Analysis

  • max time kernel
    90s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 03:36

General

  • Target

    Inquiry -Batenburg Bevestigingstechnie QO202000182________________________pdf.exe

  • Size

    864KB

  • MD5

    174bc3327e9eaad09baff6bbfae225b0

  • SHA1

    188400f03c706a49ebdbb1970fc35f78147c69da

  • SHA256

    6b287b9b3200533c490357e28b5e9c65856740c2a63c32dae9bd50b042557664

  • SHA512

    f33a07376bbacca4b17791805f93da524f4ebe7bba08859654e300e5ac7f9239f6690f5323d3697b4db07a9671cdae885f08b38f3ea8511fd1b41631539f3aa6

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    money123@@@

Signatures

  • MassLogger

    Masslogger is a .NET stealer targeting passwords from browsers, email and cryptocurrency clients.

  • MassLogger Main Payload 32 IoCs
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Checks computer location settings 2 TTPs 2 IoCs

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

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses Microsoft Outlook profiles 1 TTPs 18 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Inquiry -Batenburg Bevestigingstechnie QO202000182________________________pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Inquiry -Batenburg Bevestigingstechnie QO202000182________________________pdf.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4876
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\NcWHnUdwWgUd" /XML "C:\Users\Admin\AppData\Local\Temp\tmpE58.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1940
    • C:\Users\Admin\AppData\Local\Temp\Inquiry -Batenburg Bevestigingstechnie QO202000182________________________pdf.exe
      "{path}"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Suspicious behavior: AddClipboardFormatListener
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • outlook_office_path
      • outlook_win_path
      PID:3988

Network

MITRE ATT&CK Matrix ATT&CK v6

Execution

Scheduled Task

1
T1053

Persistence

Scheduled Task

1
T1053

Privilege Escalation

Scheduled Task

1
T1053

Credential Access

Credentials in Files

1
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

1
T1005

Email Collection

1
T1114

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Inquiry -Batenburg Bevestigingstechnie QO202000182________________________pdf.exe.log
    Filesize

    1KB

    MD5

    8ec831f3e3a3f77e4a7b9cd32b48384c

    SHA1

    d83f09fd87c5bd86e045873c231c14836e76a05c

    SHA256

    7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

    SHA512

    26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

  • C:\Users\Admin\AppData\Local\Temp\tmpE58.tmp
    Filesize

    1KB

    MD5

    e1fc86214613a292a4f208856bb2e80f

    SHA1

    fbace76a04aefed5329e4c893b5bf4bda6066bb3

    SHA256

    5113d4c215fc997928a2c88aa5d01b47827777516d7709a3edec2641ea12120a

    SHA512

    160b7af7da735a8e34a2a6b0c52c05e3099eb14b04a17b4810b39e78ccbe216aec316f641bd30e99e4fc394f8c25a16afdb35495d6bd7ddfbacadf194b6c12ed

  • memory/1940-135-0x0000000000000000-mapping.dmp
  • memory/3988-162-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-196-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-640-0x0000000007CA0000-0x0000000007CF0000-memory.dmp
    Filesize

    320KB

  • memory/3988-639-0x0000000006270000-0x00000000062D6000-memory.dmp
    Filesize

    408KB

  • memory/3988-137-0x0000000000000000-mapping.dmp
  • memory/3988-138-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-166-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-142-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-144-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-146-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-148-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-150-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-154-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-152-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-156-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-158-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-160-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-168-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-140-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-200-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-198-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-170-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-172-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-174-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-176-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-178-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-180-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-182-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-184-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-186-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-188-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-190-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-192-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-194-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/3988-164-0x0000000000400000-0x00000000004A6000-memory.dmp
    Filesize

    664KB

  • memory/4876-130-0x0000000000B10000-0x0000000000BEE000-memory.dmp
    Filesize

    888KB

  • memory/4876-134-0x00000000097B0000-0x000000000984C000-memory.dmp
    Filesize

    624KB

  • memory/4876-132-0x00000000055D0000-0x0000000005662000-memory.dmp
    Filesize

    584KB

  • memory/4876-133-0x00000000055A0000-0x00000000055AA000-memory.dmp
    Filesize

    40KB

  • memory/4876-131-0x0000000005AE0000-0x0000000006084000-memory.dmp
    Filesize

    5.6MB