Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-03-2024 11:00

General

  • Target

    9120566b5096fc5643a1b64c2ef29fd034c245d52ec244cdf06b6e312e299acf.exe

  • Size

    252KB

  • MD5

    22b7e30240f2ba7b9f8dc28b8ca8a3e8

  • SHA1

    e6ff3a623345ff800c3b5cfed45375face9c9a64

  • SHA256

    9120566b5096fc5643a1b64c2ef29fd034c245d52ec244cdf06b6e312e299acf

  • SHA512

    20fc8a81d5c3b1ce2abc243c5f046c999f7a904f065a5495334ec10a07fa60b0232c44b42cfb7a7319987852333997658fadc37b877d2d44449949b80d7d5f35

  • SSDEEP

    6144:OvcdMCQi9IKtAEdht4fTPnVujyu7P7uHyl64:9dMCh9IKqEle5uT7uHc

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.26

Attributes
  • url_path

    /f993692117a3fda2.php

Signatures

  • Stealc

    Stealc is an infostealer written in C++.

  • Downloads MZ/PE file
  • 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.

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\9120566b5096fc5643a1b64c2ef29fd034c245d52ec244cdf06b6e312e299acf.exe
    "C:\Users\Admin\AppData\Local\Temp\9120566b5096fc5643a1b64c2ef29fd034c245d52ec244cdf06b6e312e299acf.exe"
    1⤵
    • Loads dropped DLL
    • Checks processor information in registry
    • Suspicious behavior: EnumeratesProcesses
    PID:116

Network

MITRE ATT&CK Matrix ATT&CK v13

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

2
T1012

System Information Discovery

1
T1082

Collection

Data from Local System

3
T1005

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

  • memory/116-45-0x00000000007C0000-0x00000000008C0000-memory.dmp
    Filesize

    1024KB

  • memory/116-4-0x0000000000400000-0x000000000063B000-memory.dmp
    Filesize

    2.2MB

  • memory/116-5-0x0000000061E00000-0x0000000061EF3000-memory.dmp
    Filesize

    972KB

  • memory/116-44-0x0000000000400000-0x000000000063B000-memory.dmp
    Filesize

    2.2MB

  • memory/116-1-0x00000000007C0000-0x00000000008C0000-memory.dmp
    Filesize

    1024KB

  • memory/116-49-0x0000000000400000-0x000000000063B000-memory.dmp
    Filesize

    2.2MB

  • memory/116-57-0x0000000000400000-0x000000000063B000-memory.dmp
    Filesize

    2.2MB

  • memory/116-64-0x0000000000400000-0x000000000063B000-memory.dmp
    Filesize

    2.2MB

  • memory/116-2-0x0000000002380000-0x00000000023A7000-memory.dmp
    Filesize

    156KB

  • memory/116-3-0x0000000000400000-0x000000000063B000-memory.dmp
    Filesize

    2.2MB

  • memory/116-85-0x0000000000400000-0x000000000063B000-memory.dmp
    Filesize

    2.2MB

  • memory/116-93-0x0000000000400000-0x000000000063B000-memory.dmp
    Filesize

    2.2MB