General

  • Target

    2abc4eca6e91c8766cf9fce20d24ce847fcf17dc3dd67c94d332b12061154258.unknown

  • Size

    72KB

  • Sample

    240730-bp2hravejg

  • MD5

    535cf27993ef8db14c45b5f387c74728

  • SHA1

    88493415cad54c3d49634248224977de88e719d3

  • SHA256

    2abc4eca6e91c8766cf9fce20d24ce847fcf17dc3dd67c94d332b12061154258

  • SHA512

    3dfb9f9148850247ec7f37d1553e891ac5b69c2cec8ebe47ee772665f573863f689099619f8de950e2ad0a7520765d260a3a37f428a60922d63462ac7aaea780

  • SSDEEP

    1536:Gu5ubqzxwDly+vz4yhNJ+ujU60QNq/V0BTko0+oamlv3Wjsqnk:H5NwB9z9JbpmAgojIlv5qk

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

192.228.105.2:4782

Mutex

4ea5c3e6-40ed-401e-8a68-e96daa2a46a9

Attributes
  • encryption_key

    0FE4B3C613E3E61C318BA9D568DC6A8C56D2E505

  • install_name

    jorder.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    svchost

  • subdirectory

    SubDir

Targets

    • Target

      jdconstructnOrder‮fdp..exe

    • Size

      288KB

    • MD5

      7e900eb50f9dc1cb5c68ffea4b9e7bcc

    • SHA1

      4dcc14dc2b98fbc171308fb55b5b8551dd96ea96

    • SHA256

      8636f8c4fe1fe4859a3feec23a0cecf12391ddbffbb3d2bec5efe8f3aaac74b3

    • SHA512

      a77aeffc4f80358940e40789a67f67df5adc1bde4790a400665a98871498b10c3206981d3f18efa1149c9ec246f0343d133dd77de4f5a1f5816506a204276b1a

    • SSDEEP

      3072:6q6+ouCpk2mpcWJ0r+QNTBfRuk1qXkXRA4XTZK:6ldk1cWQRNTBpd8t

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

    • Quasar payload

    • Blocklisted process makes network request

    • Command and Scripting Interpreter: PowerShell

      Powershell Invoke Web Request.

    • Downloads MZ/PE file

    • .NET Reactor proctector

      Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.

    • Checks computer location settings

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

    • Executes dropped EXE

    • Adds Run key to start application

MITRE ATT&CK Enterprise v15

Tasks