General

  • Target

    bfe14f1b5c9decad76257e76704d81a18972e9c1632148baa7da5e6eb3cd23dd

  • Size

    1.8MB

  • Sample

    240701-btyyessbmg

  • MD5

    5fd2f5ac5b682da3aaa4cf4a5496f62a

  • SHA1

    e660365eaaaf5d7b3b04e0b56fbd7b202e10419e

  • SHA256

    bfe14f1b5c9decad76257e76704d81a18972e9c1632148baa7da5e6eb3cd23dd

  • SHA512

    09aa78abbdcdbfb801c3ff9f05e55a9b482e1ccd3f1c5f25dc35d96ef01fe26f7057648737500bd21eb3a49c126a8406ff0dd7c15f3a38067d949c5283b93c75

  • SSDEEP

    49152:Dv4OYm4gUqzObuTe3zHokF+JGOuEqtuwt1VZ1r2cz0iOEws4:Dgdm1UqzO1NFQGOuEvwx6ZiTws

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

      bfe14f1b5c9decad76257e76704d81a18972e9c1632148baa7da5e6eb3cd23dd

    • Size

      1.8MB

    • MD5

      5fd2f5ac5b682da3aaa4cf4a5496f62a

    • SHA1

      e660365eaaaf5d7b3b04e0b56fbd7b202e10419e

    • SHA256

      bfe14f1b5c9decad76257e76704d81a18972e9c1632148baa7da5e6eb3cd23dd

    • SHA512

      09aa78abbdcdbfb801c3ff9f05e55a9b482e1ccd3f1c5f25dc35d96ef01fe26f7057648737500bd21eb3a49c126a8406ff0dd7c15f3a38067d949c5283b93c75

    • SSDEEP

      49152:Dv4OYm4gUqzObuTe3zHokF+JGOuEqtuwt1VZ1r2cz0iOEws4:Dgdm1UqzO1NFQGOuEvwx6ZiTws

    • 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