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Overview

overview

10

Static

static

10

Ransomware...KB.exe

windows7-x64

10

Ransomware...KB.exe

windows7-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows10-ltsc_2021-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows7-x64

10

Ransomware...KB.exe

windows7-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows10-ltsc_2021-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows7-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows10-ltsc_2021-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows7-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows10-ltsc_2021-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-ltsc_2021-x64

10

Ransomware...KB.exe

windows7-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows10-ltsc_2021-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows7-x64

10

Ransomware...KB.exe

windows10-2004-x64

10

Ransomware...KB.exe

windows10-ltsc_2021-x64

10

Ransomware...KB.exe

windows11-21h2-x64

10

Resubmissions

25/03/2025, 15:11

250325-skmbpsxzaw 10

25/03/2025, 15:06

250325-sg1d6a1px2 10

25/03/2025, 15:01

250325-sd5jpsxyct 10

25/03/2025, 14:56

250325-sbdcfaxxgs 10

25/03/2025, 14:50

250325-r7ve6a1nv3 10

25/03/2025, 14:46

250325-r5ab7sxwhx 10

25/03/2025, 14:40

250325-r2c9paxwe1 10

05/02/2025, 10:25

250205-mgcefaslhw 10

05/02/2025, 10:17

250205-mbs51atmbk 10

05/02/2025, 09:15

250205-k785zs1pfn 10

Analysis

  • max time kernel
    117s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20241023-en
  • resource tags

    arch:x64arch:x86image:win7-20241023-enlocale:en-usos:windows7-x64system
  • submitted
    25/03/2025, 14:46

Sharing

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Report Analysis Logs

General

  • Target

    RansomwareSamples/BlackMatter_02_08_2021_67KB.exe

  • Size

    67KB

  • MD5

    598c53bfef81e489375f09792e487f1a

  • SHA1

    80a29bd2c349a8588edf42653ed739054f9a10f5

  • SHA256

    22d7d67c3af10b1a37f277ebabe2d1eb4fd25afbd6437d4377400e148bcc08d6

  • SHA512

    6a82ad5009588d2fa343bef8d9d2a02e2e76eec14979487a929a96a6b6965e82265a69ef8dd29a01927e9713468de3aedd7b5ee5e79839a1a50649855a160c35

  • SSDEEP

    1536:RzICS4AT6GxdEe+TOdincJXvKv8Zg3kl:qR7auJXSkZg3C

Score
10/10
blackmatterdiscoveryransomware

Malware Config

Extracted

Path

C:\yHh8Ghp8e.README.txt

Family

blackmatter

Ransom Note
~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> What happens? Your network is encrypted, and currently not operational. We have downloaded 1TB from your fileserver. 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. >> Data leak includes 1. Full emloyeers personal data 2. Network information 3. Schemes of buildings, active project information, architect details and contracts, 4. Finance info >>> How to contact with us? 1. Download and install TOR Browser (https://www.torproject.org/). 2. Open http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/7NT6LXKC1XQHW5039BLOV. >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/7NT6LXKC1XQHW5039BLOV

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

    ransomwareblackmatter
  • Blackmatter family
    blackmatter
  • Renames multiple (166) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 1 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies Control Panel 3 IoCs
    defense_evasion
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Uses Volume Shadow Copy service COM API

    The Volume Shadow Copy service is used to manage backups/snapshots.

    ransomware

Processes

  • C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\BlackMatter_02_08_2021_67KB.exe
    C:\Users\Admin\AppData\Local\Temp\RansomwareSamples\BlackMatter_02_08_2021_67KB.exe bcdedit /set shutdown /r /f /t 2
    1⤵
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • System Location Discovery: System Language Discovery
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:2592
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2548

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\94308059B57B3142E455B38A6EB92015
    Filesize

    71KB

    MD5

    83142242e97b8953c386f988aa694e4a

    SHA1

    833ed12fc15b356136dcdd27c61a50f59c5c7d50

    SHA256

    d72761e1a334a754ce8250e3af7ea4bf25301040929fd88cf9e50b4a9197d755

    SHA512

    bb6da177bd16d163f377d9b4c63f6d535804137887684c113cc2f643ceab4f34338c06b5a29213c23d375e95d22ef417eac928822dfb3688ce9e2de9d5242d10

    Download Submit

  • C:\Users\Admin\AppData\Local\Temp\TarA74E.tmp
    Filesize

    183KB

    MD5

    109cab5505f5e065b63d01361467a83b

    SHA1

    4ed78955b9272a9ed689b51bf2bf4a86a25e53fc

    SHA256

    ea6b7f51e85835c09259d9475a7d246c3e764ad67c449673f9dc97172c351673

    SHA512

    753a6da5d6889dd52f40208e37f2b8c185805ef81148682b269fff5aa84a46d710fe0ebfe05bce625da2e801e1c26745998a41266fa36bf47bc088a224d730cc

    Download Submit

  • C:\yHh8Ghp8e.README.txt
    Filesize

    1KB

    MD5

    f66968c47a64569e2281f65a95991be0

    SHA1

    ef9e3e80bfbea4c3021b226cb8cd00687013b8a8

    SHA256

    4b950c763006e7c4569df8742855cec31bf82f835bd7e2bdcb5f128db34c82bf

    SHA512

    cb4ace1b3e891ab100b3950c6bc133b216e91c8978a3af1ffd75617b606bb7ceb0133f44d37a30a827655e5b84b016d736a732f5f37635bb727e1a5b722cad24

    Download Submit

  • memory/2592-0-0x00000000007A0000-0x00000000007E0000-memory.dmp

    Filesize

    256KB

    Download