fa3675f4e807999a5f8acecd25d70649e9d2fced91164bea1183cf0f6d45fa229f2e5b0ff51866ef42edf0dde5ddf7ce2c527d7e904007ba0ac09d

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4R:0+h9OY70z+warul3E4R

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 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\b9bc164ba1390dc0428ae4cf33d39bac31b65c5b77df85ec9c6cf35cb9c9575b.exe
    "C:\Users\Admin\AppData\Local\Temp\b9bc164ba1390dc0428ae4cf33d39bac31b65c5b77df85ec9c6cf35cb9c9575b.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:1808
    • C:\Users\Admin\AppData\Local\Temp\n7151\s7151.exe
      "C:\Users\Admin\AppData\Local\Temp\n7151\s7151.exe" b47ef6492e0f22c0f6c3da91MTOc3YK4L8pO3dFLDlnLoS4c7dkP6IO65pmj30iNCoK17Q3yPSKs8R/qXKIRKH7I5lWv/ogPQYk+oxPZQJo/Ha3IgNdq5kajTSDXxUfH0QwlCBPulPw79OVmwSoBIIiTYPZnAZazZ3wY4PF7n+ibX+2Q /v "C:\Users\Admin\AppData\Local\Temp\b9bc164ba1390dc0428ae4cf33d39bac31b65c5b77df85ec9c6cf35cb9c9575b.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:1628

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n7151\s7151.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n7151\s7151.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1628-135-0x00007FFD38360000-0x00007FFD38D96000-memory.dmp

    Filesize

    10.2MB

  • memory/1628-136-0x000000000156A000-0x000000000156F000-memory.dmp

    Filesize

    20KB

  • memory/1628-137-0x000000000156A000-0x000000000156F000-memory.dmp

    Filesize

    20KB