Overview

overview

10

Static

static

10

2024-03-21...de.exe

windows7-x64

10

2024-03-21...de.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    142s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-03-2024 20:43

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General

  • Target

    2024-03-21_cdbb4fff55080101d27e5072025557bd_blackmatter_darkside.exe

  • Size

    67KB

  • MD5

    cdbb4fff55080101d27e5072025557bd

  • SHA1

    bfe246551ac1b8fa50d75ab16f30df1f4ae57efc

  • SHA256

    ecdb0aac31e29d0fd369342965a1bc5880ac951ade510ef947c592edb5828f53

  • SHA512

    38c5f3ccdfdda988722ada0ada508153b0db0b62fcb7cb7782ed76005546be765f53d5ae1e98cfc411752571585c467f369c1068929c098cb371dd085ac82f0c

  • SSDEEP

    1536:RzICS4AT6GxdEe+TOdincJXvKvSZg3kl:qR7auJXSqZg3C

Score
10/10
blackmatterransomware

Malware Config

Extracted

Path

C:\MaiYWlrYr.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
  • Renames multiple (114) 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 5 IoCs
  • Modifies Control Panel 3 IoCs
    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\2024-03-21_cdbb4fff55080101d27e5072025557bd_blackmatter_darkside.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-03-21_cdbb4fff55080101d27e5072025557bd_blackmatter_darkside.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:1780
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:556
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1348 --field-trial-handle=2284,i,15722001240173834669,15048020084704567542,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:300

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\MaiYWlrYr.README.txt
      Filesize

      1KB

      MD5

      f66968c47a64569e2281f65a95991be0

      SHA1

      ef9e3e80bfbea4c3021b226cb8cd00687013b8a8

      SHA256

      4b950c763006e7c4569df8742855cec31bf82f835bd7e2bdcb5f128db34c82bf

      SHA512

      cb4ace1b3e891ab100b3950c6bc133b216e91c8978a3af1ffd75617b606bb7ceb0133f44d37a30a827655e5b84b016d736a732f5f37635bb727e1a5b722cad24

      Download Submit

    • memory/1780-0-0x0000000002620000-0x0000000002630000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1780-1-0x0000000002620000-0x0000000002630000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1780-184-0x0000000002620000-0x0000000002630000-memory.dmp

      Filesize

      64KB

      Download

    • memory/1780-185-0x0000000002620000-0x0000000002630000-memory.dmp

      Filesize

      64KB

      Download