General

  • Target

    b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8.exe

  • Size

    1.9MB

  • Sample

    240701-bncg8sveln

  • MD5

    44809186c26c6851b67bd98c5498f3ca

  • SHA1

    32de1b7315ecf0f684cb5e3f5b6ccc8b77b214f5

  • SHA256

    b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8

  • SHA512

    80c31c6b5bc3dd6c7c6be4301f37748e31906e27d19b217601b105bad092aab11c7a24be7a9ad885b113fa24dc77775df8200e2238c7cd91fca19b9a05f40982

  • SSDEEP

    49152:0vGfBq3ndOzIxgNSqDsslj7MpDtGq4mzX:0vSkozImQqDssRMp7TzX

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

      b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8.exe

    • Size

      1.9MB

    • MD5

      44809186c26c6851b67bd98c5498f3ca

    • SHA1

      32de1b7315ecf0f684cb5e3f5b6ccc8b77b214f5

    • SHA256

      b6b7748dc00fc7ab14ca8ed870f992306ae599ea0aa199360b97337bdcc473f8

    • SHA512

      80c31c6b5bc3dd6c7c6be4301f37748e31906e27d19b217601b105bad092aab11c7a24be7a9ad885b113fa24dc77775df8200e2238c7cd91fca19b9a05f40982

    • SSDEEP

      49152:0vGfBq3ndOzIxgNSqDsslj7MpDtGq4mzX:0vSkozImQqDssRMp7TzX

    • Amadey

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

    • Stealc

      Stealc is an infostealer written in C++.

    • Detect binaries embedding considerable number of MFA browser extension IDs.

    • Detect binaries embedding considerable number of cryptocurrency wallet browser extension IDs.

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • 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