General

  • Target

    03b6b9b10aad113cb8e9bd43d0ed189dde70170e6141aa2bd3cbec5644e7553e

  • Size

    2.4MB

  • Sample

    240628-pat21s1fkl

  • MD5

    773e8af03da6e64f25166e7df67d71fe

  • SHA1

    db43e8714ce1c8d496e0eef1f9f61fafa5dfa0ad

  • SHA256

    03b6b9b10aad113cb8e9bd43d0ed189dde70170e6141aa2bd3cbec5644e7553e

  • SHA512

    70bb1a7bf085b4373d06db5f1fe8acd011d5fac4d0c3f631b2d2ec7ba355cd05127b21eab290de500c09326674948a8b788eb49eb1ce21d1f58e53c3f22fafe6

  • SSDEEP

    49152:InkYmh7/egM/WXtzFAmlR0yIwsMa720naH3QqN2zw0XTUzQaQo6Az99ZP:InkvZmgCeM8KTN60aH3QqN2z5XUQawAB

Malware Config

Extracted

Family

stealc

Botnet

default

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

Extracted

Family

amadey

Version

4.30

Botnet

4dd39d

C2

http://77.91.77.82

Attributes
  • install_dir

    ad40971b6b

  • install_file

    explorti.exe

  • strings_key

    a434973ad22def7137dbb5e059b7081e

  • url_paths

    /Hun4Ko/index.php

rc4.plain

Targets

    • Target

      03b6b9b10aad113cb8e9bd43d0ed189dde70170e6141aa2bd3cbec5644e7553e

    • Size

      2.4MB

    • MD5

      773e8af03da6e64f25166e7df67d71fe

    • SHA1

      db43e8714ce1c8d496e0eef1f9f61fafa5dfa0ad

    • SHA256

      03b6b9b10aad113cb8e9bd43d0ed189dde70170e6141aa2bd3cbec5644e7553e

    • SHA512

      70bb1a7bf085b4373d06db5f1fe8acd011d5fac4d0c3f631b2d2ec7ba355cd05127b21eab290de500c09326674948a8b788eb49eb1ce21d1f58e53c3f22fafe6

    • SSDEEP

      49152:InkYmh7/egM/WXtzFAmlR0yIwsMa720naH3QqN2zw0XTUzQaQo6Az99ZP:InkvZmgCeM8KTN60aH3QqN2z5XUQawAB

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • Stealc

      Stealc is an infostealer written in C++.

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Downloads MZ/PE file

    • Checks BIOS information in registry

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

    • Checks computer location settings

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

    • Executes dropped EXE

    • Identifies Wine through registry keys

      Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of web browsers

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

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Checks installed software on the system

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Virtualization/Sandbox Evasion

2
T1497

Credential Access

Unsecured Credentials

3
T1552

Credentials In Files

3
T1552.001

Discovery

Query Registry

6
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

4
T1082

Collection

Data from Local System

3
T1005

Tasks