Resubmissions

15-02-2024 07:50

240215-jpn7escg92 10

15-02-2024 06:53

240215-hnmrjabc51 10

Analysis

  • max time kernel
    296s
  • max time network
    300s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15-02-2024 06:53

General

  • Target

    f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae.exe

  • Size

    862KB

  • MD5

    af9ff037caca1f316e7d05db86dbd882

  • SHA1

    844e9b219aaecb26de4994a259f822500fb75ae1

  • SHA256

    f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae

  • SHA512

    e3cc5ca9fa5c4f23dd97389f86af276798ae4db4a68d38812fce25549e7f18e41d2bfc9fa72d3110a54ac88038cb27d3210bd099c6c3975befe5b36a569cd494

  • SSDEEP

    24576:DxAf2NuubB6RWspgjuwu7pl4Ha+UmxJH+Q1F:dAfSrWW4g+7Ht+UmxJeW

Malware Config

Extracted

Path

C:\Program Files\dotnet\Restore-My-Files.txt

Ransom Note
LockBit 2.0 Ransomware Your data are stolen and encrypted The data will be published on TOR website http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion and https://bigblog.at if you do not pay the ransom You can contact us and decrypt one file for free on these TOR sites http://lockbitsup4yezcd5enk5unncx3zcy7kw6wllyqmiyhvanjj352jayid.onion http://lockbitsap2oaqhcun3syvbqt6n5nzt7fqosc6jdlmsfleu3ka4k2did.onion OR https://decoding.at Decryption ID: F4B0B5EF9DC08D877CD6AA2345D1145C
URLs

http://lockbitapt6vx57t3eeqjofwgcglmutr3a35nygvokja5uuccip4ykyd.onion

https://bigblog.at

http://lockbitsup4yezcd5enk5unncx3zcy7kw6wllyqmiyhvanjj352jayid.onion

http://lockbitsap2oaqhcun3syvbqt6n5nzt7fqosc6jdlmsfleu3ka4k2did.onion

https://decoding.at

Signatures

  • Lockbit

    Ransomware family with multiple variants released since late 2019.

  • Creates a large amount of network flows 1 TTPs

    This may indicate a network scan to discover remotely running services.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 18 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 15 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae.exe
    "C:\Users\Admin\AppData\Local\Temp\f3e891a2a39dd948cd85e1c8335a83e640d0987dbd48c16001a02f6b7c1733ae.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Drops file in System32 directory
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Modifies registry class
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1500

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\dotnet\Restore-My-Files.txt

    Filesize

    512B

    MD5

    b37755c8e288ebf7dfccc2c26c0b8a11

    SHA1

    d7683947c69cb529a21b9459ed3d38dfe02edbd0

    SHA256

    6311ee66cf42076949ba18a483abb8f9e3bc2f4cbc54e39b9c28467a693dd411

    SHA512

    5df33900d7361bd78d3d58dd3f568ff9f87e634fe6e4ef5afbecc0a5708be4ded0f3252c621003db8f57c09cbb6ea095cad956ab90963f3d14f3be2196ac0701