Analysis

  • max time kernel
    150s
  • max time network
    159s
  • 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 23:45

General

  • Target

    c107c43e399a73d8c6e3914c167af827779bbf3a8ba37003bfa8a94de7b4a897.exe

  • Size

    512KB

  • MD5

    98f301cd10d00c0589ce4eac2aeedbe8

  • SHA1

    3e037527daff53fb682ed15d316bc504854456ef

  • SHA256

    c107c43e399a73d8c6e3914c167af827779bbf3a8ba37003bfa8a94de7b4a897

  • SHA512

    700897ed6ebfd1b26f1b44b09e59acf1ffd1557bc626aa588bbee4ba5b65eae3bb4a93c1a59b10bbbeda5e85b31bfe4dab27f7ef6994481f4e41ec8620dd0042

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4k:0+h9OY70z+warul3E4k

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\c107c43e399a73d8c6e3914c167af827779bbf3a8ba37003bfa8a94de7b4a897.exe
    "C:\Users\Admin\AppData\Local\Temp\c107c43e399a73d8c6e3914c167af827779bbf3a8ba37003bfa8a94de7b4a897.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:2760
    • C:\Users\Admin\AppData\Local\Temp\n5037\s5037.exe
      "C:\Users\Admin\AppData\Local\Temp\n5037\s5037.exe" 72ffc77d9252a721037f2b395AgYT96dW7nVn9HEv1LPmVF3hyFmRd+Zgb02OqGjWzYzdgyTzVgt4cDv+eJK8g7FAx2YevMhTq3zCLvUQUIx6L8oiOPytxVuyqPXWeAuXLeNJ7+FooZqvzWmBfDEAX4fHH7F46fdBhnvceBoY9ZPqmMX /v "C:\Users\Admin\AppData\Local\Temp\c107c43e399a73d8c6e3914c167af827779bbf3a8ba37003bfa8a94de7b4a897.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:2200

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n5037\s5037.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n5037\s5037.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/2200-132-0x0000000000000000-mapping.dmp

  • memory/2200-135-0x00007FF99AFA0000-0x00007FF99B9D6000-memory.dmp

    Filesize

    10.2MB

  • memory/2200-136-0x000000000139A000-0x000000000139F000-memory.dmp

    Filesize

    20KB

  • memory/2200-137-0x000000000139A000-0x000000000139F000-memory.dmp

    Filesize

    20KB