Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    26-05-2024 22:36

General

  • Target

    PO28466311.exe

  • Size

    1.2MB

  • MD5

    052f8ea1a01cb3a6b7df01bfd3868601

  • SHA1

    2f75dafd4572c02109d275268534f4935babbe4e

  • SHA256

    2c7ac0a31c8828ec11ad0c9dd80f8809fb1248f5c36b6b34d8c9974aa8ecaa06

  • SHA512

    f082bdc3eaa1e0383c274aadb03e6c01e0591020cb4107cd072c80fe24e76afafddc4a535a676269efc2c4d3808d7d09faded812211a8e214dec064c02fefe29

  • SSDEEP

    12288:oS1QbvgWK5WpLzkQgEuWjzikA1SNuD4cFwJEV6Q576QpVu6kxuCj9Rm:hQbvxaWuQgEfzi1DdFwGBdpUxuCjHm

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.

  • Loads dropped DLL 1 IoCs
  • Obfuscated with Agile.Net obfuscator 33 IoCs

    Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

  • 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO28466311.exe
    "C:\Users\Admin\AppData\Local\Temp\PO28466311.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2372
    • C:\Users\Admin\AppData\Local\Temp\PO28466311.exe
      "C:\Users\Admin\AppData\Local\Temp\PO28466311.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:2904

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • \Users\Admin\AppData\Local\Temp\c08e67e7-d17e-42f4-84a8-059771d01a58\AgileDotNetRT.dll

    Filesize

    94KB

    MD5

    14ff402962ad21b78ae0b4c43cd1f194

    SHA1

    f8a510eb26666e875a5bdd1cadad40602763ad72

    SHA256

    fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

    SHA512

    daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

  • memory/2372-36-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-12-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-3-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2372-1-0x0000000000E50000-0x0000000000F86000-memory.dmp

    Filesize

    1.2MB

  • memory/2372-50-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-62-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-34-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-72-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-70-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-68-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-66-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-64-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-60-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-58-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-38-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-54-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-52-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-48-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-46-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-44-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-42-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-40-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-56-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-187-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2372-16-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-30-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-28-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-26-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-24-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-22-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-20-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-18-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-32-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-14-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-2-0x00000000005C0000-0x00000000005E8000-memory.dmp

    Filesize

    160KB

  • memory/2372-11-0x00000000005C0000-0x00000000005E1000-memory.dmp

    Filesize

    132KB

  • memory/2372-10-0x0000000074070000-0x00000000740F0000-memory.dmp

    Filesize

    512KB

  • memory/2372-169-0x000000007427E000-0x000000007427F000-memory.dmp

    Filesize

    4KB

  • memory/2372-170-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2372-171-0x0000000000A20000-0x0000000000A2A000-memory.dmp

    Filesize

    40KB

  • memory/2372-0-0x000000007427E000-0x000000007427F000-memory.dmp

    Filesize

    4KB

  • memory/2904-186-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2904-183-0x0000000000400000-0x00000000004C0000-memory.dmp

    Filesize

    768KB

  • memory/2904-184-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2904-185-0x0000000000CD0000-0x0000000000D48000-memory.dmp

    Filesize

    480KB

  • memory/2904-188-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB

  • memory/2904-189-0x0000000000B10000-0x0000000000B24000-memory.dmp

    Filesize

    80KB

  • memory/2904-201-0x0000000074270000-0x000000007495E000-memory.dmp

    Filesize

    6.9MB