General

  • Target

    Quote RFQ #00926720250204.pdf(39kb).com.exe

  • Size

    3.6MB

  • Sample

    250211-v1mzaatqaq

  • MD5

    07a4d2a1981e4159e744e3f0bb8d655f

  • SHA1

    fe47d1646972e85667408a28d8db2f2c17b7a313

  • SHA256

    ce54308e4ba6119f23d6e430e936d1f7dc5f8156c61003e05883c7adbf94e9d9

  • SHA512

    b03cd73c43a0e6a536857b523fa5c96910bf8a73002bb4bd7b8315f951eb9e1f625e3e3804a31cec689b6d8a427df600547cf4becf8494c3c3397a2382a55a4e

  • SSDEEP

    98304:6inq/fUlXQu4UB5uq8yPk4KVJgGSg/RSpSTddPTC:3q/fyD4UAlyfKV7Sg/QwTrP

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

ES CODE

C2

twart.myfirewall.org:9792

rency.ydns.eu:5287

wqo9.firewall-gateway.de:8841

code1.ydns.eu:5287

wqo9.firewall-gateway.de:9792

Mutex

025351e291-5d1041-4fa37-932c7-8L69aeiQec514992

Attributes
  • encryption_key

    3145298725BA5E0DD56E87FFE3F8898EA81E6EDA

  • install_name

    Excelworkbook.exe

  • log_directory

    Logs

  • reconnect_delay

    6000

  • startup_key

    pdfdocument

  • subdirectory

    SubDir

Targets

    • Target

      Quote RFQ #00926720250204.pdf(39kb).com.exe

    • Size

      3.6MB

    • MD5

      07a4d2a1981e4159e744e3f0bb8d655f

    • SHA1

      fe47d1646972e85667408a28d8db2f2c17b7a313

    • SHA256

      ce54308e4ba6119f23d6e430e936d1f7dc5f8156c61003e05883c7adbf94e9d9

    • SHA512

      b03cd73c43a0e6a536857b523fa5c96910bf8a73002bb4bd7b8315f951eb9e1f625e3e3804a31cec689b6d8a427df600547cf4becf8494c3c3397a2382a55a4e

    • SSDEEP

      98304:6inq/fUlXQu4UB5uq8yPk4KVJgGSg/RSpSTddPTC:3q/fyD4UAlyfKV7Sg/QwTrP

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar family

    • Quasar payload

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

MITRE ATT&CK Enterprise v15

Tasks