Overview

overview

10

Static

static

948d025ac7...27.msi

windows7_x64

10

948d025ac7...27.msi

windows10-2004_x64

10

Sharing

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General

  • Target

    948d025ac7e38d02364a7e41ed0d8294965c724e3981a05b05aafd49f068d127

  • Size

    84KB

  • Sample

    220701-rpg24shec5

  • MD5

    0cf8b3763263114cb1ea854e3cfd4d31

  • SHA1

    eebfeb10a0f0560968d6caa610c3ab15e35cb305

  • SHA256

    948d025ac7e38d02364a7e41ed0d8294965c724e3981a05b05aafd49f068d127

  • SHA512

    be2aa934190ca684aa64e37417dc6b3f156417b454168713e172416733b93e72e684d6898eead1c0f0f8e7cc2fcb891124544623b6a5bbd7c1c8596d7e9ea03f

Score
10/10
guloaderdownloaderguloaderpersistence

Malware Config

Extracted

Family

guloader

C2

http://cermiamakmur.com/ii/11feb_encrypted_B16478F.bin

xor.base64

Targets

    • Target

      948d025ac7e38d02364a7e41ed0d8294965c724e3981a05b05aafd49f068d127

    • Size

      84KB

    • MD5

      0cf8b3763263114cb1ea854e3cfd4d31

    • SHA1

      eebfeb10a0f0560968d6caa610c3ab15e35cb305

    • SHA256

      948d025ac7e38d02364a7e41ed0d8294965c724e3981a05b05aafd49f068d127

    • SHA512

      be2aa934190ca684aa64e37417dc6b3f156417b454168713e172416733b93e72e684d6898eead1c0f0f8e7cc2fcb891124544623b6a5bbd7c1c8596d7e9ea03f

    Score
    10/10
    guloaderdownloaderguloaderpersistence

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Guloader Payload

      guloader

    • Executes dropped EXE

    • Adds Run key to start application

      persistence

    • Enumerates connected drives

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

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

Query Registry

2
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks