Resubmissions

08-07-2022 13:22

220708-ql7ypacgfn 10

29-11-2021 17:04

211129-vlj9vafeb7 10

05-10-2021 12:34

211005-prwl6shgb4 10

Analysis

  • max time kernel
    115s
  • max time network
    127s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    05-10-2021 12:34

General

  • Target

    668a4a2300f36c9df0f7307cc614be3297f036fa312a424765cdb2c169187fe6.exe

  • Size

    34KB

  • MD5

    6f5c77478795ff7fb9700ed50b334429

  • SHA1

    6803d62254edf3bdd3bc523422ff98e6120b6e5b

  • SHA256

    668a4a2300f36c9df0f7307cc614be3297f036fa312a424765cdb2c169187fe6

  • SHA512

    40e4ffd227443003e0506f8d1fbfbacde54f9bfb5fa6908f05e134ee25217d3c3907d7c981107d642c071063b57253b4727fb6a211d7698a7a9bae2d8beede5f

Score
10/10

Malware Config

Extracted

Path

C:\AVx2lZV2X.README.txt

Family

blackmatter

Ransom Note
~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> What happens? Your network is encrypted, and currently not operational. We need only money, after payment we will give you a decryptor for the entire network and you will restore all the data. >>> What guarantees? We are not a politically motivated group and we do not need anything other than your money. If you pay, we will provide you the programs for decryption and we will delete your data. If we do not give you decrypters or we do not delete your data, no one will pay us in the future, this does not comply with our goals. We always keep our promises. >>> How to contact with us? 1. Download and install TOR Browser (https://www.torproject.org/). 2. Open http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/GDBJS76DH3D4IKQD2QO7R. >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/GDBJS76DH3D4IKQD2QO7R

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

  • Modifies extensions of user files 15 IoCs

    Ransomware generally changes the extension on encrypted files.

  • Enumerates connected drives 3 TTPs 1 IoCs

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

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Modifies Control Panel 3 IoCs
  • Modifies system certificate store 2 TTPs 5 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\668a4a2300f36c9df0f7307cc614be3297f036fa312a424765cdb2c169187fe6.exe
    "C:\Users\Admin\AppData\Local\Temp\668a4a2300f36c9df0f7307cc614be3297f036fa312a424765cdb2c169187fe6.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1776
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3048

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1776-116-0x0000000002520000-0x0000000002521000-memory.dmp

    Filesize

    4KB

  • memory/1776-115-0x0000000002523000-0x0000000002525000-memory.dmp

    Filesize

    8KB