General

  • Target

    files.zip

  • Size

    8.7MB

  • Sample

    240619-ya8pvasgpm

  • MD5

    e1308b43d8b85a456dcd491bf5b699bc

  • SHA1

    a1721954289dc598b36cc367d9696cd36f2c836d

  • SHA256

    dea471b5ef81e7de2db1209136c2d2b483b9c86df632823f61e8d2be08822abc

  • SHA512

    2667046052048938ea51b01b47922a53d3641cc01cb000fbc504c6b5825310a147f5f2548622e673285c7a0c994a0c359a66ddfff02c237b41328b4d9143f65b

  • SSDEEP

    196608:wbo9EiO5grGiy5qGdenyuig96zBEKOwr4ahuEt4afgFshsdoa+faBe//u:wboeiO51iy5xuz4BEjk4aDyaOsmoaRYO

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

amadey

Version

4.30

Botnet

ffb1b9

C2

http://proresupdate.com

Attributes
  • install_dir

    4bbb72a446

  • install_file

    Hkbsse.exe

  • strings_key

    1ebbd218121948a356341fff55521237

  • url_paths

    /h9fmdW5/index.php

rc4.plain

Targets

    • Target

      files/Setup.exe

    • Size

      202KB

    • MD5

      64179e64675e822559cac6652298bdfc

    • SHA1

      cceed3b2441146762512918af7bf7f89fb055583

    • SHA256

      c26db97858c427d92e393396f7cb7f9e7ed8f9ce616adcc123d0ec6b055b99c9

    • SHA512

      ef740b35ea5190f8ee47776af1f15ebdd54d39c84da5665e64f67ae6dd0f4b181e955e9a35319a5d0bd764972562e8f2bc44dbdf83c3bedf05674eae902e7280

    • SSDEEP

      3072:EMtKztOp6KfOQqoY3ltdNjlcwsSdplkrxf+Uyecgw:ELKfOQLY3l9jlcwnlUf+z7gw

    • Amadey

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

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • xmrig

      XMRig is a high performance, open source, cross platform CPU/GPU miner.

    • XMRig Miner payload

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

    • Reads user/profile data of web browsers

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

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Downloads MZ/PE file

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Defense Evasion

Modify Registry

2
T1112

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Credential Access

Unsecured Credentials

4
T1552

Credentials In Files

4
T1552.001

Discovery

Query Registry

3
T1012

System Information Discovery

3
T1082

Collection

Data from Local System

4
T1005

Tasks