Overview

overview

10

Static

static

3

B658C5D7ED...50.exe

windows7-x64

10

B658C5D7ED...50.exe

windows10-2004-x64

10

Sharing

Copy URL
Twitter E-mail

General

  • Target

    B658C5D7ED9CD9D40992885120E78450.exe

  • Size

    3.3MB

  • Sample

    241102-vmdtfszhql

  • MD5

    b658c5d7ed9cd9d40992885120e78450

  • SHA1

    a96eede3e39827b1f975c1dfdec8917b981f1330

  • SHA256

    36c5e613a6f16466cfbea6b74f926cb9d357bf78e1e229d9f47f38e7b78a7291

  • SHA512

    62e9bfc7fac1e3a26ba3578f49d800793c5ffa02bb61786c600c69808424047285a297438075c40539fb96cbea4652a1bfdcf36e5b86b9a0687c6f67502855be

  • SSDEEP

    98304:smDurDWcs5SUUhjH5iv1B/fGJD21MV4tJ+r3dXmJ:smOW5Chj5iv1B/fED21mrgJ

Score
10/10
quasaroffice04discoveryspywaretrojan

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

83.168.110.87:4782

Mutex

e7550a93-a385-490f-a2f8-5d9e1b5fd98b

Attributes
  • encryption_key

    19FB99CC4D38C38330C88E623B7FD5B15277B769

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    puttystart

  • subdirectory

    SubDir

Targets

    • Target

      B658C5D7ED9CD9D40992885120E78450.exe

    • Size

      3.3MB

    • MD5

      b658c5d7ed9cd9d40992885120e78450

    • SHA1

      a96eede3e39827b1f975c1dfdec8917b981f1330

    • SHA256

      36c5e613a6f16466cfbea6b74f926cb9d357bf78e1e229d9f47f38e7b78a7291

    • SHA512

      62e9bfc7fac1e3a26ba3578f49d800793c5ffa02bb61786c600c69808424047285a297438075c40539fb96cbea4652a1bfdcf36e5b86b9a0687c6f67502855be

    • SSDEEP

      98304:smDurDWcs5SUUhjH5iv1B/fGJD21MV4tJ+r3dXmJ:smOW5Chj5iv1B/fED21mrgJ

    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

    • Loads dropped DLL

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks