Overview

overview

10

Static

static

10

bf003c2d1d...31.exe

windows7-x64

10

bf003c2d1d...31.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    bf003c2d1dbdbf67bfdef720d2411224a2a44cdd09eb7f3118883d33c1878431

  • Size

    3.1MB

  • Sample

    240308-vg1q2ada6y

  • MD5

    5075bc76b66217bd9d2c322cea8026f0

  • SHA1

    a48ba9a4cf2ccca076c906d3491c98861c7d27bd

  • SHA256

    bf003c2d1dbdbf67bfdef720d2411224a2a44cdd09eb7f3118883d33c1878431

  • SHA512

    14169452f8e612d3473e2da17624db1add06b48fdf3d958961d51e9edc786a8286fb210d60bc57b79dc18ee6c778e595874be77b7efe04ac839eb54c9bc3a73c

  • SSDEEP

    49152:Gvkt62XlaSFNWPjljiFa2RoUYIspWIBBarGLoGdGTHHB72eh2NT:Gv462XlaSFNWPjljiFXRoUYIWWIBJ

Score
10/10
quasarbuild1spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

build1

C2

testnetwork123.ddns.net:4782

Mutex

b4867e2a-84d0-48aa-a9d7-3bec9fee8df9

Attributes
  • encryption_key

    EFAB993C2F127EF7DC90902AD3F43CBA897B6832

  • install_name

    WinVs.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    WindowsVS

  • subdirectory

    SubDir

Targets

    • Target

      bf003c2d1dbdbf67bfdef720d2411224a2a44cdd09eb7f3118883d33c1878431

    • Size

      3.1MB

    • MD5

      5075bc76b66217bd9d2c322cea8026f0

    • SHA1

      a48ba9a4cf2ccca076c906d3491c98861c7d27bd

    • SHA256

      bf003c2d1dbdbf67bfdef720d2411224a2a44cdd09eb7f3118883d33c1878431

    • SHA512

      14169452f8e612d3473e2da17624db1add06b48fdf3d958961d51e9edc786a8286fb210d60bc57b79dc18ee6c778e595874be77b7efe04ac839eb54c9bc3a73c

    • SSDEEP

      49152:Gvkt62XlaSFNWPjljiFa2RoUYIspWIBBarGLoGdGTHHB72eh2NT:Gv462XlaSFNWPjljiFXRoUYIWWIBJ

    Score
    10/10
    quasarbuild1spywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    behavioral1behavioral2

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Defense Evasion

Credential Access

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Remote System Discovery

1
T1018

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks