General

  • Target

    2x.rar

  • Size

    14.6MB

  • Sample

    240619-q57f9s1fqd

  • MD5

    c1159fc3286eb949217ee436bc31a14a

  • SHA1

    29ea7fe377e9ffb2d7b3cb899b8b618de17241da

  • SHA256

    fb389983ad7ef0623d3318ca5e7aa2b484692affa283929504133f825329ea4e

  • SHA512

    39e92d5fc5430b731cacd8e70b2acfd58a48d599b79f66c86e2ce5de153a864c79dc07836291e31af38c533fd15915b5650339e353fea14c490c2d7c0f7f0980

  • SSDEEP

    393216:X7qOAkrPBtzGBwT2DfUomq1CYj97IIY9j5MugpH5NWr9HMLvJLr:Ll55tz+wTrFq1CY57ObMuyH5NWRHGZ

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

      6a136a7426b8770d8664cc9e508c093bf597231738e853f21e597dac99534bf3/files/Setup.exe

    • Size

      5.5MB

    • MD5

      9d8649afd4141d960b6545998fbc423b

    • SHA1

      3ddd700caaebab0a9d2ed640f235d4b716a505de

    • SHA256

      db2457caa1ccd65e63718b9e28789a12e17bc7a038975fba4f07dcd9f38e7016

    • SHA512

      0a50681e956df3187a718570fd54600365e8ad805b7e291eb5fc6169df47a6d31596f890419aa36a4f3d983b17eb21eae9e2e51cf5755f8b2b890ba87b752da2

    • SSDEEP

      49152:88iGSBp0o5I9vl6yoPgbIXayfQUxldpSphlWopc9MTHKsb48bHVGfKiaaQATZ79z:bihyoPgbInQEHY3N3sNfxLlC1Dxeh

    • Detect Vidar Stealer

    • Stealc

      Stealc is an infostealer written in C++.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Checks computer location settings

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

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Suspicious use of SetThreadContext

    • Target

      b7fd8320d8c4c416bd3f033cd7e823c71866f07c965806bbaba5699a0bbaa49e/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

5
T1552

Credentials In Files

5
T1552.001

Discovery

Query Registry

6
T1012

System Information Discovery

6
T1082

Collection

Data from Local System

5
T1005

Tasks