General

  • Target

    be684c0623c1f226849c386f594c2626c14c73470a989a8907a03c258e01abfc

  • Size

    64KB

  • Sample

    220701-el8dnsdaf3

  • MD5

    b2a52460d7ddcf0d1eb6cb98171309da

  • SHA1

    fe2ae9c1d227e045351d4c8e64089cade6ca2f48

  • SHA256

    be684c0623c1f226849c386f594c2626c14c73470a989a8907a03c258e01abfc

  • SHA512

    d332b3cefa05f13338ebfdf5d2f87de593d82371ad950d815a8b5e4c41f06fb8a8722ab9da77286c7d6da82effc2faa4b7de246943f86f39e91ce3c926deb8cd

Malware Config

Extracted

Family

guloader

C2

https://drive.google.com/uc?export=download&id=1YqiJ4rfI-Gtvq2s00N_eqstSWsnL_fgd

Extracted

Family

webmonitor

C2

olaviqs.wm01.to:443

Attributes
  • config_key

    7GfpikpHRvmQe3t81PSe02B3qwlPiFPx

  • private_key

    JklcEIRIO

  • url_path

    /recv5.php

Targets

    • Target

      be684c0623c1f226849c386f594c2626c14c73470a989a8907a03c258e01abfc

    • Size

      64KB

    • MD5

      b2a52460d7ddcf0d1eb6cb98171309da

    • SHA1

      fe2ae9c1d227e045351d4c8e64089cade6ca2f48

    • SHA256

      be684c0623c1f226849c386f594c2626c14c73470a989a8907a03c258e01abfc

    • SHA512

      d332b3cefa05f13338ebfdf5d2f87de593d82371ad950d815a8b5e4c41f06fb8a8722ab9da77286c7d6da82effc2faa4b7de246943f86f39e91ce3c926deb8cd

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

    • RevcodeRat, WebMonitorRat

      WebMonitor is a remote access tool that you can use from any browser access to control, and monitor your phones, or PCs.

    • WebMonitor Payload

    • suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup

      suricata: ET MALWARE WebMonitor/RevCode RAT CnC Domain in DNS Lookup

    • UPX packed file

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

    • Unexpected DNS network traffic destination

      Network traffic to other servers than the configured DNS servers was detected on the DNS port.

    • Adds Run key to start application

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v6

Tasks