Overview

overview

10

Static

static

10

Invoice Co...on.exe

windows7_x64

10

Invoice Co...on.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    176s
  • max time network
    203s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-en-20220113
  • submitted
    08/02/2022, 01:23

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General

  • Target

    Invoice Confirmation.exe

  • Size

    532KB

  • MD5

    ddba3b95498cd1cb484ac05fcc362309

  • SHA1

    25589926b5c189b8bee1c942839993c966c2a48a

  • SHA256

    6d1939969f1763fa1f69073ed09fa37d443fd3a6739584bf5943ca8e54963023

  • SHA512

    01db638e872d7f257a30586f989802e1d17f0c5aea06ac6d19939fef2e507e7bcd2e7fa07589d39f3e2a166ed1a900d4869be86a876c58dcf3f34c5efdd53cae

Score
10/10
kutakikeyloggerstealer

Malware Config

Signatures

  • Kutaki

    Information stealer and keylogger that hides inside legitimate Visual Basic applications.

    stealerkeyloggerkutaki
  • Kutaki Executable 2 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 startup file 2 IoCs
  • Drops file in Windows directory 9 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks SCSI registry key(s) 3 TTPs 64 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Modifies data under HKEY_USERS 2 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Invoice Confirmation.exe
    "C:\Users\Admin\AppData\Local\Temp\Invoice Confirmation.exe"
    1⤵
    • Drops startup file
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4680
    • C:\Windows\SysWOW64\cmd.exe
      cmd.exe /c C:\Users\Admin\AppData\Local\Temp\Receipt.bmp
      2⤵
      • Checks computer location settings
      • Modifies registry class
      • Suspicious use of WriteProcessMemory
      PID:3620
      • C:\Windows\SysWOW64\mspaint.exe
        "C:\Windows\system32\mspaint.exe" "C:\Users\Admin\AppData\Local\Temp\Receipt.bmp"
        3⤵
        • Drops file in Windows directory
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of SetWindowsHookEx
        PID:4084
    • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xwzytjch.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\xwzytjch.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetWindowsHookEx
      PID:2804
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k LocalSystemNetworkRestricted -p -s DeviceAssociationService
    1⤵
      PID:4768
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s DsmSvc
      1⤵
      • Checks SCSI registry key(s)
      • Modifies data under HKEY_USERS
      PID:4200
    • C:\Windows\System32\svchost.exe
      C:\Windows\System32\svchost.exe -k netsvcs -p -s BITS
      1⤵
      • Modifies data under HKEY_USERS
      PID:2248
    • C:\Windows\system32\svchost.exe
      C:\Windows\system32\svchost.exe -k netsvcs -p -s wuauserv
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:4820
    • C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe
      C:\Windows\winsxs\amd64_microsoft-windows-servicingstack_31bf3856ad364e35_10.0.19041.1220_none_7e21bc567c7ed16b\TiWorker.exe -Embedding
      1⤵
      • Drops file in Windows directory
      • Suspicious use of AdjustPrivilegeToken
      PID:2624

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

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    Downloads

    • memory/2248-138-0x000001E6A5D80000-0x000001E6A5D90000-memory.dmp

      Filesize

      64KB

      Download

    • memory/2248-139-0x000001E6A8130000-0x000001E6A8134000-memory.dmp

      Filesize

      16KB

      Download

    • memory/4820-144-0x0000021008150000-0x0000021008160000-memory.dmp

      Filesize

      64KB

      Download

    • memory/4820-151-0x000002100AED0000-0x000002100AED4000-memory.dmp

      Filesize

      16KB

      Download