General

  • Target

    99e1c640be9fa28cee9b185982a47bbbefe8a699b79a22bfbb97c097fb0aec31

  • Size

    2.3MB

  • Sample

    240702-emjrpsydpm

  • MD5

    ebe33b40ce854edd8e39259a1b980a65

  • SHA1

    db07d27d6ee753c4b0f60ee50c0e052a12095ca3

  • SHA256

    99e1c640be9fa28cee9b185982a47bbbefe8a699b79a22bfbb97c097fb0aec31

  • SHA512

    62948eb0ae2c92118d6f121fee737926e31a2301ad5cc7a2a1442975113b5edae2310f98b08937cc9d9f790e9ef7af162bacdcb65996d1b090c99bbb3a18bb00

  • SSDEEP

    49152:vj2rggBXww93BEYE5aPdlWqwjvBrIV5O3/Nz872I:vj4gCyx5aaqwb54561872

Malware Config

Extracted

Family

stealc

Botnet

jony

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

      99e1c640be9fa28cee9b185982a47bbbefe8a699b79a22bfbb97c097fb0aec31

    • Size

      2.3MB

    • MD5

      ebe33b40ce854edd8e39259a1b980a65

    • SHA1

      db07d27d6ee753c4b0f60ee50c0e052a12095ca3

    • SHA256

      99e1c640be9fa28cee9b185982a47bbbefe8a699b79a22bfbb97c097fb0aec31

    • SHA512

      62948eb0ae2c92118d6f121fee737926e31a2301ad5cc7a2a1442975113b5edae2310f98b08937cc9d9f790e9ef7af162bacdcb65996d1b090c99bbb3a18bb00

    • SSDEEP

      49152:vj2rggBXww93BEYE5aPdlWqwjvBrIV5O3/Nz872I:vj4gCyx5aaqwb54561872

    • 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.

    • 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

5
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks