Overview

overview

10

Static

static

10

Purchase_O...1.docx

windows7_x64

10

Purchase_O...1.docx

windows10_x64

1

Sharing

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General

  • Target

    Purchase_Order___PO220126-01.docx

  • Size

    10KB

  • Sample

    220127-pyd1pscgdl

  • MD5

    e3cfb506f0e65381ac420397932097f3

  • SHA1

    fae28a0f92ce9ff146ae85c8dbde71286500873e

  • SHA256

    0f1b744f01460d16ca025472b07896f43b49457096cbaa64d5298979ee8dd3ed

  • SHA512

    5f62af23e840e27f04cceb345235cb31c2d0863a184c0ac0ec3266a9fa7564ecebb2bebe555f9a0c1a02b41aaa011aada42abf2747e0f4ad2eddcdbb6b56449a

Score
10/10
guloaderdownloadersuricatawebsettings

Malware Config

Extracted

Rule
Microsoft Office WebSettings Relationship
C2

http://198.23.207.10/..W.w.........WWww.---wW--W-Ww--.w---wW...............Wbk-Wbk........wWWw/...-W--------wwwWw........Wnk...---WBK.----WwwW...wBkW-----w-w---Ww.wW......wwwWw.-_w.wbk

Targets

    • Target

      Purchase_Order___PO220126-01.docx

    • Size

      10KB

    • MD5

      e3cfb506f0e65381ac420397932097f3

    • SHA1

      fae28a0f92ce9ff146ae85c8dbde71286500873e

    • SHA256

      0f1b744f01460d16ca025472b07896f43b49457096cbaa64d5298979ee8dd3ed

    • SHA512

      5f62af23e840e27f04cceb345235cb31c2d0863a184c0ac0ec3266a9fa7564ecebb2bebe555f9a0c1a02b41aaa011aada42abf2747e0f4ad2eddcdbb6b56449a

    Score
    10/10
    guloaderdownloadersuricata

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

      suricata

    • suricata: ET MALWARE WBK Download from dotted-quad Host

      suricata: ET MALWARE WBK Download from dotted-quad Host

      suricata

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Abuses OpenXML format to download file from external location

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scripting

1
T1064

Exploitation for Client Execution

1
T1203

Persistence

Privilege Escalation

Defense Evasion

Scripting

1
T1064

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks