Analysis

  • max time kernel
    141s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    31-05-2024 14:35

General

  • Target

    1b98e58b5acf0de215b2bad7f734d453b0815cbe335d11bcb8d59124fd8c2016.exe

  • Size

    1.1MB

  • MD5

    79cc0d4a5a23d9775ba0971c6527f615

  • SHA1

    ce57b67d89440b8a942a445532daa8fb121220ef

  • SHA256

    1b98e58b5acf0de215b2bad7f734d453b0815cbe335d11bcb8d59124fd8c2016

  • SHA512

    99ed7e7ab55ad66e86cd47b7c9868c6af584ef5e00ce524f83bf7ac13aecf9af72eaa6bd8c43001d77b296aa4d28797f2cb0d50bc313ac40844503cc1e45e412

  • SSDEEP

    24576:zMs9TCjY3FV/3qdJDxOBu4nLesI+m6S9AIRl8Ma1KpHcJPJutmWTHgQ4gC:zMu/qX1OBu4nysI/P9Tlm17PktmWDg5v

Malware Config

Extracted

Path

C:\Program Files\Java\jdk1.7.0_80\db\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: BDCDC5DFEC1CE733612C1F76EBCD86EC
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.

  • Deletes shadow copies 3 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • 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 21 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • Interacts with shadow copies 2 TTPs 1 IoCs

    Shadow copies are often targeted by ransomware to inhibit system recovery.

  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 35 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

Processes

  • C:\Users\Admin\AppData\Local\Temp\1b98e58b5acf0de215b2bad7f734d453b0815cbe335d11bcb8d59124fd8c2016.exe
    "C:\Users\Admin\AppData\Local\Temp\1b98e58b5acf0de215b2bad7f734d453b0815cbe335d11bcb8d59124fd8c2016.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
    • Suspicious use of WriteProcessMemory
    PID:2088
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin delete shadows /all /quiet & wmic shadowcopy delete & bcdedit /set {default} bootstatuspolicy ignoreallfailures & bcdedit /set {default} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2252
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1376
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2644
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1504
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2584
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 2520
      2⤵
      • Program crash
      PID:2256
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:356

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\Java\jdk1.7.0_80\db\Restore-My-Files.txt

    Filesize

    512B

    MD5

    f766b55660f029dda531c4ededb839c1

    SHA1

    1fb404955b3ff4ef75b7d89e230819180c85615f

    SHA256

    8e0ae20367d8837766ba5b2dd559d7c454ef5c57a4f910234e079ed35cee6df6

    SHA512

    eef4d4e9aef7250eb434bdf582c3b9d45f00496972521d4984c7b48a7181ab66f7eafdbbe8bf4c841e1a3be62276e002cf23c7307bc73670f79b11225891f993

  • memory/2088-5-0x00000000001B0000-0x00000000001B1000-memory.dmp

    Filesize

    4KB

  • memory/2088-4-0x0000000000400000-0x0000000000516000-memory.dmp

    Filesize

    1.1MB

  • memory/2088-3-0x0000000000401000-0x00000000004E1000-memory.dmp

    Filesize

    896KB

  • memory/2088-0-0x0000000000400000-0x0000000000516000-memory.dmp

    Filesize

    1.1MB

  • memory/2088-6-0x0000000000400000-0x0000000000516000-memory.dmp

    Filesize

    1.1MB

  • memory/2088-1-0x0000000000400000-0x0000000000516000-memory.dmp

    Filesize

    1.1MB

  • memory/2088-2-0x0000000000400000-0x0000000000516000-memory.dmp

    Filesize

    1.1MB

  • memory/2088-7566-0x0000000000400000-0x0000000000516000-memory.dmp

    Filesize

    1.1MB

  • memory/2088-7682-0x0000000000400000-0x0000000000516000-memory.dmp

    Filesize

    1.1MB

  • memory/2088-7683-0x0000000000401000-0x00000000004E1000-memory.dmp

    Filesize

    896KB

  • memory/2088-7693-0x0000000000400000-0x0000000000516000-memory.dmp

    Filesize

    1.1MB

  • memory/2088-7692-0x0000000000400000-0x0000000000516000-memory.dmp

    Filesize

    1.1MB

  • memory/2088-7695-0x0000000000400000-0x0000000000516000-memory.dmp

    Filesize

    1.1MB