Overview

overview

10

Static

static

3

1157923e5c...18.exe

windows7-x64

7

1157923e5c...18.exe

windows10-2004-x64

10

Sharing

Copy URL Twitter E-mail

General

  • Target
    1157923e5cd51d747faf266da4e22de5_JaffaCakes118
  • Size 621KB
  • Sample240504-dsc1nsbg61
  • SHA256 9f44d74b5fe2e6353074ba70ade88d1747f038ca9902be34cb2ca95eecafc760
  • MD5 SHA1 SHA512 SSDEEP
Score
10/10
webmonitorbackdoorinfostealerpersistenceratupx

Malware Config

Extracted

Family

  • webmonitor

C2

  • perlhabour.wm01.to:443

Attributes
  • config_key

    XNmE4WPjibOWPGiI4YZB52MvfFKluIbw

  • private_key

    RpKoGNosA

  • url_path

    /recv4.php

Targets

    • Target
      1157923e5cd51d747faf266da4e22de5_JaffaCakes118
    • Size 621KB
    • SHA256 9f44d74b5fe2e6353074ba70ade88d1747f038ca9902be34cb2ca95eecafc760
    • MD5 SHA1 SHA512 SSDEEP
    Score
    10/10
    webmonitorbackdoorinfostealerpersistenceratupx

    • RevcodeRat, WebMonitorRat

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

      backdoorratinfostealerwebmonitor

    • WebMonitor payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

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

      upx

    • 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

      persistence

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks