Analysis

  • max time kernel
    146s
  • max time network
    152s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2024 20:57

General

  • Target

    Loltimo.exe

  • Size

    3.1MB

  • MD5

    afb2e5dad453db7cf42339f806f37532

  • SHA1

    90fa9e8b4ed9d086d67b9f86dc57151db1637ca9

  • SHA256

    a4b343420149aabd8ef8af687bcb7b252af476c4c8fdad177c3cf5d65ccf912e

  • SHA512

    72c3474f11a90bd904957030d019611c460dfa66524e0113b40b18a4ae0f3d81d56ae125fa2f247b266e71a11fcaad5884987036563e9464dc2e973877f79f3f

  • SSDEEP

    49152:Hv+lL26AaNeWgPhlmVqvMQ7XSKwkamEoXdl3THHB72eh2NT:HvuL26AaNeWgPhlmVqkQ7XSK9af8

Malware Config

Extracted

Family

quasar

Version

1.4.1

Botnet

Office04

C2

Ingrid78-20703.portmap.host:20703

Mutex

e51e2b65-e963-4051-9736-67d57ed46798

Attributes
  • encryption_key

    AEA258EF65BF1786F0F767C0BE2497ECC304C46F

  • install_name

    Client.exe

  • log_directory

    Logs

  • reconnect_delay

    3000

  • startup_key

    Quasar Client Startup

  • subdirectory

    SubDir

Signatures

  • Quasar RAT

    Quasar is an open source Remote Access Tool.

  • Quasar family
  • Quasar payload 3 IoCs
  • Executes dropped EXE 1 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\Loltimo.exe
    "C:\Users\Admin\AppData\Local\Temp\Loltimo.exe"
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:2240
    • C:\Windows\system32\schtasks.exe
      "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
      2⤵
      • Scheduled Task/Job: Scheduled Task
      PID:2080
    • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe
      "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2388
      • C:\Windows\system32\schtasks.exe
        "schtasks" /create /tn "Quasar Client Startup" /sc ONLOGON /tr "C:\Users\Admin\AppData\Roaming\SubDir\Client.exe" /rl HIGHEST /f
        3⤵
        • Scheduled Task/Job: Scheduled Task
        PID:584

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\SubDir\Client.exe

    Filesize

    3.1MB

    MD5

    afb2e5dad453db7cf42339f806f37532

    SHA1

    90fa9e8b4ed9d086d67b9f86dc57151db1637ca9

    SHA256

    a4b343420149aabd8ef8af687bcb7b252af476c4c8fdad177c3cf5d65ccf912e

    SHA512

    72c3474f11a90bd904957030d019611c460dfa66524e0113b40b18a4ae0f3d81d56ae125fa2f247b266e71a11fcaad5884987036563e9464dc2e973877f79f3f

  • memory/2240-0-0x000007FEF5DD3000-0x000007FEF5DD4000-memory.dmp

    Filesize

    4KB

  • memory/2240-1-0x0000000000B50000-0x0000000000E74000-memory.dmp

    Filesize

    3.1MB

  • memory/2240-2-0x000007FEF5DD0000-0x000007FEF67BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2240-10-0x000007FEF5DD0000-0x000007FEF67BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2388-8-0x000007FEF5DD0000-0x000007FEF67BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2388-9-0x0000000000860000-0x0000000000B84000-memory.dmp

    Filesize

    3.1MB

  • memory/2388-11-0x000007FEF5DD0000-0x000007FEF67BC000-memory.dmp

    Filesize

    9.9MB

  • memory/2388-12-0x000007FEF5DD0000-0x000007FEF67BC000-memory.dmp

    Filesize

    9.9MB