General

  • Target

    file

  • Size

    5.0MB

  • Sample

    240116-t7n99afhg3

  • MD5

    2b2eab865b6f06cba30a1c8d51ba2232

  • SHA1

    592e2f8e1d6d72e66e8b164b5039f966e105f6dd

  • SHA256

    15845dec2c7e05004d52ed8c1541d3b364fe6155f9263f7599b4e684fab2c3a5

  • SHA512

    3090d14ebade60f15b30f87d62c16352079a87658c77519c385de7bb3fa3f52ade688345a0c09e5501f4e3828752db53fcb51fdb948bf28fc130990a75ee3dcc

  • SSDEEP

    49152:X57qFK3V68ujeUKdHLgRJkkHnrkHhmvuFuvsqH77z1skzWQrzBwtmar58cJMfX92:Qfw0b1ByQr4SxP0

Malware Config

Extracted

Family

stealc

C2

http://185.172.128.79

Attributes
  • url_path

    /3886d2276f6914c4.php

rc4.plain

Targets

    • Target

      file

    • Size

      5.0MB

    • MD5

      2b2eab865b6f06cba30a1c8d51ba2232

    • SHA1

      592e2f8e1d6d72e66e8b164b5039f966e105f6dd

    • SHA256

      15845dec2c7e05004d52ed8c1541d3b364fe6155f9263f7599b4e684fab2c3a5

    • SHA512

      3090d14ebade60f15b30f87d62c16352079a87658c77519c385de7bb3fa3f52ade688345a0c09e5501f4e3828752db53fcb51fdb948bf28fc130990a75ee3dcc

    • SSDEEP

      49152:X57qFK3V68ujeUKdHLgRJkkHnrkHhmvuFuvsqH77z1skzWQrzBwtmar58cJMfX92:Qfw0b1ByQr4SxP0

    • Detect Fabookie payload

    • Fabookie

      Fabookie is facebook account info stealer.

    • 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++.

    • UAC bypass

    • Windows security bypass

    • Modifies boot configuration data using bcdedit

    • 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.

    • Registers COM server for autorun

    • UPX packed file

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

    • 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.

    • Checks whether UAC is enabled

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • 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