Analysis

  • max time kernel
    149s
  • max time network
    152s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240708-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240708-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-07-2024 15:37

General

  • Target

    25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9.exe

  • Size

    2.4MB

  • MD5

    e6a54ac6b35b2def5a7d9b9699388f26

  • SHA1

    5f8a57b2e8902523bbafc50434f3692fe1d92b74

  • SHA256

    25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9

  • SHA512

    8cdfb2da836614148507585645613432f7dd802ac8c80b89a4b302c9dfbbc9a96decd4a2df6468843ccfebd479968058d7f184e67026cf6b1d8dd474634c87c4

  • SSDEEP

    49152:Ck2E6aD/CORxvfoSmBXE6G7VrBfqFuUvo4NVJaeqeuf+z:CfSCO7NmB3GVBfqFxQYTqeuf+z

Malware Config

Extracted

Family

stealc

Botnet

hate

C2

http://85.28.47.30

Attributes
  • url_path

    /920475a59bac849d.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • Checks computer location settings 2 TTPs 3 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Loads dropped DLL 2 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of NtSetInformationThreadHideFromDebugger 3 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9.exe
    "C:\Users\Admin\AppData\Local\Temp\25d515f52e58c10727895f1ee1a269998e37d3b4308e6ac6f1419186c30290a9.exe"
    1⤵
    • Checks computer location settings
    • Loads dropped DLL
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4340
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KKFCAAKFBA.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      PID:856
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\system32\cmd.exe" /c start "" "C:\Users\Admin\AppData\Local\Temp\KKFCAAKFBA.exe"
      2⤵
      • Checks computer location settings
      • Suspicious use of SetWindowsHookEx
      PID:3700

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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\KKFCAAKFBA.exe

    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • memory/4340-0-0x00000000004E0000-0x00000000010DD000-memory.dmp

    Filesize

    12.0MB

  • memory/4340-1-0x000000007EAE0000-0x000000007EEB1000-memory.dmp

    Filesize

    3.8MB

  • memory/4340-2-0x0000000061E00000-0x0000000061EF3000-memory.dmp

    Filesize

    972KB

  • memory/4340-74-0x00000000004E0000-0x00000000010DD000-memory.dmp

    Filesize

    12.0MB

  • memory/4340-79-0x00000000004E0000-0x00000000010DD000-memory.dmp

    Filesize

    12.0MB

  • memory/4340-80-0x000000007EAE0000-0x000000007EEB1000-memory.dmp

    Filesize

    3.8MB