Overview

overview

10

Static

static

10

Summrs.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    Summrs.exe

  • Size

    3.1MB

  • Sample

    250101-fa5dbaxnbl

  • MD5

    77d34210e82e24fb0b5adbb1094f272f

  • SHA1

    bc20888016a83b6628e7ab460e68b0a467bf3bf3

  • SHA256

    d8f7896edc45702da8a6c984d10fa00d2ea3c73c0fa8b08b689cf89ff1e5cd0e

  • SHA512

    766f0f97752fd0e63d08474f1d4c32a7ca88854f58d2e59903f2218134136bed45e9fbb6d375fcc3677bca4b95a1aec3e0830e27f510bbf4f88e04e6814f4a04

  • SSDEEP

    49152:CvgG42pda6D+/PjlLOlg6yQipVSyRJ6hbR3LoGd4jTHHB72eh2NT:Cvj42pda6D+/PjlLOlZyQipVSyRJ6DI

Score
10/10
quasaroffice04discoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

89.187.179.:4782

185.236.200.245:4782
Mutex

af4f2a23-513c-4ee2-8078-c3d27d9ee2fb

Attributes
  • encryption_key

    1FFE2594933531CEBE3AD34C62F3DC58273CA88E

  • install_name

    Isass.exe

  • log_directory

    Fxs-Temp

  • reconnect_delay

    1000

  • startup_key

    Quasar Client Startup

  • subdirectory

    da-DT

Targets

    • Target

      Summrs.exe

    • Size

      3.1MB

    • MD5

      77d34210e82e24fb0b5adbb1094f272f

    • SHA1

      bc20888016a83b6628e7ab460e68b0a467bf3bf3

    • SHA256

      d8f7896edc45702da8a6c984d10fa00d2ea3c73c0fa8b08b689cf89ff1e5cd0e

    • SHA512

      766f0f97752fd0e63d08474f1d4c32a7ca88854f58d2e59903f2218134136bed45e9fbb6d375fcc3677bca4b95a1aec3e0830e27f510bbf4f88e04e6814f4a04

    • SSDEEP

      49152:CvgG42pda6D+/PjlLOlg6yQipVSyRJ6hbR3LoGd4jTHHB72eh2NT:Cvj42pda6D+/PjlLOlZyQipVSyRJ6DI

    Score
    10/10
    quasaroffice04discoveryspywaretrojan

    • Quasar RAT

      Quasar is an open source Remote Access Tool.

      trojanspywarequasar

    • Quasar family

      quasar

    • Quasar payload

    • Checks computer location settings

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

    • Executes dropped EXE

    • Drops file in System32 directory

    behavioral1

MITRE ATT&CK Enterprise v15

Tasks