Overview

overview

10

Static

static

10

New folder.zip

windows11-21h2-x64

8

Sharing

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General

  • Target

    New folder.zip

  • Size

    13.3MB

  • Sample

    240630-nhscqazfmm

  • MD5

    1694ee8a09ebbe56390c44bae9307406

  • SHA1

    0f1886e199b60d9abd87e786e49f8a0557031052

  • SHA256

    7aa6c2e38366d1b553ce56e67f35cfa687e4ba0f7c3eaa404f5ba2449af9fbe5

  • SHA512

    8417fa25bd4769e747e539804c92223ae88c1879a8c9f3aad5e3a2f990db47d1cf319f3777cffc259fe6bff0312664f8621434419fc427d67aafdc56aa834c18

  • SSDEEP

    393216:0PfDzPD8hpXYoKMFJ4PT61E0WTTPuRr0r1+:0Pf/PY7MPTd0WTatw1+

Score
10/10
quasaroffice04persistenceprivilege_escalation

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

10.240.115.45:4782

Mutex

2cc201c7-b02e-4a34-8806-aa9a8d33ae2d

Attributes
  • encryption_key

    64024FEFC383421D2550E88D4DBE252B6BA53116

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      New folder.zip

    • Size

      13.3MB

    • MD5

      1694ee8a09ebbe56390c44bae9307406

    • SHA1

      0f1886e199b60d9abd87e786e49f8a0557031052

    • SHA256

      7aa6c2e38366d1b553ce56e67f35cfa687e4ba0f7c3eaa404f5ba2449af9fbe5

    • SHA512

      8417fa25bd4769e747e539804c92223ae88c1879a8c9f3aad5e3a2f990db47d1cf319f3777cffc259fe6bff0312664f8621434419fc427d67aafdc56aa834c18

    • SSDEEP

      393216:0PfDzPD8hpXYoKMFJ4PT61E0WTTPuRr0r1+:0Pf/PY7MPTd0WTatw1+

    Score
    8/10
    persistenceprivilege_escalation

    • Drops file in Drivers directory

    • Event Triggered Execution: Component Object Model Hijacking

      Adversaries may establish persistence by executing malicious content triggered by hijacked references to Component Object Model (COM) objects.

      persistenceprivilege_escalation

    • Executes dropped EXE

    • Loads dropped DLL

    • 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.

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Event Triggered Execution

2
T1546

Netsh Helper DLL

1
T1546.007

Component Object Model Hijacking

1
T1546.015

Boot or Logon Autostart Execution

1
T1547

Registry Run Keys / Startup Folder

1
T1547.001

Privilege Escalation

Event Triggered Execution

2
T1546

Netsh Helper DLL

1
T1546.007

Component Object Model Hijacking

1
T1546.015

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

4
T1012

Peripheral Device Discovery

2
T1120

System Information Discovery

3
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks