Overview

overview

10

Static

static

3

cryptolaemus

windows10-2004-x64

10

cryptolaemus

windows11-21h2-x64

10

Sharing

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General

  • Target

    31b494be325fc9c97031135886454b1370e5e3608c757f74784c6b6fb2fb5c99

  • Size

    6.4MB

  • Sample

    240423-zzjyfsca27

  • MD5

    eb0beafcb365cd20eb00ff9e19b73232

  • SHA1

    1a4470109418e1110588d52851e320ecefcba7de

  • SHA256

    31b494be325fc9c97031135886454b1370e5e3608c757f74784c6b6fb2fb5c99

  • SHA512

    8dff151e81b5ce3c4f51b1f24a6e7654c3008d81b6652e6d2f7fabc42d341e9db703b12f83ccf9471514498af3c1763ef97f132ad36302de8ccd984fbf52d52f

  • SSDEEP

    98304:DpgFmZKkYcZ4YSQrKF78eHm8Xdt6Zz55JJ9enfr:uFmZOcZtrKFFHm8t0NJJo

Score
10/10
quasaroffice04microsoftpersistencephishingspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

185.196.10.233:4782

Mutex

b0fcdfbd-bdd4-4a5d-8ab1-7217539d4db6

Attributes
  • encryption_key

    0EC03133971030F6D05E6D59F71626F6543BBE65

  • install_name

    gfdgfdg.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    fgfdhdgg

  • subdirectory

    gfgfgf

Targets

    • Target

      31b494be325fc9c97031135886454b1370e5e3608c757f74784c6b6fb2fb5c99

    • Size

      6.4MB

    • MD5

      eb0beafcb365cd20eb00ff9e19b73232

    • SHA1

      1a4470109418e1110588d52851e320ecefcba7de

    • SHA256

      31b494be325fc9c97031135886454b1370e5e3608c757f74784c6b6fb2fb5c99

    • SHA512

      8dff151e81b5ce3c4f51b1f24a6e7654c3008d81b6652e6d2f7fabc42d341e9db703b12f83ccf9471514498af3c1763ef97f132ad36302de8ccd984fbf52d52f

    • SSDEEP

      98304:DpgFmZKkYcZ4YSQrKF78eHm8Xdt6Zz55JJ9enfr:uFmZOcZtrKFFHm8t0NJJo

    Score
    10/10
    quasaroffice04microsoftpersistencephishingspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar payload

    • Adds Run key to start application

      persistence

    • Detected potential entity reuse from brand microsoft.

      phishingmicrosoft

    • 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

1
T1112

Credential Access

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks