General

  • Target

    f4a6261e73362aa79839724e5e5ac16c

  • Size

    2.0MB

  • Sample

    240229-3vcv5agc74

  • MD5

    f4a6261e73362aa79839724e5e5ac16c

  • SHA1

    274257ebb7a5d42b4eced5fa2ab84225258dbc06

  • SHA256

    a47c47929456c062fbee77807051a224910b2218a9e0fe808dae74e5a955c9ef

  • SHA512

    d445560fd8276e8d0b45d6c86919a9f0eba1c62833ec432fe3e42b362a5a0113441287beb7e8182bd9d5d6ac0a2f8a7404bc1f168b43b49a98e04f7ee6eefa34

  • SSDEEP

    24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYJ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yz

Malware Config

Extracted

Family

quasar

Version

1.3.0.0

Botnet

EbayProfiles

C2

5.8.88.191:443

sockartek.icu:443

Mutex

QSR_MUTEX_0kBRNrRz5TDLEQouI0

Attributes
  • encryption_key

    MWhG6wsClMX8aJM2CVXT

  • install_name

    winsock.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    win defender run

  • subdirectory

    SubDir

Extracted

Family

azorult

C2

http://0x21.in:8000/_az/

Targets

    • Target

      f4a6261e73362aa79839724e5e5ac16c

    • Size

      2.0MB

    • MD5

      f4a6261e73362aa79839724e5e5ac16c

    • SHA1

      274257ebb7a5d42b4eced5fa2ab84225258dbc06

    • SHA256

      a47c47929456c062fbee77807051a224910b2218a9e0fe808dae74e5a955c9ef

    • SHA512

      d445560fd8276e8d0b45d6c86919a9f0eba1c62833ec432fe3e42b362a5a0113441287beb7e8182bd9d5d6ac0a2f8a7404bc1f168b43b49a98e04f7ee6eefa34

    • SSDEEP

      24576:su6J33O0c+JY5UZ+XC0kGso6FaI1IXgM6YmenKKSUlmDaGJTA4Pqa6jUvOkQwKYJ:2u0c++OCvkGs9Fap5aLKLkDl+dUvO9Yz

    • Azorult

      An information stealer that was first discovered in 2016, targeting browsing history and passwords.

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Detects Windows executables referencing non-Windows User-Agents

    • Detects executables containing common artifacts observed in infostealers

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Enumerates connected drives

      Attempts to read the root path of hard drives other than the default C: drive.

    • Looks up external IP address via web service

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

    • AutoIT Executable

      AutoIT scripts compiled to PE executables.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Matrix ATT&CK v13

Execution

Scheduled Task/Job

1
T1053

Persistence

Scheduled Task/Job

1
T1053

Privilege Escalation

Scheduled Task/Job

1
T1053

Discovery

Query Registry

2
T1012

System Information Discovery

3
T1082

Peripheral Device Discovery

1
T1120

Remote System Discovery

1
T1018

Tasks