General

  • Target

    585dad4590d9a7722a93434b59d8c37a5d21ff9deb0d5fff0b242d8b8268db98

  • Size

    1.8MB

  • Sample

    240630-mfzhkswelc

  • MD5

    908243a9511f16a9e6365cd83328b032

  • SHA1

    9c5c9f3b75dac14e77303933c11df64e2649c5c1

  • SHA256

    585dad4590d9a7722a93434b59d8c37a5d21ff9deb0d5fff0b242d8b8268db98

  • SHA512

    0b601ae823a9d07b0e8a2250d7ab1ddf7779fedf4713521d3afca81a0bb0fba87bbe32d1aebc748d590639d20a407a84f025ecc5541cf2364c9588d871bb64da

  • SSDEEP

    49152:RMhIGBD39f7f1bjW5Q0BzH4p6xbeOBbJAPI7e:RvGBD39LNa5Q0pA6xbtAPI

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

      585dad4590d9a7722a93434b59d8c37a5d21ff9deb0d5fff0b242d8b8268db98

    • Size

      1.8MB

    • MD5

      908243a9511f16a9e6365cd83328b032

    • SHA1

      9c5c9f3b75dac14e77303933c11df64e2649c5c1

    • SHA256

      585dad4590d9a7722a93434b59d8c37a5d21ff9deb0d5fff0b242d8b8268db98

    • SHA512

      0b601ae823a9d07b0e8a2250d7ab1ddf7779fedf4713521d3afca81a0bb0fba87bbe32d1aebc748d590639d20a407a84f025ecc5541cf2364c9588d871bb64da

    • SSDEEP

      49152:RMhIGBD39f7f1bjW5Q0BzH4p6xbeOBbJAPI7e:RvGBD39LNa5Q0pA6xbtAPI

    • 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