Analysis

  • max time kernel
    77s
  • max time network
    80s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-01-2023 21:28

General

  • Target

    9269aa26ade2e9c4bff249a124c2f6c5a4ee0995045e01a15df8e60fcbbe3188.exe

  • Size

    770KB

  • MD5

    56dcde922cfb9bc2a36cb22feadf8194

  • SHA1

    443b8324de94cb2ae9976e3fbaf3676738e25697

  • SHA256

    9269aa26ade2e9c4bff249a124c2f6c5a4ee0995045e01a15df8e60fcbbe3188

  • SHA512

    aca07f602fd0af30938839be8e603691d6b080533becb5682ab005838d97b480d95ca9b6bc5efec796e40efd524b847cdfaec07049842c2529482e40a002d684

  • SSDEEP

    12288:JlOQfTlI9kETyESfxiZX43sBY1sCnY5eb3VTuRaWj1daHKy+NqU2Rpy:JlO+I3mxiZXlKnYwDp9+yKDMU2Ty

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.porathacorp.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    susila@22

Signatures

  • MassLogger

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

  • MassLogger Main payload 6 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • 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 35 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 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9269aa26ade2e9c4bff249a124c2f6c5a4ee0995045e01a15df8e60fcbbe3188.exe
    "C:\Users\Admin\AppData\Local\Temp\9269aa26ade2e9c4bff249a124c2f6c5a4ee0995045e01a15df8e60fcbbe3188.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1132
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BmDmBjcGWDrHqK" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA8BE.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2024
    • C:\Users\Admin\AppData\Local\Temp\9269aa26ade2e9c4bff249a124c2f6c5a4ee0995045e01a15df8e60fcbbe3188.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
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1992
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\9269aa26ade2e9c4bff249a124c2f6c5a4ee0995045e01a15df8e60fcbbe3188.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:524
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\9269aa26ade2e9c4bff249a124c2f6c5a4ee0995045e01a15df8e60fcbbe3188.exe'
        3⤵
        • Deletes itself
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1940

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpA8BE.tmp

    Filesize

    1KB

    MD5

    6f521bb7aa2e5ef8f040302de3b8bf6c

    SHA1

    500367e170cb877394585fc19c4f551943aa8a8f

    SHA256

    cb53453e68adaf6488ebf8b8ec9c46fd6f37a2f56f48838b178757254969b014

    SHA512

    1730d0c221001062593da17be7593ea9463c84d4731f0338ce9c6bc2742ee719f4988fe0a5ae68cd626bfac1f725a3c08a9e048aa8e70e17b660a03c8acba12c

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

    Filesize

    7KB

    MD5

    692696408610e15adc9a709329a0f8be

    SHA1

    5b6f6287f97f5af966801a8377e40704f03da27e

    SHA256

    ca944a0ace083b552a573710e5bfa1b7de58c4acd3addb795f039c76347f23db

    SHA512

    79143ba5c03c737b824c0e3e832a6e1ad4972fce02309f23b4cefc5de68b0cb42e946fbc9f7fa32524ae880cd399981e4b8c2cf81dc2a5fd2c9876cfaeb8be23

  • memory/524-78-0x000000006EDD0000-0x000000006F37B000-memory.dmp

    Filesize

    5.7MB

  • memory/524-77-0x000000006EDD0000-0x000000006F37B000-memory.dmp

    Filesize

    5.7MB

  • memory/1132-55-0x0000000075FB1000-0x0000000075FB3000-memory.dmp

    Filesize

    8KB

  • memory/1132-56-0x00000000004F0000-0x0000000000502000-memory.dmp

    Filesize

    72KB

  • memory/1132-57-0x0000000000840000-0x00000000008F4000-memory.dmp

    Filesize

    720KB

  • memory/1132-54-0x0000000000310000-0x00000000003DA000-memory.dmp

    Filesize

    808KB

  • memory/1940-83-0x000000006EC90000-0x000000006F23B000-memory.dmp

    Filesize

    5.7MB

  • memory/1940-82-0x000000006EC90000-0x000000006F23B000-memory.dmp

    Filesize

    5.7MB

  • memory/1992-60-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1992-70-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1992-68-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1992-74-0x00000000050B0000-0x00000000050EE000-memory.dmp

    Filesize

    248KB

  • memory/1992-75-0x0000000005EE0000-0x0000000005F70000-memory.dmp

    Filesize

    576KB

  • memory/1992-76-0x0000000004E25000-0x0000000004E36000-memory.dmp

    Filesize

    68KB

  • memory/1992-65-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1992-64-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1992-63-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB

  • memory/1992-61-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB