Analysis

  • max time kernel
    95s
  • max time network
    96s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03-10-2024 15:56

General

  • Target

    40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe

  • Size

    5.6MB

  • MD5

    07dd73909e1a74b92498058afc918ede

  • SHA1

    2f3f9ab4f17ccd2dfe0c4aada522b00c580c454d

  • SHA256

    40122c3fc307277bbcb516dce390f74f27e2f798cb351a692f820ba7d3ffd735

  • SHA512

    97f66cd575203cfbd0d584475c6696b160071e95466e5dde8b71d66138108f0b4d544af24706720960509fd7fd21bef07e443995457de3805168672844901853

  • SSDEEP

    98304:XUd9wETbKHs4+b4EmeICxgHxC6qz1loJoYFqQ5dn6uqhAoCVtxnz+oEIWoJd:MwgbKM44YCxwxmzLOFfdrq+P/xnCoEIh

Malware Config

Extracted

Family

stealc

Botnet

meowsterioland29

C2

http://5.188.87.43

Attributes
  • url_path

    /29087f1d398f0eec.php

Signatures

  • Detects HijackLoader (aka IDAT Loader) 1 IoCs
  • HijackLoader

    HijackLoader is a multistage loader first seen in 2023.

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Deletes itself 1 IoCs
  • Loads dropped DLL 2 IoCs
  • Unsecured Credentials: Credentials In Files 1 TTPs

    Steal credentials from unsecured files.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Checks processor information in registry 2 TTPs 2 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Delays execution with timeout.exe 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of WriteProcessMemory 19 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe
    "C:\Users\Admin\AppData\Local\Temp\40122c3fc307277bbcb516dce390f74f27e2f798cb351.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:2316
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\SysWOW64\cmd.exe
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: MapViewOfSection
      • Suspicious use of WriteProcessMemory
      PID:2948
      • C:\Windows\SysWOW64\explorer.exe
        C:\Windows\SysWOW64\explorer.exe
        3⤵
        • Loads dropped DLL
        • System Location Discovery: System Language Discovery
        • Checks processor information in registry
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of WriteProcessMemory
        PID:2900
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\system32\cmd.exe" /c timeout /t 5 & del /f /q "" & del "C:\ProgramData\*.dll"" & exit
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious use of WriteProcessMemory
          PID:2832
          • C:\Windows\SysWOW64\timeout.exe
            timeout /t 5
            5⤵
            • System Location Discovery: System Language Discovery
            • Delays execution with timeout.exe
            PID:1968

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\32646560

    Filesize

    1.0MB

    MD5

    41d185071fae88248959c8c999311945

    SHA1

    ee699d6b5679050b3bea562d47d9a8f902401b90

    SHA256

    4da123b452cb975750a8fb009493231ec02693c14e2bc928f6a720b5a8f1a51f

    SHA512

    19b4721ff7b273a664023476cf8ff538835a3ea3cffefc9c3d4bcb81c989f20a00bbe9a3213c980bb5b490186bb408dcc241a860ce5578ca902cf2832d8513bf

  • \ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • \ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • memory/2316-0-0x0000000000400000-0x0000000000561000-memory.dmp

    Filesize

    1.4MB

  • memory/2316-1-0x00000000747B0000-0x0000000074924000-memory.dmp

    Filesize

    1.5MB

  • memory/2316-2-0x0000000077530000-0x00000000776D9000-memory.dmp

    Filesize

    1.7MB

  • memory/2316-4-0x00000000747B0000-0x0000000074924000-memory.dmp

    Filesize

    1.5MB

  • memory/2316-3-0x00000000747C3000-0x00000000747C5000-memory.dmp

    Filesize

    8KB

  • memory/2316-5-0x00000000747B0000-0x0000000074924000-memory.dmp

    Filesize

    1.5MB

  • memory/2900-21-0x0000000000650000-0x0000000000658000-memory.dmp

    Filesize

    32KB

  • memory/2900-22-0x0000000000620000-0x00000000008A1000-memory.dmp

    Filesize

    2.5MB

  • memory/2900-85-0x00000000001D0000-0x0000000000433000-memory.dmp

    Filesize

    2.4MB

  • memory/2900-15-0x00000000001D0000-0x0000000000433000-memory.dmp

    Filesize

    2.4MB

  • memory/2900-16-0x0000000077530000-0x00000000776D9000-memory.dmp

    Filesize

    1.7MB

  • memory/2900-17-0x00000000001D0000-0x0000000000433000-memory.dmp

    Filesize

    2.4MB

  • memory/2900-62-0x00000000001D0000-0x0000000000433000-memory.dmp

    Filesize

    2.4MB

  • memory/2900-24-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/2900-23-0x00000000001D0000-0x0000000000433000-memory.dmp

    Filesize

    2.4MB

  • memory/2948-12-0x00000000747B0000-0x0000000074924000-memory.dmp

    Filesize

    1.5MB

  • memory/2948-11-0x00000000747B0000-0x0000000074924000-memory.dmp

    Filesize

    1.5MB

  • memory/2948-9-0x0000000077530000-0x00000000776D9000-memory.dmp

    Filesize

    1.7MB

  • memory/2948-7-0x00000000747B0000-0x0000000074924000-memory.dmp

    Filesize

    1.5MB

  • memory/2948-14-0x00000000747B0000-0x0000000074924000-memory.dmp

    Filesize

    1.5MB