Overview

overview

10

Static

static

3

9a4cfa63e7...80.exe

windows7-x64

10

9a4cfa63e7...80.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    9a4cfa63e71d64fe29c002dade42cb80

  • Size

    132KB

  • Sample

    240214-am58gsdg32

  • MD5

    9a4cfa63e71d64fe29c002dade42cb80

  • SHA1

    fee9dd36e12020a81d8d5b7fbdf2e4d4974cffe8

  • SHA256

    e37b6c9937f5d466286ab7312fb36e8717d9dac0bcee4eacb62bbf0d03bcf0a0

  • SHA512

    2a6209196313941ac1c3ff0c42f70315fc84e7efbc85326e0708ce00fdb1dd03c31774c5b84e180a700ec397758961e24aeb58961d3608ab7b402cc02577fd58

  • SSDEEP

    1536:tNA9IuclaDPyC1F6oVSDwxDaBXnwyk0k:trQDx8oVGkmwyk0k

Score
10/10
guloaderdownloaderguloaderpersistence

Malware Config

Extracted

Family

guloader

C2

https://drive.google.com/uc?export=download&id=1O1gMNFwJRw0M-JFGN_RrjxggpKltAEVy

xor.base64

Targets

    • Target

      9a4cfa63e71d64fe29c002dade42cb80

    • Size

      132KB

    • MD5

      9a4cfa63e71d64fe29c002dade42cb80

    • SHA1

      fee9dd36e12020a81d8d5b7fbdf2e4d4974cffe8

    • SHA256

      e37b6c9937f5d466286ab7312fb36e8717d9dac0bcee4eacb62bbf0d03bcf0a0

    • SHA512

      2a6209196313941ac1c3ff0c42f70315fc84e7efbc85326e0708ce00fdb1dd03c31774c5b84e180a700ec397758961e24aeb58961d3608ab7b402cc02577fd58

    • SSDEEP

      1536:tNA9IuclaDPyC1F6oVSDwxDaBXnwyk0k:trQDx8oVGkmwyk0k

    Score
    10/10
    guloaderdownloaderguloaderpersistence

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Guloader payload

      guloader

    • Adds Run key to start application

      persistence

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Resource Development

Reconnaissance

Tasks