Resubmissions

04-02-2025 23:52

250204-3w3syazqej 10

04-02-2025 23:15

250204-28xa9axlhx 10

General

  • Target

    extracted_payload-cleaned - Copy.exe

  • Size

    5.8MB

  • Sample

    250204-3w3syazqej

  • MD5

    bcff5526d0e5da9524a89b2dcc809cee

  • SHA1

    b8c321683058f79eb810e73d338caf292fc04611

  • SHA256

    a0161d709793136e815c902d928421ca5447ac394449a35ee529d85aed318251

  • SHA512

    a9101d4991c49c229b324e5313a9f92cdb489fa1aab68970cdf8189029ad4f30aa03a97c2441be800eec9995042656bc180d00632e8400f43b0c57c023185a53

  • SSDEEP

    98304:dVzA+NolR3oceUQ1spbvuKSUJ17LrbH4q8y1iYVk1OUkh54oZdxkOHYSM:7PNO3K1spbmxcrbH4a1iYVk1O15DUC

Malware Config

Extracted

Family

quasar

Version

1.4.0

Botnet

v15.0 | Fifa23

C2

private123.duckdns.org:8808

dofucks.com:8808

Mutex

c398e98c-136e-4007-ab40-e179829f338c

Attributes
  • encryption_key

    C84CB6134701741C5122A14FACDB67C8CFA9C0AB

  • install_name

    .exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    $sxr-seroxen

Targets

    • Target

      extracted_payload-cleaned - Copy.exe

    • Size

      5.8MB

    • MD5

      bcff5526d0e5da9524a89b2dcc809cee

    • SHA1

      b8c321683058f79eb810e73d338caf292fc04611

    • SHA256

      a0161d709793136e815c902d928421ca5447ac394449a35ee529d85aed318251

    • SHA512

      a9101d4991c49c229b324e5313a9f92cdb489fa1aab68970cdf8189029ad4f30aa03a97c2441be800eec9995042656bc180d00632e8400f43b0c57c023185a53

    • SSDEEP

      98304:dVzA+NolR3oceUQ1spbvuKSUJ17LrbH4q8y1iYVk1OUkh54oZdxkOHYSM:7PNO3K1spbmxcrbH4a1iYVk1O15DUC

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Seroxen family

    • Seroxen, Ser0xen

      Seroxen or SeroXen aka Ser0Xen is a trojan fist disovered in late 2022.

    • Suspicious use of NtCreateUserProcessOtherParentProcess

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • Enumerates connected drives

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

    • Drops file in System32 directory

    • Suspicious use of SetThreadContext

    • UPX packed file

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

MITRE ATT&CK Enterprise v15

Tasks