General

  • Target

    3d077e284182f6fb65312dcd33c93fa7c1eb8c4913976b1a53a0daac0ed2d7ed

  • Size

    1.8MB

  • Sample

    240628-fg9llsvcrr

  • MD5

    7cb2f154a3330d429ecdf78c2746db99

  • SHA1

    4d150811da1b7d9845e98fbdd4c90d99c7c90e64

  • SHA256

    3d077e284182f6fb65312dcd33c93fa7c1eb8c4913976b1a53a0daac0ed2d7ed

  • SHA512

    42c03d9fade964adb6261669dc1485b0bfafc7065fd2846c305570e18ff9aeca3bb7ab63426b3d5c44bb28fb9cf95fb35e78f766fcf0a18e4facdd04951f45bb

  • SSDEEP

    49152:xSdx8ELkXi0icrIc3gtTiyZ+eGQ/3+qTe09q:xmxyR7fgGK39bY

Malware Config

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

Extracted

Family

stealc

Botnet

default

C2

http://85.28.47.4

Attributes
  • url_path

    /920475a59bac849d.php

Targets

    • Target

      3d077e284182f6fb65312dcd33c93fa7c1eb8c4913976b1a53a0daac0ed2d7ed

    • Size

      1.8MB

    • MD5

      7cb2f154a3330d429ecdf78c2746db99

    • SHA1

      4d150811da1b7d9845e98fbdd4c90d99c7c90e64

    • SHA256

      3d077e284182f6fb65312dcd33c93fa7c1eb8c4913976b1a53a0daac0ed2d7ed

    • SHA512

      42c03d9fade964adb6261669dc1485b0bfafc7065fd2846c305570e18ff9aeca3bb7ab63426b3d5c44bb28fb9cf95fb35e78f766fcf0a18e4facdd04951f45bb

    • SSDEEP

      49152:xSdx8ELkXi0icrIc3gtTiyZ+eGQ/3+qTe09q:xmxyR7fgGK39bY

    • 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