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Analysis

  • max time kernel
    79s
  • 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, 11:22

General

  • Target

    8ecab003ccbe30df1ff8a3ff2d0e1186eb96b19cc3935f82c887a3e2f232ef9e.exe

  • Size

    614KB

  • MD5

    370b0f9fc92c58c0682b6f4f208b5280

  • SHA1

    d9f1418d42aee5df67c40da330964be2bd57382e

  • SHA256

    8ecab003ccbe30df1ff8a3ff2d0e1186eb96b19cc3935f82c887a3e2f232ef9e

  • SHA512

    a66f3bc177b88a3a5be99d89306d1b5d0b153fb4eb2ab9d32d0305e59b2a500a7caa1b4a9dc85e070a56a37b08c2c51c613448f57275ed840573a8edf66eb91c

  • SSDEEP

    12288:WRT0gZpHvuDZKHHw2WNWI0tTYbuMKu5R7Uw5JEAY+s:+ZpHSKHHw08b20UVAY+s

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\8ecab003ccbe30df1ff8a3ff2d0e1186eb96b19cc3935f82c887a3e2f232ef9e.exe
    "C:\Users\Admin\AppData\Local\Temp\8ecab003ccbe30df1ff8a3ff2d0e1186eb96b19cc3935f82c887a3e2f232ef9e.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:2296
    • C:\Users\Admin\AppData\Local\Temp\n8599\s8599.exe
      "C:\Users\Admin\AppData\Local\Temp\n8599\s8599.exe" 7bfa75b52904445eda3e5de0how5ydIPXhZ/QXU6V2XZFRh1K7lXmfM4yG9TBDsKyEjNIdI1FHzrX11oISKm5UW8M+6TXVrtI6lzn4yh1rK/ziSiPWRiIw4/5W4RWyiRVgtH+Z4sDEKiwjGq0NIYYX0dT/BIFANp8trqBd3pBlVJMaa9b7bIzw2Q0+VnvoI= /v "C:\Users\Admin\AppData\Local\Temp\8ecab003ccbe30df1ff8a3ff2d0e1186eb96b19cc3935f82c887a3e2f232ef9e.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:3064

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\n8599\s8599.exe

    Filesize

    350KB

    MD5

    54394ba7de5b2c5e3df92557ea95f014

    SHA1

    47a99735e089139495643c9027effcb6b1fc5504

    SHA256

    339f7dd54a1e07bfcabb5749047ef4ab615462213f5baaa62fb690c894bef1eb

    SHA512

    45928ffec4f1bf9a86469bb54f83ba6fdcd275ef9826bd923e890fce83d7a8f975c309bda4849d3f2d066ea458f23fa8e6aefe26be5e874249712462ecd69660

  • C:\Users\Admin\AppData\Local\Temp\n8599\s8599.exe

    Filesize

    350KB

    MD5

    54394ba7de5b2c5e3df92557ea95f014

    SHA1

    47a99735e089139495643c9027effcb6b1fc5504

    SHA256

    339f7dd54a1e07bfcabb5749047ef4ab615462213f5baaa62fb690c894bef1eb

    SHA512

    45928ffec4f1bf9a86469bb54f83ba6fdcd275ef9826bd923e890fce83d7a8f975c309bda4849d3f2d066ea458f23fa8e6aefe26be5e874249712462ecd69660

  • memory/3064-135-0x00007FFDE3250000-0x00007FFDE3C86000-memory.dmp

    Filesize

    10.2MB

  • memory/3064-136-0x000000000166A000-0x000000000166F000-memory.dmp

    Filesize

    20KB

  • memory/3064-137-0x000000000166A000-0x000000000166F000-memory.dmp

    Filesize

    20KB