Analysis

  • max time kernel
    103s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    26-09-2021 17:02

General

  • Target

    A4496847096F3B16C8CC2E743E48DABB687480F096384.exe

  • Size

    146KB

  • MD5

    d35bddd3a36c7f33e086db7464c817a4

  • SHA1

    9e05674466f0935a5b17031a2278f64809878033

  • SHA256

    a4496847096f3b16c8cc2e743e48dabb687480f096384605f8601aa23dd05a8e

  • SHA512

    423728567736c18ba050bc04116bb9a8615c5a24e89b9f5cc2d815ce778eaaedf17118814e82d5c804fcf2b0fd1bb3aa8e333588b3712ddb690395816752a4e1

Score
8/10

Malware Config

Signatures

  • Executes dropped EXE 1 IoCs
  • Adds Run key to start application 2 TTPs 2 IoCs
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies registry key 1 TTPs 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\A4496847096F3B16C8CC2E743E48DABB687480F096384.exe
    "C:\Users\Admin\AppData\Local\Temp\A4496847096F3B16C8CC2E743E48DABB687480F096384.exe"
    1⤵
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:564
    • C:\ProgramData\IDT\svchost.exe
      "C:\ProgramData\IDT\svchost.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:996
      • C:\Windows\SYSTEM32\cmd.exe
        "cmd" /C REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v IDT /t REG_EXPAND_SZ /d "%PROGRAMDATA%\IDT\svchost.exe" /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:1628
        • C:\Windows\system32\reg.exe
          REG ADD HKCU\Software\Microsoft\Windows\CurrentVersion\Run /v IDT /t REG_EXPAND_SZ /d "C:\ProgramData\IDT\svchost.exe" /f
          4⤵
          • Adds Run key to start application
          • Modifies registry key
          PID:1764

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

2
T1112

Discovery

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\IDT\svchost.exe
    MD5

    d35bddd3a36c7f33e086db7464c817a4

    SHA1

    9e05674466f0935a5b17031a2278f64809878033

    SHA256

    a4496847096f3b16c8cc2e743e48dabb687480f096384605f8601aa23dd05a8e

    SHA512

    423728567736c18ba050bc04116bb9a8615c5a24e89b9f5cc2d815ce778eaaedf17118814e82d5c804fcf2b0fd1bb3aa8e333588b3712ddb690395816752a4e1

  • C:\ProgramData\IDT\svchost.exe
    MD5

    d35bddd3a36c7f33e086db7464c817a4

    SHA1

    9e05674466f0935a5b17031a2278f64809878033

    SHA256

    a4496847096f3b16c8cc2e743e48dabb687480f096384605f8601aa23dd05a8e

    SHA512

    423728567736c18ba050bc04116bb9a8615c5a24e89b9f5cc2d815ce778eaaedf17118814e82d5c804fcf2b0fd1bb3aa8e333588b3712ddb690395816752a4e1

  • memory/564-114-0x00000237465E0000-0x00000237465E1000-memory.dmp
    Filesize

    4KB

  • memory/996-129-0x0000022D883F0000-0x0000022D883F2000-memory.dmp
    Filesize

    8KB

  • memory/996-121-0x0000022DA2B02000-0x0000022DA2B03000-memory.dmp
    Filesize

    4KB

  • memory/996-122-0x0000022D87F50000-0x0000022D87F60000-memory.dmp
    Filesize

    64KB

  • memory/996-123-0x0000022D88020000-0x0000022D88044000-memory.dmp
    Filesize

    144KB

  • memory/996-126-0x0000022D880F0000-0x0000022D880F3000-memory.dmp
    Filesize

    12KB

  • memory/996-127-0x0000022D88390000-0x0000022D88394000-memory.dmp
    Filesize

    16KB

  • memory/996-128-0x0000022D883A0000-0x0000022D883A5000-memory.dmp
    Filesize

    20KB

  • memory/996-116-0x0000000000000000-mapping.dmp
  • memory/996-130-0x0000022D89C60000-0x0000022D89CE9000-memory.dmp
    Filesize

    548KB

  • memory/996-131-0x0000022D89C20000-0x0000022D89C2C000-memory.dmp
    Filesize

    48KB

  • memory/996-132-0x0000022DA2B03000-0x0000022DA2B04000-memory.dmp
    Filesize

    4KB

  • memory/1628-124-0x0000000000000000-mapping.dmp
  • memory/1764-125-0x0000000000000000-mapping.dmp