Overview

overview

10

Static

static

1

rOferta_SK...77.wsf

windows7-x64

10

rOferta_SK...77.wsf

windows10-2004-x64

8

Sharing

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General

  • Target

    rOferta_SKGNMECLemnedefinitionen353523577.wsf

  • Size

    17KB

  • Sample

    240419-v6jh2sag88

  • MD5

    ed7122bfc1517425a483908cff86d950

  • SHA1

    d71986894ac69f6958f3e126bec9eaabea50fa5c

  • SHA256

    813142e22c4d2a79a49e1f96a9bea8b14e13a67eb9d35922b5ac0b88b33aec6a

  • SHA512

    2fae96a3d31de6195ddf196d1b4abd2c1a7564347805838f701e328ef2a823462c45d09232d7ddecd7bacacec5652808194e77c2f8f674d06cc4a61a34976636

  • SSDEEP

    384:vxuMLgrXuO5tyVsCouP+fVMD0BoqPrLjibxqWW4ZxQbIeMgJQc+Nzuz:vxtVOvyn3P+fC6fXji3+MNS

Score
10/10
guloaderdownloaderpersistence

Malware Config

Targets

    • Target

      rOferta_SKGNMECLemnedefinitionen353523577.wsf

    • Size

      17KB

    • MD5

      ed7122bfc1517425a483908cff86d950

    • SHA1

      d71986894ac69f6958f3e126bec9eaabea50fa5c

    • SHA256

      813142e22c4d2a79a49e1f96a9bea8b14e13a67eb9d35922b5ac0b88b33aec6a

    • SHA512

      2fae96a3d31de6195ddf196d1b4abd2c1a7564347805838f701e328ef2a823462c45d09232d7ddecd7bacacec5652808194e77c2f8f674d06cc4a61a34976636

    • SSDEEP

      384:vxuMLgrXuO5tyVsCouP+fVMD0BoqPrLjibxqWW4ZxQbIeMgJQc+Nzuz:vxtVOvyn3P+fC6fXji3+MNS

    Score
    10/10
    guloaderdownloaderpersistence

    • Guloader,Cloudeye

      A shellcode based downloader first seen in 2020.

      downloaderguloader

    • Blocklisted process makes network request

    • Checks computer location settings

      Looks up country code configured in the registry, likely geofence.

    • Adds Run key to start application

      persistence

    • Suspicious use of NtCreateThreadExHideFromDebugger

    • 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

2
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks