Overview

overview

10

Static

static

638ea18bb1...46.exe

windows7-x64

10

638ea18bb1...46.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    638ea18bb14c65b7a4f34e94ad1cf7ba04e0cde85db754e65ea654e8bb42f046

  • Size

    116KB

  • Sample

    220724-z7ct4shadl

  • MD5

    290d5e5150cea94d380e5e161e8dc8fa

  • SHA1

    1d5947a824ec50a0e61146810a9eab89f34c11e6

  • SHA256

    638ea18bb14c65b7a4f34e94ad1cf7ba04e0cde85db754e65ea654e8bb42f046

  • SHA512

    5bddc04b8957ffc1461ee02930b3686dcae2988cd44f7e84eb0ffde21af8677351842086937f86c7df02c74b82e4fee9350ecf5e96fcde061b8069a02aa907c7

Score
10/10
guloaderdownloaderguloader

Malware Config

Extracted

Family

guloader

C2

https://drive.google.com/uc?export=download&id=1QH8JFoOIOhbcnrzfFUlcoNpabgmqAKM8

xor.base64

Targets

    • Target

      638ea18bb14c65b7a4f34e94ad1cf7ba04e0cde85db754e65ea654e8bb42f046

    • Size

      116KB

    • MD5

      290d5e5150cea94d380e5e161e8dc8fa

    • SHA1

      1d5947a824ec50a0e61146810a9eab89f34c11e6

    • SHA256

      638ea18bb14c65b7a4f34e94ad1cf7ba04e0cde85db754e65ea654e8bb42f046

    • SHA512

      5bddc04b8957ffc1461ee02930b3686dcae2988cd44f7e84eb0ffde21af8677351842086937f86c7df02c74b82e4fee9350ecf5e96fcde061b8069a02aa907c7

    Score
    10/10
    guloaderdownloaderguloader

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Guloader payload

      guloader

    • Legitimate hosting services abused for malware hosting/C2

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Web Service

1
T1102

Impact

Tasks