Overview

overview

10

Static

static

a369d13217...5a.exe

windows7_x64

3

a369d13217...5a.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    129s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    20-05-2022 23:54

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General

  • Target

    a369d1321703dce354cfcb0f57106a7ec1bcdcafe7f9fe00a63bbbdf38aa105a.exe

  • Size

    819KB

  • MD5

    132b58b929bda60a63b4e31e734259db

  • SHA1

    7b5562475375ff2e2b28713a650777e6bdba6952

  • SHA256

    a369d1321703dce354cfcb0f57106a7ec1bcdcafe7f9fe00a63bbbdf38aa105a

  • SHA512

    0e2f32cee15498f81fad6772cf44b7033de00815f619b46a3d3164d50be7a10ea47a934f79a9ad372470adef6013e8222139d6646cb0413bc0ff5021302921bb

Score
10/10
massloggercollectionevasionransomwarespywarestealer

Malware Config

Extracted

Path

C:\Users\Admin\AppData\Local\F95B724EDE\Log.txt

Family

masslogger

Ransom Note
<|| v2.1.0.0 ||> User Name: Admin IP: 154.61.71.50 Location: United States Windows OS: Microsoft Windows 10 Pro 64bit Windows Serial Key: W269N-WFGWX-YVC9B-4J6C9-T83GX CPU: Intel Core Processor (Broadwell) GPU: Microsoft Basic Display Adapter AV: NA Screen Resolution: 1280x720 Current Time: 5/21/2022 2:01:14 AM MassLogger Started: 5/21/2022 2:01:09 AM Interval: 2 hour MassLogger Process: C:\Users\Admin\AppData\Local\Temp\a369d1321703dce354cfcb0f57106a7ec1bcdcafe7f9fe00a63bbbdf38aa105a.exe MassLogger Melt: false MassLogger Exit after delivery: false As Administrator: True Processes: <|| WD Exclusion ||> Disabled <|| Binder ||> Disabled <|| Downloader ||> Disabled <|| Window Searcher ||> Disabled <|| Bot Killer ||> Disabled <|| Search And Upload ||> Disabled <|| Telegram Desktop ||> Not Installed <|| Pidgin ||> Not Installed <|| FileZilla ||> Not Installed <|| Discord Tokken ||> Not Installed <|| NordVPN ||> Not Installed <|| Outlook ||> Not Installed <|| FoxMail ||> Not Installed <|| Thunderbird ||> Not Installed <|| FireFox ||> Not Found <|| QQ Browser ||> Not Installed <|| Chromium Recovery ||> Not Installed or Not Found <|| Keylogger And Clipboard ||> NA

Signatures

  • MassLogger

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

    stealerspywaremasslogger
  • MassLogger log file 1 IoCs

    Detects a log file produced by MassLogger.

  • Modifies visibility of file extensions in Explorer 2 TTPs
    evasion
  • 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.

    spywarestealer
  • Accesses Microsoft Outlook profiles 1 TTPs 42 IoCs
    collection
  • 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.

    persistence
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\a369d1321703dce354cfcb0f57106a7ec1bcdcafe7f9fe00a63bbbdf38aa105a.exe
    "C:\Users\Admin\AppData\Local\Temp\a369d1321703dce354cfcb0f57106a7ec1bcdcafe7f9fe00a63bbbdf38aa105a.exe"
    1⤵
    • Checks computer location settings
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:5056
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\YyxkgULjBFG" /XML "C:\Users\Admin\AppData\Local\Temp\tmp319F.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:4452
    • C:\Users\Admin\AppData\Local\Temp\a369d1321703dce354cfcb0f57106a7ec1bcdcafe7f9fe00a63bbbdf38aa105a.exe
      "{path}"
      2⤵
        PID:1656
      • C:\Users\Admin\AppData\Local\Temp\a369d1321703dce354cfcb0f57106a7ec1bcdcafe7f9fe00a63bbbdf38aa105a.exe
        "{path}"
        2⤵
          PID:3948
        • C:\Users\Admin\AppData\Local\Temp\a369d1321703dce354cfcb0f57106a7ec1bcdcafe7f9fe00a63bbbdf38aa105a.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:2476

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\a369d1321703dce354cfcb0f57106a7ec1bcdcafe7f9fe00a63bbbdf38aa105a.exe.log
        Filesize

        1KB

        MD5

        8ec831f3e3a3f77e4a7b9cd32b48384c

        SHA1

        d83f09fd87c5bd86e045873c231c14836e76a05c

        SHA256

        7667e538030e3f8ce2886e47a01af24cb0ea70528b1e821c5d8832c5076cb982

        SHA512

        26bffa2406b66368bd412bf25869a792631455645992cdcade2dbc13a2e56fb546414a6a9223b94c96c38d89187add6678d4779a88b38b0c9e36be8527b213c3

        Download Submit

      • C:\Users\Admin\AppData\Local\Temp\tmp319F.tmp
        Filesize

        1KB

        MD5

        484a5e8e295d38f4aee712ff2ff4a4f4

        SHA1

        da2df0ec13c6d5a68ef8f0c86aae40265d6e797d

        SHA256

        c090070d84a806d7c3f7a47c1e8b86114fe4f83111b6916e5d96d35dfb0af058

        SHA512

        3fdd1e81b1b62b8d59b792d4708d1ad80c98baa5357d7c1e075970faa9021496f7a8c52c7707f9fb648c52af69256f88fd7ef3d5b8a00bda052ddd97be308a58

        Download Submit

      • memory/1656-137-0x0000000000000000-mapping.dmp

        Download

      • memory/2476-139-0x0000000000000000-mapping.dmp

        Download

      • memory/2476-140-0x0000000000400000-0x000000000049A000-memory.dmp

        Filesize

        616KB

        Download

      • memory/2476-142-0x00000000057B0000-0x0000000005816000-memory.dmp

        Filesize

        408KB

        Download

      • memory/2476-143-0x0000000007ED0000-0x0000000007F20000-memory.dmp

        Filesize

        320KB

        Download

      • memory/3948-138-0x0000000000000000-mapping.dmp

        Download

      • memory/4452-135-0x0000000000000000-mapping.dmp

        Download

      • memory/5056-134-0x00000000072C0000-0x000000000735C000-memory.dmp

        Filesize

        624KB

        Download

      • memory/5056-133-0x0000000004AA0000-0x0000000004AAA000-memory.dmp

        Filesize

        40KB

        Download

      • memory/5056-132-0x0000000004B30000-0x0000000004BC2000-memory.dmp

        Filesize

        584KB

        Download

      • memory/5056-130-0x0000000000010000-0x00000000000E4000-memory.dmp

        Filesize

        848KB

        Download

      • memory/5056-131-0x0000000005040000-0x00000000055E4000-memory.dmp

        Filesize

        5.6MB

        Download