Analysis

  • max time kernel
    88s
  • max time network
    104s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    08-05-2022 16:45

General

  • Target

    02ee841cf0dc2fdbe7df4b02336efe056e7c278681600eb3ab9b4bdde10bc340.exe

  • Size

    981KB

  • MD5

    6bf2cd8af0927301fce7c948e492c4cf

  • SHA1

    fe87f5c8bc208d4355ac56629fbb341d5eb69a75

  • SHA256

    02ee841cf0dc2fdbe7df4b02336efe056e7c278681600eb3ab9b4bdde10bc340

  • SHA512

    23aff091ab819d2dd221b61497675454b64491b91c66af9637b841221bd113fa9ff21d0018e8677b6b727d344a954c7d62ded39af67beae5175c6a8106966f3f

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    mail.natalmakina.com.tr
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    Nf--1264!!

Signatures

  • MassLogger

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

  • MassLogger Main Payload 2 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Deletes itself 1 IoCs
  • Drops startup file 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
  • Modifies system certificate store 2 TTPs 6 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 7 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\02ee841cf0dc2fdbe7df4b02336efe056e7c278681600eb3ab9b4bdde10bc340.exe
    "C:\Users\Admin\AppData\Local\Temp\02ee841cf0dc2fdbe7df4b02336efe056e7c278681600eb3ab9b4bdde10bc340.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1208
    • C:\Windows\SysWOW64\notepad.exe
      "C:\Windows\system32\notepad.exe"
      2⤵
      • Drops startup file
      PID:1996
    • C:\Users\Admin\AppData\Local\Temp\02ee841cf0dc2fdbe7df4b02336efe056e7c278681600eb3ab9b4bdde10bc340.exe
      "C:\Users\Admin\AppData\Local\Temp\02ee841cf0dc2fdbe7df4b02336efe056e7c278681600eb3ab9b4bdde10bc340.exe"
      2⤵
      • Checks computer location settings
      • Accesses Microsoft Outlook profiles
      • Modifies system certificate store
      • 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:1932
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\02ee841cf0dc2fdbe7df4b02336efe056e7c278681600eb3ab9b4bdde10bc340.exe'
        3⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:2032
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "powershell" Start-Sleep -Seconds 2; Remove-Item -path 'C:\Users\Admin\AppData\Local\Temp\02ee841cf0dc2fdbe7df4b02336efe056e7c278681600eb3ab9b4bdde10bc340.exe'
        3⤵
        • Deletes itself
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:860

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

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

    Filesize

    7KB

    MD5

    51d3e41731225607d4c7a38e4e1400bc

    SHA1

    0c8115cb1b339c5fce525ec9232764bd55ffa5f1

    SHA256

    1168997062d9df0d9a2319bef9b26e2b3746a213e68ab634b3b92d3c0f90fabb

    SHA512

    546ac6f47fbe798d019d6618cea0a79a23f1f6eefb25bff2dd61a9864da2587588717e0f5e11873d8db07dae5157481dc8c69ca8d38fb0895530233d52410f8d

  • memory/860-72-0x00000000743F0000-0x000000007499B000-memory.dmp

    Filesize

    5.7MB

  • memory/860-69-0x0000000000000000-mapping.dmp

  • memory/1208-54-0x0000000076191000-0x0000000076193000-memory.dmp

    Filesize

    8KB

  • memory/1208-56-0x0000000000280000-0x0000000000291000-memory.dmp

    Filesize

    68KB

  • memory/1932-67-0x0000000004C35000-0x0000000004C46000-memory.dmp

    Filesize

    68KB

  • memory/1932-65-0x0000000006350000-0x000000000638E000-memory.dmp

    Filesize

    248KB

  • memory/1932-66-0x00000000063C0000-0x0000000006450000-memory.dmp

    Filesize

    576KB

  • memory/1932-60-0x0000000001E10000-0x0000000001E96000-memory.dmp

    Filesize

    536KB

  • memory/1932-59-0x0000000001E10000-0x0000000001E96000-memory.dmp

    Filesize

    536KB

  • memory/1932-58-0x000000000051DCE0-mapping.dmp

  • memory/1996-57-0x0000000000000000-mapping.dmp

  • memory/2032-63-0x0000000000000000-mapping.dmp

  • memory/2032-68-0x000000006E800000-0x000000006EDAB000-memory.dmp

    Filesize

    5.7MB