Analysis

  • max time kernel
    96s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    02-05-2022 15:27

General

  • Target

    8d8189be1b0316c9813c3b6afa81fd77a39959e2842df2b1685d47fbdb1ffce2.exe

  • Size

    2.0MB

  • MD5

    21a60f9a35710aaff16f976381c0ecfc

  • SHA1

    f4f85f976667e97ca676b3509906fd73dcc5cf17

  • SHA256

    8d8189be1b0316c9813c3b6afa81fd77a39959e2842df2b1685d47fbdb1ffce2

  • SHA512

    7f9b3d32de4c3e3e5afb05633641e99c0df6f0846afb8455c24804fdb923725ce7cd503fae12e2f9ba72a6f02698badf01aafeceb9372abf0f8e5f01130def72

Malware Config

Signatures

  • MassLogger

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

  • MassLogger Main Payload 1 IoCs
  • Checks computer location settings 2 TTPs 1 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 42 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 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\8d8189be1b0316c9813c3b6afa81fd77a39959e2842df2b1685d47fbdb1ffce2.exe
    "C:\Users\Admin\AppData\Local\Temp\8d8189be1b0316c9813c3b6afa81fd77a39959e2842df2b1685d47fbdb1ffce2.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2052
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
      "Powershell" Add-MpPreference -ExclusionPath '"C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\VideoLAN\vlc.exe"'
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1376
    • C:\Users\Admin\AppData\Local\Temp\8d8189be1b0316c9813c3b6afa81fd77a39959e2842df2b1685d47fbdb1ffce2.exe
      "C:\Users\Admin\AppData\Local\Temp\8d8189be1b0316c9813c3b6afa81fd77a39959e2842df2b1685d47fbdb1ffce2.exe"
      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:2300

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\8d8189be1b0316c9813c3b6afa81fd77a39959e2842df2b1685d47fbdb1ffce2.exe.log

    Filesize

    226B

    MD5

    916851e072fbabc4796d8916c5131092

    SHA1

    d48a602229a690c512d5fdaf4c8d77547a88e7a2

    SHA256

    7e750c904c43d27c89e55af809a679a96c0bb63fc511006ffbceffc2c7f6fb7d

    SHA512

    07ce4c881d6c411cac0b62364377e77950797c486804fb10d00555458716e3c47b1efc0d1f37e4cc3b7e6565bb402ca01c7ea8c963f9f9ace941a6e3883d2521

  • memory/1376-148-0x0000000007420000-0x000000000742A000-memory.dmp

    Filesize

    40KB

  • memory/1376-131-0x0000000000000000-mapping.dmp

  • memory/1376-143-0x0000000006680000-0x00000000066B2000-memory.dmp

    Filesize

    200KB

  • memory/1376-155-0x00000000076D0000-0x00000000076D8000-memory.dmp

    Filesize

    32KB

  • memory/1376-144-0x00000000708B0000-0x00000000708FC000-memory.dmp

    Filesize

    304KB

  • memory/1376-136-0x0000000005330000-0x0000000005958000-memory.dmp

    Filesize

    6.2MB

  • memory/1376-137-0x0000000005160000-0x0000000005182000-memory.dmp

    Filesize

    136KB

  • memory/1376-145-0x0000000004DD0000-0x0000000004DEE000-memory.dmp

    Filesize

    120KB

  • memory/1376-139-0x00000000059D0000-0x0000000005A36000-memory.dmp

    Filesize

    408KB

  • memory/1376-140-0x00000000060A0000-0x00000000060BE000-memory.dmp

    Filesize

    120KB

  • memory/1376-154-0x00000000076F0000-0x000000000770A000-memory.dmp

    Filesize

    104KB

  • memory/1376-153-0x00000000075E0000-0x00000000075EE000-memory.dmp

    Filesize

    56KB

  • memory/1376-133-0x0000000002720000-0x0000000002756000-memory.dmp

    Filesize

    216KB

  • memory/1376-149-0x0000000007620000-0x00000000076B6000-memory.dmp

    Filesize

    600KB

  • memory/1376-138-0x0000000005960000-0x00000000059C6000-memory.dmp

    Filesize

    408KB

  • memory/1376-146-0x0000000007A10000-0x000000000808A000-memory.dmp

    Filesize

    6.5MB

  • memory/1376-147-0x0000000007350000-0x000000000736A000-memory.dmp

    Filesize

    104KB

  • memory/2052-130-0x0000000000090000-0x000000000028E000-memory.dmp

    Filesize

    2.0MB

  • memory/2300-132-0x0000000000000000-mapping.dmp

  • memory/2300-150-0x0000000007230000-0x0000000007280000-memory.dmp

    Filesize

    320KB

  • memory/2300-151-0x0000000007460000-0x00000000074FC000-memory.dmp

    Filesize

    624KB

  • memory/2300-152-0x0000000007200000-0x000000000720A000-memory.dmp

    Filesize

    40KB

  • memory/2300-142-0x0000000005FE0000-0x0000000006584000-memory.dmp

    Filesize

    5.6MB

  • memory/2300-141-0x0000000005990000-0x0000000005A22000-memory.dmp

    Filesize

    584KB

  • memory/2300-134-0x0000000000400000-0x0000000000486000-memory.dmp

    Filesize

    536KB