General

  • Target

    b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4

  • Size

    1.8MB

  • Sample

    240328-f4gjcacb96

  • MD5

    f20a8515b8d200c756c399b7b6f3aab6

  • SHA1

    a709b8e7c6d1cb5dc18ec24cb5cbea937c733c01

  • SHA256

    b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4

  • SHA512

    bc82d39a9c3a7839e156bd45bed4f91973f9e288700b581c750973925de2f295e21fd3b71b8b1cd0839d456467a4f71e020ecfadc97062eb6e3c14a4e58dc92e

  • SSDEEP

    24576:Zcu4+MrpB4YRZm5QZ/hBQ1siamnCPD8fq//M6Lf0wfBnCXxUmWZo5vPUpRvQ+Ae1:iu4EKZmulus/7iq//M9p76Vs

Malware Config

Extracted

Family

amadey

Version

4.17

C2

http://185.215.113.32

Attributes
  • install_dir

    00c07260dc

  • install_file

    explorgu.exe

  • strings_key

    461809bd97c251ba0c0c8450c7055f1d

  • url_paths

    /yandex/index.php

rc4.plain

Targets

    • Target

      b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4

    • Size

      1.8MB

    • MD5

      f20a8515b8d200c756c399b7b6f3aab6

    • SHA1

      a709b8e7c6d1cb5dc18ec24cb5cbea937c733c01

    • SHA256

      b67b94369aa0f66e0c17805cb1d5249d6d48f34a64a4afb6561f1fde195c47d4

    • SHA512

      bc82d39a9c3a7839e156bd45bed4f91973f9e288700b581c750973925de2f295e21fd3b71b8b1cd0839d456467a4f71e020ecfadc97062eb6e3c14a4e58dc92e

    • SSDEEP

      24576:Zcu4+MrpB4YRZm5QZ/hBQ1siamnCPD8fq//M6Lf0wfBnCXxUmWZo5vPUpRvQ+Ae1:iu4EKZmulus/7iq//M9p76Vs

    • Amadey

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

    • Identifies VirtualBox via ACPI registry values (likely anti-VM)

    • Blocklisted process makes network request

    • 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 WinSCP keys stored on the system

      Tries to access WinSCP stored sessions.

    • Reads local data of messenger clients

      Infostealers often target stored data of messaging applications, which can include saved credentials and account information.

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • 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

2
T1552.001

Credentials in Registry

1
T1552.002

Discovery

Query Registry

4
T1012

Virtualization/Sandbox Evasion

2
T1497

System Information Discovery

3
T1082

Collection

Data from Local System

3
T1005

Tasks