Analysis

  • max time kernel
    126s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    28-12-2022 15:05

General

  • Target

    1125542c8a973c1f614465f0a7c7c8ebeb2dc151c5d4876bfff7cdca7fd2b15e.exe

  • Size

    34KB

  • MD5

    51b4be24023ebefe831c4ce0b19b31c9

  • SHA1

    b219ad9d3cf559b07ef7fd1ffa6e1dd0fc3f9deb

  • SHA256

    1125542c8a973c1f614465f0a7c7c8ebeb2dc151c5d4876bfff7cdca7fd2b15e

  • SHA512

    2e6accb1d4316857aef2f6346a668e472286065bc6325aeb8d6ce6ce591d85456ac336e74d6e38fe7e6089767d4d78a9effeea5735f8d643cb0db0614183291a

  • SSDEEP

    768:0TgeEbf2rriFVI1kggGVtSMC2F7QGIFFBMterI6ywBuO1Yp:LE+VYVYMC2F7AoterI6yR2O

Malware Config

Extracted

Path

C:\bTx10NB1P.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

Extracted

Family

blackmatter

Version

1.2

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

  • Modifies extensions of user files 5 IoCs

    Ransomware generally changes the extension on encrypted files.

  • UPX packed file 2 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\1125542c8a973c1f614465f0a7c7c8ebeb2dc151c5d4876bfff7cdca7fd2b15e.exe
    "C:\Users\Admin\AppData\Local\Temp\1125542c8a973c1f614465f0a7c7c8ebeb2dc151c5d4876bfff7cdca7fd2b15e.exe"
    1⤵
    • Modifies extensions of user files
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Modifies system certificate store
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1916
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1128

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/1916-54-0x0000000075211000-0x0000000075213000-memory.dmp

    Filesize

    8KB

  • memory/1916-55-0x0000000000C50000-0x0000000000C67000-memory.dmp

    Filesize

    92KB

  • memory/1916-56-0x0000000000905000-0x0000000000916000-memory.dmp

    Filesize

    68KB

  • memory/1916-57-0x0000000000C50000-0x0000000000C67000-memory.dmp

    Filesize

    92KB