Resubmissions

10-03-2021 22:41

210310-c4hgxpl6m6 10

10-03-2021 22:03

210310-atmrjjrp5x 10

22-02-2021 18:34

210222-mfkm1zpavj 10

Analysis

  • max time kernel
    17s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7v20201028
  • submitted
    22-02-2021 18:34

General

  • Target

    391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe

  • Size

    75KB

  • MD5

    98b04a1cfdf18674315ec137733553a7

  • SHA1

    dd1cdb8782b5e08695b006393d1e8ab4e447556e

  • SHA256

    391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e

  • SHA512

    3c5d9884a922b4b974c3dbd0e6f73292b7bfa761a1e50cfb1af07752261cf1a8ea2520a13f28f7040d788bff3837c62c7a6595f03b1c1be5f8d4ea9848f09cb5

Score
10/10

Malware Config

Extracted

Path

C:\How To Restore Your Files.txt

Ransom Note
############## [ babyk ransomware ] ############## * What happend? ---------------------------------------------- Your computers and servers are encrypted, backups are deleted from your network and copied. We use strong encryption algorithms, so you cannot decrypt your data without us. But you can restore everything by purchasing a special program from us - a universal decoder. This program will restore your entire network. Follow our instructions below and you will recover all your data. If you continue to ignore this for a long time, we will start reporting the hack to mainstream media and posting your data to the dark web. * What guarantees? ---------------------------------------------- We value our reputation. If we do not do our work and liabilities, nobody will pay us. This is not in our interests. All our decryption software is perfectly tested and will decrypt your data. We will also provide support in case of problems. We guarantee to decrypt one file for free. Go to the site and contact us. * What information compromised? ---------------------------------------------- We copied many data from your internal network, here are some proofs (private link): http://gtmx56k4hutn3ikv.onion/blog/ff6b763849c49971c7ef8508064a3d8681529c7f45e532ff9e3d9ec13165263b/ For additional confirmations, please chat with us/ In cases of ignoring us, the information will be released to the public in blog http://gtmx56k4hutn3ikv.onion/ * How to contact us? ---------------------------------------------- 1) Download for browser: https://www.torproject.org/download/ 2) Open it 3) Follow this link in tor browser: http://babukq4e2p4wu4iq.onion/login.php?id=l6Kr29xLbfnq1f0jzES55LLmmrZPd8
URLs

http://gtmx56k4hutn3ikv.onion/blog/ff6b763849c49971c7ef8508064a3d8681529c7f45e532ff9e3d9ec13165263b/

http://gtmx56k4hutn3ikv.onion/

http://babukq4e2p4wu4iq.onion/login.php?id=l6Kr29xLbfnq1f0jzES55LLmmrZPd8

Signatures

  • Deletes shadow copies 2 TTPs

    Ransomware often targets backup files to inhibit system recovery.

  • Enumerates connected drives 3 TTPs 24 IoCs

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

  • Enumerates physical storage devices 1 TTPs

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

  • Interacts with shadow copies 2 TTPs 2 IoCs

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

  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe
    "C:\Users\Admin\AppData\Local\Temp\391cfcd153881743556f76de7bbca5b19857f8b69a6f6f6dfde6fd9b06c17f5e.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1932
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1444
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1776
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c vssadmin.exe delete shadows /all /quiet
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1108
      • C:\Windows\system32\vssadmin.exe
        vssadmin.exe delete shadows /all /quiet
        3⤵
        • Interacts with shadow copies
        PID:1096
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1704

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

File Deletion

2
T1107

Discovery

Query Registry

1
T1012

Peripheral Device Discovery

1
T1120

System Information Discovery

2
T1082

Impact

Inhibit System Recovery

2
T1490

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1096-9-0x0000000000000000-mapping.dmp
  • memory/1108-7-0x0000000000000000-mapping.dmp
  • memory/1444-5-0x0000000000000000-mapping.dmp
  • memory/1776-6-0x0000000000000000-mapping.dmp
  • memory/1932-2-0x00000000750C1000-0x00000000750C3000-memory.dmp
    Filesize

    8KB

  • memory/1932-3-0x0000000002230000-0x0000000002241000-memory.dmp
    Filesize

    68KB

  • memory/1932-4-0x0000000002640000-0x0000000002651000-memory.dmp
    Filesize

    68KB