Overview

overview

10

Static

static

10

buff.exe

windows7-x64

10

buff.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    buff.exe

  • Size

    3.1MB

  • Sample

    240707-ks7nlszhrh

  • MD5

    b4331fcabc3c2d49951fae44870ebe91

  • SHA1

    6998f4c7c6f2306f4245e59ce3d8bc5fc13bf94f

  • SHA256

    3a05452acbb8d384d59428cb8194fb760e5de23ef581a07f168ff840d8e2fea9

  • SHA512

    1de347b19d4a7187df2ffd8d141d5a363aabcf2425b66b482a6fed7133a805e6ab7d6064f29100f83725f0e2e2394da592fbffb574752db015f58206202b007b

  • SSDEEP

    49152:WvXG42pda6D+/PjlLOlg6yQipVKwRJ6hbR3LoGdGCITHHB72eh2NT:Wv242pda6D+/PjlLOlZyQipVKwRJ6D2

Score
10/10
quasarmassdmspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

massdm

C2

192.168.1.156:4782

r-minolta.gl.at.ply.gg:63431
Mutex

7a0df206-428b-4b7b-939a-21fd6eb0a342

Attributes
  • encryption_key

    EB77EF1E2C1E9FC0CC580EBFBB1E68F8B012F37E

  • install_name

    massdm.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Update

  • subdirectory

    SubDir

Targets

    • Target

      buff.exe

    • Size

      3.1MB

    • MD5

      b4331fcabc3c2d49951fae44870ebe91

    • SHA1

      6998f4c7c6f2306f4245e59ce3d8bc5fc13bf94f

    • SHA256

      3a05452acbb8d384d59428cb8194fb760e5de23ef581a07f168ff840d8e2fea9

    • SHA512

      1de347b19d4a7187df2ffd8d141d5a363aabcf2425b66b482a6fed7133a805e6ab7d6064f29100f83725f0e2e2394da592fbffb574752db015f58206202b007b

    • SSDEEP

      49152:WvXG42pda6D+/PjlLOlg6yQipVKwRJ6hbR3LoGdGCITHHB72eh2NT:Wv242pda6D+/PjlLOlZyQipVKwRJ6D2

    Score
    10/10
    quasarmassdmspywaretrojan

    • 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

Scheduled Task

1
T1053.005

Persistence

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

Privilege Escalation

Scheduled Task/Job

1
T1053

Scheduled Task

1
T1053.005

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