General

  • Target

    aaf528c6e9dcc6876871abd209ae90a8.exe

  • Size

    3.8MB

  • Sample

    220627-qxx8mabfgn

  • MD5

    aaf528c6e9dcc6876871abd209ae90a8

  • SHA1

    9f6392d28cdf543b5508ce7e86f0dc26df53cc0c

  • SHA256

    3d464460a5eca975b045bdf92d3cc2952047279a06a7d618c6ea2c8b66ddce2c

  • SHA512

    11452d10f571800290880696695f4cadcf979558dc096df25f3b2f57622a62571b8836780c48f00989578c1d6ad7ee9f77dd7485115e7e221f5e245b43ae34ca

Malware Config

Extracted

Family

bitrat

Version

1.38

C2

connect.holix.de:8700

Attributes
  • communication_password

    2011af5a2285a618daf8125dd3fd296e

  • install_dir

    Microsoft

  • install_file

    SignatureUpdate.exe

  • tor_process

    tor

Targets

    • Target

      aaf528c6e9dcc6876871abd209ae90a8.exe

    • Size

      3.8MB

    • MD5

      aaf528c6e9dcc6876871abd209ae90a8

    • SHA1

      9f6392d28cdf543b5508ce7e86f0dc26df53cc0c

    • SHA256

      3d464460a5eca975b045bdf92d3cc2952047279a06a7d618c6ea2c8b66ddce2c

    • SHA512

      11452d10f571800290880696695f4cadcf979558dc096df25f3b2f57622a62571b8836780c48f00989578c1d6ad7ee9f77dd7485115e7e221f5e245b43ae34ca

    • BitRAT

      BitRAT is a remote access tool written in C++ and uses leaked source code from other families.

    • XenArmor Suite

      XenArmor is as suite of password recovery tools for various application.

    • suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

      suricata: ET MALWARE Observed Malicious SSL Cert (BitRAT CnC)

    • xmrig

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

    • ACProtect 1.3x - 1.4x DLL software

      Detects file using ACProtect software.

    • Detected Stratum cryptominer command

      Looks to be attempting to contact Stratum mining pool.

    • XMRig Miner Payload

    • Executes dropped EXE

    • UPX packed file

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

    • 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.

    • 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 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.

    • Accesses Microsoft Outlook accounts

    • Adds Run key to start application

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Registry Run Keys / Startup Folder

1
T1060

Defense Evasion

Modify Registry

1
T1112

Credential Access

Credentials in Files

4
T1081

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Collection

Data from Local System

4
T1005

Email Collection

1
T1114

Tasks