Analysis

  • max time kernel
    65s
  • max time network
    130s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 23:20

General

  • Target

    e27efe7cf681d50d80c32e61e22559bc6aa80634b30311306d32e7cb48968c73.exe

  • Size

    512KB

  • MD5

    5b84cf4d524c615c132d9440d1293ad1

  • SHA1

    aeb361c56429535ad8131fdd743e11a08e340cbd

  • SHA256

    e27efe7cf681d50d80c32e61e22559bc6aa80634b30311306d32e7cb48968c73

  • SHA512

    56926beb0e95156a459add050e83f4b45f72752b1e1be493a5c9343429b209e2ebbc3d6df94a2bb2b77cffb09b66f805002f45f23f625639d31db075bb2fb9d5

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E4G:0+h9OY70z+warul3E4G

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\e27efe7cf681d50d80c32e61e22559bc6aa80634b30311306d32e7cb48968c73.exe
    "C:\Users\Admin\AppData\Local\Temp\e27efe7cf681d50d80c32e61e22559bc6aa80634b30311306d32e7cb48968c73.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:4996
    • C:\Users\Admin\AppData\Local\Temp\n9041\s9041.exe
      "C:\Users\Admin\AppData\Local\Temp\n9041\s9041.exe" 391f2b52bf948467c57d4edalLQ9gNfLYDNxKXzvA5R+FCb46rMc5e/R7yn2TDkIeyBQ8qmRuva+4ZU2pofvM5UzLbws9hHTe5wAl9Vr06zqdPtkjM5nKRl+jiuTMdH+K173VN0iSMdj+SMBI+CVylE16VaAvXw/UO2dK7UusVF5YekM /v "C:\Users\Admin\AppData\Local\Temp\e27efe7cf681d50d80c32e61e22559bc6aa80634b30311306d32e7cb48968c73.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:544

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\n9041\s9041.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • C:\Users\Admin\AppData\Local\Temp\n9041\s9041.exe

          Filesize

          230KB

          MD5

          abaf13cb23de482dc944ab5b51ca3aac

          SHA1

          76837356db96dd56b647aba60f1adbbdc7b200fe

          SHA256

          b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

          SHA512

          cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

        • memory/544-135-0x00007FFAB5570000-0x00007FFAB5FA6000-memory.dmp

          Filesize

          10.2MB

        • memory/544-136-0x000000000156A000-0x000000000156F000-memory.dmp

          Filesize

          20KB

        • memory/544-137-0x000000000156A000-0x000000000156F000-memory.dmp

          Filesize

          20KB