Overview

overview

10

Static

static

3

4456b93fa8...18.exe

windows7-x64

5

4456b93fa8...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    4456b93fa84ead0e6c5020d665120262_JaffaCakes118

  • Size

    80KB

  • Sample

    240515-dvjk8sfa84

  • MD5

    4456b93fa84ead0e6c5020d665120262

  • SHA1

    3c30e119261d2ed1b57887bee9e2bb895f120500

  • SHA256

    b7eb38f8a922a1344be7186fbf3169e0d130b91498dfae583b9b6d942b40cdd9

  • SHA512

    3c2b66cfefd00a5a8cd55b13275bec599213bc9695c3d2b69c2ed9198fb205dd9d899243d1398bb0c58a49fbc0ef5d3461a4589db69d38d5dec233272b8807e3

  • SSDEEP

    1536:Q5aO0FX8PbNNkd73OKOeAXmfp/tbM5jx:Q0X8znkd73O1X29Mv

Score
10/10
guloaderdownloaderguloader

Malware Config

Extracted

Family

guloader

C2

https://mwrc.ca/a/sh_encrypted_F09C70F.bin

xor.base64

Targets

    • Target

      4456b93fa84ead0e6c5020d665120262_JaffaCakes118

    • Size

      80KB

    • MD5

      4456b93fa84ead0e6c5020d665120262

    • SHA1

      3c30e119261d2ed1b57887bee9e2bb895f120500

    • SHA256

      b7eb38f8a922a1344be7186fbf3169e0d130b91498dfae583b9b6d942b40cdd9

    • SHA512

      3c2b66cfefd00a5a8cd55b13275bec599213bc9695c3d2b69c2ed9198fb205dd9d899243d1398bb0c58a49fbc0ef5d3461a4589db69d38d5dec233272b8807e3

    • SSDEEP

      1536:Q5aO0FX8PbNNkd73OKOeAXmfp/tbM5jx:Q0X8znkd73O1X29Mv

    Score
    10/10
    guloaderdownloaderguloader

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Guloader payload

      guloader

    • Suspicious use of NtSetInformationThreadHideFromDebugger

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Subvert Trust Controls

1
T1553

Install Root Certificate

1
T1553.004

Modify Registry

1
T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks