Overview

overview

10

Static

static

CPA accoun...$).exe

windows7_x64

10

CPA accoun...$).exe

windows10-2004_x64

10

Analysis

  • max time kernel
    153s
  • max time network
    157s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:19

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General

  • Target

    CPA accountant COVID_19 pandemic relief (20,000$).exe

  • Size

    584KB

  • MD5

    1918fa86b99fda35462ec060e9c419bb

  • SHA1

    3d393d15044bd193851297bdc94c38f44a6e1fd2

  • SHA256

    a34bd4c266e3891796816854e78d62384dcf36a8f456476e69d0dacf109d1737

  • SHA512

    b6cae10db3ecd2bebb5b017c7a09f46ef5a6f9a84747419d0b041b4b6b6769b43e4e4df2454d38c15b58f3a4e10f9d60eb416a1ef3383f32f8d62fd6a09dc15e

Score
10/10
netwirebotnetpersistenceratstealer

Malware Config

Extracted

Family

netwire

C2

38.132.124.156:1199

Attributes
  • activex_autorun

    false

  • activex_key

  • copy_executable

    false

  • delete_original

    false

  • host_id

    HostId-%Rand%

  • install_path

  • keylogger_dir

    %AppData%\Logs\

  • lock_executable

    false

  • mutex

  • offline_keylogger

    true

  • password

    12345

  • registry_autorun

    true

  • startup_name

    ronies

  • use_mutex

    false

Signatures

  • NetWire RAT payload 3 IoCs
    rat
  • Netwire

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

    botnetstealernetwire
  • Executes dropped EXE 2 IoCs
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Checks processor information in registry 2 TTPs 3 IoCs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistence
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 11 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CPA accountant COVID_19 pandemic relief (20,000$).exe
    "C:\Users\Admin\AppData\Local\Temp\CPA accountant COVID_19 pandemic relief (20,000$).exe"
    1⤵
    • Checks computer location settings
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4316
    • C:\Users\Admin\AppData\Local\Temp\service.exe
      "C:\Users\Admin\AppData\Local\Temp\service.exe"
      2⤵
      • Executes dropped EXE
      • Checks computer location settings
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:5096
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\HRgFfvmwT" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC4F6.tmp"
        3⤵
        • Creates scheduled task(s)
        PID:216
      • C:\Users\Admin\AppData\Local\Temp\service.exe
        "C:\Users\Admin\AppData\Local\Temp\service.exe"
        3⤵
        • Executes dropped EXE
        • Adds Run key to start application
        PID:4872
    • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
      "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\CPA accountant COVID_19 pandemic relief (20,000$).docx" /o ""
      2⤵
      • Checks processor information in registry
      • Enumerates system info in registry
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious use of SetWindowsHookEx
      PID:5004

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1
T1053

Persistence

Registry Run Keys / Startup Folder

1
T1060

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

3
T1012

System Information Discovery

4
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\CPA accountant COVID_19 pandemic relief (20,000$).docx
    Filesize

    68KB

    MD5

    f5338a212a363459b7354fd8091d5501

    SHA1

    d5f79a7e7a664147f71dc58988462c51f489e16b

    SHA256

    9a62f34e8c12aeed7a693399f5d17676c9af7b50865f160fc7eb4d709c252583

    SHA512

    e033137c54ce92fec4d51f79d2cc79e6d6335060a1ba1f5ad0d30833749034c0c2c750e9cea9b654b1c36ea6cf67adddb08c0c165f46d75530cf7af1c1d81ab0

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\service.exe
    Filesize

    311KB

    MD5

    a69b9cf282c900d55cd7452e039daf41

    SHA1

    0ea752ca500e4b9df336cb4438e7804d3b0186ad

    SHA256

    3e2526d2955b6709532d1a16a221882619690292dce1527a3399a8d704a4c79d

    SHA512

    caa067276632186c0ef2e9bf821ad64aff680645a4d0436dac2cefa7aa99feb76cb6a52e672c325ba51783635388f32cd64c2a69f0aa52c1f8f37ab4d29d1765

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\service.exe
    Filesize

    311KB

    MD5

    a69b9cf282c900d55cd7452e039daf41

    SHA1

    0ea752ca500e4b9df336cb4438e7804d3b0186ad

    SHA256

    3e2526d2955b6709532d1a16a221882619690292dce1527a3399a8d704a4c79d

    SHA512

    caa067276632186c0ef2e9bf821ad64aff680645a4d0436dac2cefa7aa99feb76cb6a52e672c325ba51783635388f32cd64c2a69f0aa52c1f8f37ab4d29d1765

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\service.exe
    Filesize

    311KB

    MD5

    a69b9cf282c900d55cd7452e039daf41

    SHA1

    0ea752ca500e4b9df336cb4438e7804d3b0186ad

    SHA256

    3e2526d2955b6709532d1a16a221882619690292dce1527a3399a8d704a4c79d

    SHA512

    caa067276632186c0ef2e9bf821ad64aff680645a4d0436dac2cefa7aa99feb76cb6a52e672c325ba51783635388f32cd64c2a69f0aa52c1f8f37ab4d29d1765

    Download Submit
  • C:\Users\Admin\AppData\Local\Temp\tmpC4F6.tmp
    Filesize

    1KB

    MD5

    eff579e5fc87c2f9fee0fa3c069e3467

    SHA1

    2e96a30600227dd3de6dd785a03a8677020608e2

    SHA256

    47251f00a39b3d2f3265eb41dd0847abd2e4cf690e0657250f51f7edadf196ef

    SHA512

    448732d4bac8d4feaf7dbf2a9894467201801a1af0e73fe52e88ba55fc72e72a9468820eba726cc83bc77f8b7a09c761b9dfb7024b02846e7d6a7344475c4273

    Download Submit
  • memory/216-140-0x0000000000000000-mapping.dmp
    Download
  • memory/4872-146-0x0000000000400000-0x0000000000433000-memory.dmp
    Filesize

    204KB

    Download
  • memory/4872-147-0x0000000000400000-0x0000000000433000-memory.dmp
    Filesize

    204KB

    Download
  • memory/4872-143-0x0000000000400000-0x0000000000433000-memory.dmp
    Filesize

    204KB

    Download
  • memory/4872-142-0x0000000000000000-mapping.dmp
    Download
  • memory/5004-136-0x00007FF901770000-0x00007FF901780000-memory.dmp
    Filesize

    64KB

    Download
  • memory/5004-135-0x00007FF901770000-0x00007FF901780000-memory.dmp
    Filesize

    64KB

    Download
  • memory/5004-139-0x00007FF901770000-0x00007FF901780000-memory.dmp
    Filesize

    64KB

    Download
  • memory/5004-138-0x00007FF901770000-0x00007FF901780000-memory.dmp
    Filesize

    64KB

    Download
  • memory/5004-137-0x00007FF901770000-0x00007FF901780000-memory.dmp
    Filesize

    64KB

    Download
  • memory/5004-148-0x00007FF8FF710000-0x00007FF8FF720000-memory.dmp
    Filesize

    64KB

    Download
  • memory/5004-149-0x00007FF8FF710000-0x00007FF8FF720000-memory.dmp
    Filesize

    64KB

    Download
  • memory/5004-133-0x0000000000000000-mapping.dmp
    Download
  • memory/5096-134-0x0000000073060000-0x0000000073611000-memory.dmp
    Filesize

    5.7MB

    Download
  • memory/5096-130-0x0000000000000000-mapping.dmp
    Download