Overview

overview

10

Static

static

10

ff265b18fa...87.exe

windows7-x64

10

ff265b18fa...87.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    ff265b18fa85ef509bace3704e82123869830858d2d29193fa369e77eaa40887

  • Size

    3.1MB

  • Sample

    240424-21sm4abc6w

  • MD5

    9754bcea9ad1e5be5d7edddf86cc8937

  • SHA1

    0a7f8c93c0cb54fd832635a3de08c5a9ba58fbb0

  • SHA256

    ff265b18fa85ef509bace3704e82123869830858d2d29193fa369e77eaa40887

  • SHA512

    2d8c2a0c6e9c7b475bc68cd039a8e7963a2e6ef1782da169d518f6e2a55b353588f9e2852d26cef42511891545a1ca1d2c4397381f63ba020c099f4b545d12a2

  • SSDEEP

    49152:7vbI22SsaNYfdPBldt698dBcjHdr+PJHlLoGd0QTHHB72eh2NT:7vk22SsaNYfdPBldt6+dBcjHdr+n

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

77.1000.147.5:5000

Mutex

8645f334-f417-44f7-8b2f-c2a2593ddd85

Attributes
  • encryption_key

    6DC4F525708459987F1DD5D6736CBEE3F4BF2C3F

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      ff265b18fa85ef509bace3704e82123869830858d2d29193fa369e77eaa40887

    • Size

      3.1MB

    • MD5

      9754bcea9ad1e5be5d7edddf86cc8937

    • SHA1

      0a7f8c93c0cb54fd832635a3de08c5a9ba58fbb0

    • SHA256

      ff265b18fa85ef509bace3704e82123869830858d2d29193fa369e77eaa40887

    • SHA512

      2d8c2a0c6e9c7b475bc68cd039a8e7963a2e6ef1782da169d518f6e2a55b353588f9e2852d26cef42511891545a1ca1d2c4397381f63ba020c099f4b545d12a2

    • SSDEEP

      49152:7vbI22SsaNYfdPBldt698dBcjHdr+PJHlLoGd0QTHHB72eh2NT:7vk22SsaNYfdPBldt6+dBcjHdr+n

    Score
    10/10
    quasaroffice04spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.

    • Detects executables containing common artifacts observed in infostealers

    • Checks computer location settings

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

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks