Analysis

  • max time kernel
    122s
  • max time network
    163s
  • platform
    windows7_x64
  • resource
    win7-en-20211104
  • submitted
    22-11-2021 13:14

General

  • Target

    3a03530c732ebe53cdd7c17bee0988896d36c2b632dbd6118613697c2af82117.exe

  • Size

    31KB

  • MD5

    b07ff2183904731e4905b1bc1e23d24e

  • SHA1

    3fe14bbf67d25bfa3b9d06f5f1fc7812aa28a687

  • SHA256

    3a03530c732ebe53cdd7c17bee0988896d36c2b632dbd6118613697c2af82117

  • SHA512

    e7774b76759952979bac48a5f1a24808d957181d5720393f16cfb6af054253a47fd63c9f068203eb2433ff768979c59043f9f4a52cf734f375583ddaba478c4d

Malware Config

Extracted

Path

C:\gawreXkrr.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.

  • suricata: ET MALWARE BlackMatter CnC Activity

    suricata: ET MALWARE BlackMatter CnC Activity

  • suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)

    suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (mojobiden .com)

  • suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (paymenthacks .com)

    suricata: ET MALWARE BlackMatter CnC Domain in DNS Lookup (paymenthacks .com)

  • Modifies extensions of user files 8 IoCs

    Ransomware generally changes the extension on encrypted files.

  • 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\3a03530c732ebe53cdd7c17bee0988896d36c2b632dbd6118613697c2af82117.exe
    "C:\Users\Admin\AppData\Local\Temp\3a03530c732ebe53cdd7c17bee0988896d36c2b632dbd6118613697c2af82117.exe"
    1⤵
    • Modifies extensions of user files
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:472
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1080

Network

MITRE ATT&CK Matrix ATT&CK v6

Defense Evasion

Modify Registry

1
T1112

Impact

Defacement

1
T1491

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/472-55-0x00000000751C1000-0x00000000751C3000-memory.dmp
    Filesize

    8KB

  • memory/472-56-0x0000000000355000-0x0000000000366000-memory.dmp
    Filesize

    68KB

  • memory/472-57-0x0000000000350000-0x0000000000351000-memory.dmp
    Filesize

    4KB

  • memory/472-58-0x0000000000366000-0x0000000000367000-memory.dmp
    Filesize

    4KB