Overview

overview

10

Static

static

10

2024-06-28...at.exe

windows7-x64

10

2024-06-28...at.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    2024-06-28_95b71f1e434be97a39998f49d32da40b_icedid_poet-rat_quasar-rat_xrat

  • Size

    4.9MB

  • Sample

    240629-aeck7syfrp

  • MD5

    95b71f1e434be97a39998f49d32da40b

  • SHA1

    ada21f3db506e3abb079b8cfb8c51a8924de2ed9

  • SHA256

    1ae218c37667a4a96d4ce7e19b19a5a56fa17b112f3bf6e94e78671ad6077168

  • SHA512

    c22511b254d29d22ea444cdf56ab9bb32a0e4d00c81b2d5e63a9394009ea7d4b747bc28a96cb845b62d998e91c3bcdf4f7e2dbaabc3f7dcdc92947b98c7e2559

  • SSDEEP

    98304:2uhNyndYGvr22SsaNYfdPBldt6+dBcjHtKRJ6B6IbzZLRIbzZY:5cM7jGIRp+K

Score
10/10
quasaroffice04spywaretrojanupx

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

mx5.deitie.asia:4495

Mutex

ebbf737a-dddd-43dd-9b0a-74831302455d

Attributes
  • encryption_key

    F8516D89A1DFD78BD8FF575BBC3AE828B47FF0E1

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Targets

    • Target

      2024-06-28_95b71f1e434be97a39998f49d32da40b_icedid_poet-rat_quasar-rat_xrat

    • Size

      4.9MB

    • MD5

      95b71f1e434be97a39998f49d32da40b

    • SHA1

      ada21f3db506e3abb079b8cfb8c51a8924de2ed9

    • SHA256

      1ae218c37667a4a96d4ce7e19b19a5a56fa17b112f3bf6e94e78671ad6077168

    • SHA512

      c22511b254d29d22ea444cdf56ab9bb32a0e4d00c81b2d5e63a9394009ea7d4b747bc28a96cb845b62d998e91c3bcdf4f7e2dbaabc3f7dcdc92947b98c7e2559

    • SSDEEP

      98304:2uhNyndYGvr22SsaNYfdPBldt6+dBcjHtKRJ6B6IbzZLRIbzZY:5cM7jGIRp+K

    Score
    10/10
    quasaroffice04spywaretrojanupx

    • 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

    • UPX dump on OEP (original entry point)

    • Drops startup file

    • Executes dropped EXE

    • Loads dropped DLL

    • UPX packed file

      Detects executables packed with UPX/modified UPX open source packer.

      upx
    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

1
T1012

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Tasks