Overview

overview

10

Static

static

51302b8c1d...in.exe

windows7_x64

10

51302b8c1d...in.exe

windows10-2004_x64

10

Analysis

  • max time kernel
    92s
  • max time network
    56s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    06-05-2022 12:17

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General

  • Target

    51302b8c1d63640e9001d2ea9f0b5589d502750ed3b620dd9f68a4d40807cf92.bin.exe

  • Size

    959KB

  • MD5

    766b41b04125024cb0c6e4d6b84db9cc

  • SHA1

    ad47f0186e7f99c6c5c67b07cd89af63223289d7

  • SHA256

    51302b8c1d63640e9001d2ea9f0b5589d502750ed3b620dd9f68a4d40807cf92

  • SHA512

    e149f7dbc46329a8cad9056e1c4253b3099334a80722183aff40111a62527ab8700515d1748cf6355a7a424f7bf75f82504e4cd76618cad77f0d32ce56d59dab

Score
10/10
lockbitdiscoveryevasionpersistenceransomware

Malware Config

Extracted

Path

C:\program files\7-zip\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: 0894816CA8BC525C065534BCFCAF9678
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.

    ransomwarelockbit
  • Creates a large amount of network flows 1 TTPs

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

    discovery
  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

    ransomware
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Modifies extensions of user files 7 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Adds Run key to start application 2 TTPs 2 IoCs
    persistence
  • Drops file in System32 directory 2 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.

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

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

    ransomware
  • Modifies registry class 3 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 45 IoCs
  • Suspicious use of WriteProcessMemory 20 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\51302b8c1d63640e9001d2ea9f0b5589d502750ed3b620dd9f68a4d40807cf92.bin.exe
    "C:\Users\Admin\AppData\Local\Temp\51302b8c1d63640e9001d2ea9f0b5589d502750ed3b620dd9f68a4d40807cf92.bin.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:948
    • 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:2540
      • 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:1964
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2372
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {default} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2436
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 948 -s 12536
      2⤵
      • Program crash
      PID:2504
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2676

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

1
T1060

Privilege Escalation

Defense Evasion

File Deletion

2
T1107

Modify Registry

1
T1112

Credential Access

Discovery

Network Service Scanning

1
T1046

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Inhibit System Recovery

3
T1490

Replay Monitor

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Downloads

  • memory/948-54-0x0000000075DF1000-0x0000000075DF3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1964-57-0x0000000000000000-mapping.dmp
    Download
  • memory/2372-58-0x0000000000000000-mapping.dmp
    Download
  • memory/2436-59-0x0000000000000000-mapping.dmp
    Download
  • memory/2504-60-0x0000000000000000-mapping.dmp
    Download
  • memory/2540-55-0x0000000000000000-mapping.dmp
    Download
  • memory/2640-56-0x0000000000000000-mapping.dmp
    Download