Analysis

  • max time kernel
    92s
  • max time network
    93s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    05-08-2024 05:55

General

  • Target

    updateload.exe

  • Size

    3.1MB

  • MD5

    4c5dbf388f5de761e45f268186f8be27

  • SHA1

    918b198ad13af4c52b4518ff22a2a032e86e3679

  • SHA256

    92a218b4b6cbd696cb07698a2da0fc8578ad1f966a88509e25db827fe85a2920

  • SHA512

    4f9331107ec172cd3caa767a2af3e9f18e85ccf71b725be4bfbb0e83dcaf40d8e10581531a709227a6135efae8531a9d55bc22b32c0a8eaafdd8adc4c736dc94

  • SSDEEP

    49152:DUvC/MTQYNsWy9aRV0NmZfClF/sKkTUD6CsRBJgsoDDeA:IjTQYNsWy6FClFUKkwWRBSpDDeA

Malware Config

Extracted

Family

stealc

Botnet

meowsterioland4

C2

http://45.152.112.131

Attributes
  • url_path

    /8ee66a3c8f19e4b5.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++.

  • Credentials from Password Stores: Credentials from Web Browsers 1 TTPs

    Malicious Access or copy of Web Browser Credential store.

  • 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
  • AutoIT Executable 1 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of SetThreadContext 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 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.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious behavior: MapViewOfSection 2 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SendNotifyMessage 2 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\updateload.exe
    "C:\Users\Admin\AppData\Local\Temp\updateload.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    • Suspicious use of WriteProcessMemory
    PID:4228
    • 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:3944
      • 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
        PID:4612

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\ProgramData\mozglue.dll

    Filesize

    593KB

    MD5

    c8fd9be83bc728cc04beffafc2907fe9

    SHA1

    95ab9f701e0024cedfbd312bcfe4e726744c4f2e

    SHA256

    ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

    SHA512

    fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

  • C:\ProgramData\nss3.dll

    Filesize

    2.0MB

    MD5

    1cc453cdf74f31e4d913ff9c10acdde2

    SHA1

    6e85eae544d6e965f15fa5c39700fa7202f3aafe

    SHA256

    ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

    SHA512

    dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

  • C:\Users\Admin\AppData\Local\Temp\d1e1c67d

    Filesize

    904KB

    MD5

    9452c19e078528a137d9c84d1893020d

    SHA1

    fb48382c82a1d59086ffa834946614525b78e504

    SHA256

    d30058da5e61f38e278e78d244a337a6bbd48d73574510cdd74b39da7d10c68a

    SHA512

    b46085158359aab656075843c9fe4faf94274c80c47fc8a9ec451e88dd9fbc3c8c0baa97c386b3cd5f74ba95ea1ef72e9059601593f7137f63aac2ee0e1717c8

  • memory/3944-9-0x00007FFD24670000-0x00007FFD24865000-memory.dmp

    Filesize

    2.0MB

  • memory/3944-13-0x0000000074000000-0x000000007417B000-memory.dmp

    Filesize

    1.5MB

  • memory/3944-11-0x0000000074000000-0x000000007417B000-memory.dmp

    Filesize

    1.5MB

  • memory/3944-10-0x0000000074000000-0x000000007417B000-memory.dmp

    Filesize

    1.5MB

  • memory/3944-7-0x0000000074000000-0x000000007417B000-memory.dmp

    Filesize

    1.5MB

  • memory/4228-5-0x0000000074000000-0x000000007417B000-memory.dmp

    Filesize

    1.5MB

  • memory/4228-0-0x0000000000290000-0x00000000005A2000-memory.dmp

    Filesize

    3.1MB

  • memory/4228-4-0x0000000074000000-0x000000007417B000-memory.dmp

    Filesize

    1.5MB

  • memory/4228-3-0x0000000074013000-0x0000000074015000-memory.dmp

    Filesize

    8KB

  • memory/4228-1-0x0000000074000000-0x000000007417B000-memory.dmp

    Filesize

    1.5MB

  • memory/4228-2-0x00007FFD24670000-0x00007FFD24865000-memory.dmp

    Filesize

    2.0MB

  • memory/4612-19-0x0000000000800000-0x0000000000C33000-memory.dmp

    Filesize

    4.2MB

  • memory/4612-16-0x00000000004D0000-0x0000000000714000-memory.dmp

    Filesize

    2.3MB

  • memory/4612-18-0x00000000008E3000-0x00000000008EB000-memory.dmp

    Filesize

    32KB

  • memory/4612-20-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4612-62-0x00000000004D0000-0x0000000000714000-memory.dmp

    Filesize

    2.3MB

  • memory/4612-15-0x00007FFD24670000-0x00007FFD24865000-memory.dmp

    Filesize

    2.0MB

  • memory/4612-14-0x00000000004D0000-0x0000000000714000-memory.dmp

    Filesize

    2.3MB

  • memory/4612-92-0x00000000004D0000-0x0000000000714000-memory.dmp

    Filesize

    2.3MB