Overview

overview

10

Static

static

3

78b9f217ca...18.exe

windows7-x64

10

78b9f217ca...18.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    78b9f217ca7f78a34e558ecc5e61bbe1_JaffaCakes118

  • Size

    247KB

  • Sample

    240527-lq9kvsgd69

  • MD5

    78b9f217ca7f78a34e558ecc5e61bbe1

  • SHA1

    3a6f51af13d6357ff3718b82490fc19b203ea5fa

  • SHA256

    d87f8f1d4a38fc2d15dac5c57f74fd61e1c712e4684c10db18ff5fc00ed07bac

  • SHA512

    67dbebf6f00309fd2928fc75b8afd940d4a598c8b96c7fa1a6ec672e9dce7aaaabc27a992c7b7c7528f7866f648f1e5e1718a669f64c7731e77165beff966527

  • SSDEEP

    6144:vi8ju8hJsKdmmBPMF6FKAw0gfE1cVr78eZRduif/:vM8LdBCFKKV0gccVHxf/

Score
10/10
quasaroffice04spywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

Office04

C2

ipaixincungduoc.hopto.org:3389

ipaixincungok.hopto.org:3389
Mutex

QSR_MUTEX_nNZSBb4AKQyYo1cS8B

Attributes
  • encryption_key

    CLfGeDzyrgMe5rMRQTJb

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      78b9f217ca7f78a34e558ecc5e61bbe1_JaffaCakes118

    • Size

      247KB

    • MD5

      78b9f217ca7f78a34e558ecc5e61bbe1

    • SHA1

      3a6f51af13d6357ff3718b82490fc19b203ea5fa

    • SHA256

      d87f8f1d4a38fc2d15dac5c57f74fd61e1c712e4684c10db18ff5fc00ed07bac

    • SHA512

      67dbebf6f00309fd2928fc75b8afd940d4a598c8b96c7fa1a6ec672e9dce7aaaabc27a992c7b7c7528f7866f648f1e5e1718a669f64c7731e77165beff966527

    • SSDEEP

      6144:vi8ju8hJsKdmmBPMF6FKAw0gfE1cVr78eZRduif/:vM8LdBCFKKV0gccVHxf/

    Score
    10/10
    quasaroffice04spywaretrojan

    • 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.

    • Looks up external IP address via web service

      Uses a legitimate IP lookup service to find the infected system's external IP.

    • Suspicious use of SetThreadContext

    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