General

  • Target

    731ff38afbc5a664f5a458e222d91f84.bin

  • Size

    1.2MB

  • Sample

    240512-devzbsdb8v

  • MD5

    40d4f15c20709e57b56bfbc928a1011f

  • SHA1

    14556508d945e8a310fddd69a9eb3c70b4a383cf

  • SHA256

    c2a5a01354deed0fafe346d38f6eec84f0d79ba0e20407c9e1218ff83711fbf9

  • SHA512

    7b383bc4a240bd8b212a2db3d43e2bf9cd7dbce3cc11dc4df04436888feb88b390e57cc859cff827ae0d3a4a6b57c564ae16618448c348582be063a185e56e1f

  • SSDEEP

    24576:iaV6j9uNn69I9DKQIHwqCbD8qqe8n+s9mDFf02NtwqRyi4PUbt2PVk+v:bIj9uN696+/3CLN/jpNpRm+OeC

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.150

Attributes
  • url_path

    /c698e1bc8a2f5e6d.php

Targets

    • Target

      a0e3a64e0e6aee3370ccbbca59f8ae0b34be674963c1dabe14926b24fdcae7d0.exe

    • Size

      2.7MB

    • MD5

      731ff38afbc5a664f5a458e222d91f84

    • SHA1

      5105f89898a3d9e5b5b52ddcd7d0a3b167aaf701

    • SHA256

      a0e3a64e0e6aee3370ccbbca59f8ae0b34be674963c1dabe14926b24fdcae7d0

    • SHA512

      910b1c9fb8e28c3f24d35a875ff86f3ab2e2c573797e078ece204538a3bdc6d42bc92531197e57be577ffb2e4cacdd53fec6a61843e6c69be4794e68506f68c3

    • SSDEEP

      24576:3RoBHi3buy4toE1jC6Ayo2xhWLbSPlqRvc68XzRVGvxB5VA0UC1dUUKj/OZ8j3g3:BoKmo4jC6TovDRUC1doj/Tg3

    • Detect ZGRat V1

    • Glupteba

      Glupteba is a modular loader written in Golang with various components.

    • Glupteba payload

    • Modifies Windows Defender Real-time Protection settings

    • Stealc

      Stealc is an infostealer written in C++.

    • Windows security bypass

    • ZGRat

      ZGRat is remote access trojan written in C#.

    • Modifies boot configuration data using bcdedit

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Run Powershell and hide display window.

    • Downloads MZ/PE file

    • Drops file in Drivers directory

    • Modifies Windows Firewall

    • Possible attempt to disable PatchGuard

      Rootkits can use kernel patching to embed themselves in an operating system.

    • 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.

    • Drops startup file

    • Executes dropped EXE

    • 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.

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

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

    • Drops Chrome extension

    • Legitimate hosting services abused for malware hosting/C2

    • Manipulates WinMon driver.

      Roottkits write to WinMon to hide PIDs from being detected.

    • Manipulates WinMonFS driver.

      Roottkits write to WinMonFS to hide directories/files from being detected.

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks