Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240426-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-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 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 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 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:688
    • 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:4900

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\PO28466311.exe.log

    Filesize

    1KB

    MD5

    fc13935f3038bdde6cb484249fbff668

    SHA1

    a4c32013e6d59bf1eb1a5119456965de191e62b8

    SHA256

    de064c569a5f4edaf2da91d7bcb82bab06a35190b699cede1da0aa616a23d676

    SHA512

    5817275af0f8a48eb1e008d39f62fb3582db9a2d21a806e9f9ee36fbfd799fb17e91f0e3686f4b236724fe78f14ae7f40cd3755f0ec0fb6734ce42f996b798f7

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

    Filesize

    94KB

    MD5

    14ff402962ad21b78ae0b4c43cd1f194

    SHA1

    f8a510eb26666e875a5bdd1cadad40602763ad72

    SHA256

    fb9646cb956945bdc503e69645f6b5316d3826b780d3c36738d6b944e884d15b

    SHA512

    daa7a08bf3709119a944bce28f6ebdd24e54a22b18cd9f86a87873e958df121a3881dcdd5e162f6b4e543238c7aef20f657c9830df01d4c79290f7c9a4fcc54b

  • memory/688-0-0x000000007450E000-0x000000007450F000-memory.dmp

    Filesize

    4KB

  • memory/688-1-0x00000000009D0000-0x0000000000B06000-memory.dmp

    Filesize

    1.2MB

  • memory/688-2-0x0000000002EB0000-0x0000000002ED8000-memory.dmp

    Filesize

    160KB

  • memory/688-5-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/688-73-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-71-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-69-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-67-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-65-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-63-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-61-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-59-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-57-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-55-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-53-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-51-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-49-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-47-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-45-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-43-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-41-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-39-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-37-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-35-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-33-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-31-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-29-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-27-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-25-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-23-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-21-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-19-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-17-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-15-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-13-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-12-0x0000000002EB0000-0x0000000002ED1000-memory.dmp

    Filesize

    132KB

  • memory/688-11-0x0000000072F10000-0x0000000072F99000-memory.dmp

    Filesize

    548KB

  • memory/688-170-0x000000007450E000-0x000000007450F000-memory.dmp

    Filesize

    4KB

  • memory/688-171-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/688-172-0x0000000006410000-0x00000000069B4000-memory.dmp

    Filesize

    5.6MB

  • memory/688-173-0x0000000005F40000-0x0000000005FD2000-memory.dmp

    Filesize

    584KB

  • memory/688-174-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/688-175-0x0000000001070000-0x000000000107A000-memory.dmp

    Filesize

    40KB

  • memory/688-179-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4900-178-0x00000000009A0000-0x0000000000A60000-memory.dmp

    Filesize

    768KB

  • memory/4900-182-0x0000000004FB0000-0x0000000005028000-memory.dmp

    Filesize

    480KB

  • memory/4900-181-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4900-180-0x0000000004F10000-0x0000000004FAC000-memory.dmp

    Filesize

    624KB

  • memory/4900-183-0x00000000050E0000-0x0000000005146000-memory.dmp

    Filesize

    408KB

  • memory/4900-184-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4900-185-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4900-186-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4900-187-0x0000000006DE0000-0x0000000006DEA000-memory.dmp

    Filesize

    40KB

  • memory/4900-188-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4900-189-0x0000000006EC0000-0x0000000006F10000-memory.dmp

    Filesize

    320KB

  • memory/4900-190-0x0000000006C80000-0x0000000006C94000-memory.dmp

    Filesize

    80KB

  • memory/4900-202-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB

  • memory/4900-203-0x0000000074500000-0x0000000074CB0000-memory.dmp

    Filesize

    7.7MB