Analysis

  • max time kernel
    147s
  • max time network
    165s
  • 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 17:17

General

  • Target

    25c7e2f3162c77ca9ae49efad7594be1f8e3e3dba80296a52f34af2cf8c3c5f2.exe

  • Size

    512KB

  • MD5

    349b73ee760dcd10da3bd7963a74938b

  • SHA1

    e8fb29a3bdba4056c3a8fe4fb8f61a961bf7567e

  • SHA256

    25c7e2f3162c77ca9ae49efad7594be1f8e3e3dba80296a52f34af2cf8c3c5f2

  • SHA512

    e27fa0c0f946c9bf2e74c11a9f0b442dcb5a40d4ecb3cb97531213fda7d8a251176886c54af12e357bbc0263d444a5fe329abe9aa66b83738c436319c8b8c87d

  • SSDEEP

    12288:0+h9St2Ma70zIIc91Dwws4zruXic2O/3E48:0+h9OY70z+warul3E48

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\25c7e2f3162c77ca9ae49efad7594be1f8e3e3dba80296a52f34af2cf8c3c5f2.exe
    "C:\Users\Admin\AppData\Local\Temp\25c7e2f3162c77ca9ae49efad7594be1f8e3e3dba80296a52f34af2cf8c3c5f2.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:4336
    • C:\Users\Admin\AppData\Local\Temp\n8770\s8770.exe
      "C:\Users\Admin\AppData\Local\Temp\n8770\s8770.exe" 1d87cad3f3ba5dd928aa193bbnpALBml5MSzYhYu9TVtaF9T3nc937IQSaFh8wEOgSwbifGgHZdNrFz1jymNrJU5gf5htNTRUL1HCSGOoUQ87hULZd/vKsb/JneOMQHqvWX+QKIoAZfdAA857WQIh9NUzTuJSLo6WfX8HLrEJ47NHlxa /v "C:\Users\Admin\AppData\Local\Temp\25c7e2f3162c77ca9ae49efad7594be1f8e3e3dba80296a52f34af2cf8c3c5f2.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:1700

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n8770\s8770.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • C:\Users\Admin\AppData\Local\Temp\n8770\s8770.exe

    Filesize

    230KB

    MD5

    abaf13cb23de482dc944ab5b51ca3aac

    SHA1

    76837356db96dd56b647aba60f1adbbdc7b200fe

    SHA256

    b02fad5ac5234401505e1682c86f526951e8ded726687088c30987321f7c105e

    SHA512

    cc2aac30490511e49e1268f5df9139d176a3b849e663ad3b739e2f1cb50a6e084c465772ded5f694d5ec6f19ac40a57e5e64f7c47515f212476c20cbe9d6bce3

  • memory/1700-132-0x0000000000000000-mapping.dmp

  • memory/1700-136-0x00000000016AA000-0x00000000016AF000-memory.dmp

    Filesize

    20KB

  • memory/1700-137-0x00000000016AA000-0x00000000016AF000-memory.dmp

    Filesize

    20KB

  • memory/1700-138-0x00000000016AA000-0x00000000016AF000-memory.dmp

    Filesize

    20KB