Analysis

  • max time kernel
    88s
  • max time network
    114s
  • platform
    windows7_x64
  • resource
    win7-20230220-en
  • resource tags

    arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
  • submitted
    12/03/2023, 05:34

General

  • Target

    111093146452b46071976d594172bc81d66427651f5f4cc244ddad9b3eae5c7d.bin.sample.exe

  • Size

    554KB

  • MD5

    523190c8adb9f67f54bd299c9175d4e8

  • SHA1

    1a736dfd8806f898e529b0f713b4e7bc44f75742

  • SHA256

    111093146452b46071976d594172bc81d66427651f5f4cc244ddad9b3eae5c7d

  • SHA512

    5d687fc67221694e4227b5f7b11ab0caa6be64d647893ce25901a0282cc1040792691a7a8390b63581b33e52d2d466c97b9b0ceae1114e54a5a253d07a1c6fc6

  • SSDEEP

    12288:9SUCXw8ZeNj+qIpyt9xPRQ+KQmIStn3iHfVt+K:9SUDNOyxPq+PSt3i0K

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: 8E5BB08F19AA7B0A3F001EF5FB2B2DC7
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 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Modifies extensions of user files 5 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 20 IoCs
  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 16 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\111093146452b46071976d594172bc81d66427651f5f4cc244ddad9b3eae5c7d.bin.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\111093146452b46071976d594172bc81d66427651f5f4cc244ddad9b3eae5c7d.bin.sample.exe"
    1⤵
    • Modifies extensions of user files
    • Adds Run key to start application
    • 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:2032
    • 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:1756
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2056
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:2880
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2636
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:3960
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2084

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

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

          Filesize

          512B

          MD5

          f88a6e9f47e25160ebe1174ed360a8f1

          SHA1

          e5395df9fcab6d5bb6fa7b6b0e0c130c0b863a08

          SHA256

          d6162a0afecd225bd289cd7c10963c93eb28ae27a18888d61d01b16d9eee0b33

          SHA512

          6853912312dfeb53853111b55ac2d77e9cce1f534689b1acbd11235106601c914b1431df12a7c65ec0726b45cc96df62bf39cc23f770d05569adfdebb10b0a75

        • memory/2032-7713-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-2763-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-4690-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-4889-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-5737-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-95-0x0000000000220000-0x0000000000311000-memory.dmp

          Filesize

          964KB

        • memory/2032-7714-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-7718-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-7720-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-7721-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-7722-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-7723-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB

        • memory/2032-7724-0x0000000000400000-0x0000000002BF3000-memory.dmp

          Filesize

          39.9MB