Analysis

  • max time kernel
    152s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    14-03-2024 04:08

General

  • Target

    2a32c844885b05e65769a051dae825aecef887c2c60035e5a20ae42533cc1695.exe

  • Size

    959KB

  • MD5

    2525d5867b27f5ee3949880186c35ed7

  • SHA1

    8fc6dd893d10eb3f4d7c06fda1d3e05a8c7ba8ad

  • SHA256

    2a32c844885b05e65769a051dae825aecef887c2c60035e5a20ae42533cc1695

  • SHA512

    589b76ae5cddff763af93164eb817cf971a3a137a7d3a6ad6ac8c3dfcb703c49c13afb69c00d1984edbfeecc63cdefa4a6b78e1c70f6b65fb057e0e82c526376

  • SSDEEP

    24576:uLjr3s2nScu1i1tz3f++5kRzFxk7rMxNeR1R9qpdRF:Ujrc2So1Ff+B3k796r

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: E7A475C8A564BE3A4EFE5B53ABD32424
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
  • 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.

  • 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).

  • Interacts with shadow copies 2 TTPs 1 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 64 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\2a32c844885b05e65769a051dae825aecef887c2c60035e5a20ae42533cc1695.exe
    "C:\Users\Admin\AppData\Local\Temp\2a32c844885b05e65769a051dae825aecef887c2c60035e5a20ae42533cc1695.exe"
    1⤵
    • Adds Run key to start application
    • Enumerates connected drives
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1912
    • 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:2644
      • C:\Windows\system32\vssadmin.exe
        vssadmin delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:2640
      • C:\Windows\System32\Wbem\WMIC.exe
        wmic shadowcopy delete
        3⤵
        • Suspicious use of AdjustPrivilegeToken
        PID:368
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2560
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:772
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3060

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

    f1cf976bc2e34f3a14088999a4e5188e

    SHA1

    b161683578a161cbf94976bac286e17ebed32d78

    SHA256

    a6bb0101cda4f6ab624e6da6164a98f2bba76d5a7790629da9e3bb6b22c1e87a

    SHA512

    44da6fc58117605c039f5070b5f12d5e171723f63c49983857380b647d81393245265515187cbe6487e136f77222740652f804faeb10a1d21adf5c9c87a8989f