Analysis

  • max time kernel
    78s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10-en
  • submitted
    20-09-2021 12:45

General

  • Target

    1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.bin.sample.exe

  • Size

    79KB

  • MD5

    f019a40b28dd58603fa3c5194dae6cba

  • SHA1

    08e09a6ef7650f5e7d4bf3fa8850ac4ca762da7d

  • SHA256

    1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849

  • SHA512

    22fba76bbeb356ba97412938ab882768f831273251e25b1078c8a31d720dd14c73e8977054bf24cf40952f143635b205917cc905f371499cbbc639388c3df487

Score
10/10

Malware Config

Extracted

Path

C:\fViGXl6GW.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://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/IRCWUUXN0Y4BIFFZW >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/IRCWUUXN0Y4BIFFZW

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

  • Modifies extensions of user files 12 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 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.bin.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\1c63a4fdee1528429886a0de5e89eaa540a058bf27cd378b8d139e045a2f7849.bin.sample.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:3940
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:3912

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3940-116-0x0000000002AA0000-0x0000000002AA1000-memory.dmp

    Filesize

    4KB

  • memory/3940-115-0x0000000002AA3000-0x0000000002AA5000-memory.dmp

    Filesize

    8KB