Resubmissions

22-09-2021 23:03

210922-21p7zaeac8 10

22-09-2021 23:00

210922-2y312seab9 10

Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows10_x64
  • resource
    win10-en-20210920
  • submitted
    22-09-2021 23:03

General

  • Target

    2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe

  • Size

    66KB

  • MD5

    a55bc3368a10ca5a92c1c9ecae97ced9

  • SHA1

    72ed32b0e8692c7caa25d61e1828cdb48c4fe361

  • SHA256

    2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009

  • SHA512

    da3187046c267b8053f0274de81665234dd07c1d06c61108878abccccb2f10bfe4bf7c53e0e4100ed76772b8b92bdd6c4953f19250f33be7dd9380ab3b63db3c

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 8 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
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe
    "C:\Users\Admin\AppData\Local\Temp\2c323453e959257c7aa86dc180bb3aaaa5c5ec06fa4e72b632d9e4b817052009.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3732
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:4296

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/3732-115-0x0000000002753000-0x0000000002755000-memory.dmp

    Filesize

    8KB

  • memory/3732-116-0x0000000002750000-0x0000000002751000-memory.dmp

    Filesize

    4KB