Overview

overview

10

Static

static

4d88b67d23...46.exe

windows7_x64

10

4d88b67d23...46.exe

windows10_x64

10

Sharing

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General

  • Target

    4d88b67d2370313735a7b2b172972bf224bce4e742d276249d4f612261036346

  • Size

    108KB

  • Sample

    210505-59mdmp17sn

  • MD5

    b5ab0642f7fc7304d715000e262aa7d5

  • SHA1

    9a622c6d20bcd10f4328405ce844af46a3dbf407

  • SHA256

    4d88b67d2370313735a7b2b172972bf224bce4e742d276249d4f612261036346

  • SHA512

    2d9ee0a318e2a2ebc1f1d8de70d444b87bacfe800f18901f39b855ae292fd9454f47bff5b880d93432530fa19e0997df76d9cd26e3996f3a05e57b050c1550a1

Score
10/10
guloaderdownloaderguloader

Malware Config

Extracted

Family

guloader

C2

https://onedrive.live.com/download?cid=E61E5F3F655316FA&resid=E61E5F3F655316FA%21136&authkey=ADy1X8G-a-i3n0s

xor.base64

Targets

    • Target

      4d88b67d2370313735a7b2b172972bf224bce4e742d276249d4f612261036346

    • Size

      108KB

    • MD5

      b5ab0642f7fc7304d715000e262aa7d5

    • SHA1

      9a622c6d20bcd10f4328405ce844af46a3dbf407

    • SHA256

      4d88b67d2370313735a7b2b172972bf224bce4e742d276249d4f612261036346

    • SHA512

      2d9ee0a318e2a2ebc1f1d8de70d444b87bacfe800f18901f39b855ae292fd9454f47bff5b880d93432530fa19e0997df76d9cd26e3996f3a05e57b050c1550a1

    Score
    10/10
    guloaderdownloaderguloader

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Guloader Payload

      guloader

    • Checks QEMU agent state file

      Checks state file used by QEMU agent, possibly to detect virtualization.

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Virtualization/Sandbox Evasion

1
T1497

Credential Access

Discovery

Query Registry

1
T1012

Virtualization/Sandbox Evasion

1
T1497

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Tasks