Resubmissions

25-06-2024 15:43

240625-s6cz6a1gnj 10

25-06-2024 15:17

240625-sn4p6axdma 10

Analysis

  • max time kernel
    142s
  • max time network
    128s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240611-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-06-2024 15:43

General

  • Target

    706F3EEC328E91FF7F66C8F0A2FB9B556325C153A329A2062DC85879C540839D.exe

  • Size

    79KB

  • MD5

    62a1b4d4b461f4eaae91c70727f71604

  • SHA1

    1ced9a7e62aa65faa03eb1ad2bc786e9d9b5f6c2

  • SHA256

    706f3eec328e91ff7f66c8f0a2fb9b556325c153a329a2062dc85879c540839d

  • SHA512

    d14f989f5f54663c3ea63526a000e8db5d172046e37f412ed47cd31eb14db071b515b854bbb3ab3d2f41f936b6962583aaa0b3ef1236aa2506148813f66ad542

  • SSDEEP

    1536:DnICS4ArFnRoHhcVyid9EZZoi+zQ95f8IwdON:QZnmqVyq9EN+M95bwE

Score
10/10

Malware Config

Extracted

Path

C:\TU8TSUkTT.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 data stolen? From your network was stolen 1000 GB of data. If you do not contact us we will publish all your data in our blog and will send it to the biggest mass media. Blog post link: http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/72oJjilhMD/6d067a8741848166fa2ac1e69472280c >>> 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/X3452I2VDTHM30QX >> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://blackmax7su6mbwtcyo3xwtpfxpm356jjqrs34y4crcytpw7mifuedyd.onion/72oJjilhMD/6d067a8741848166fa2ac1e69472280c

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/X3452I2VDTHM30QX

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

  • Renames multiple (155) files with added filename extension

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

  • 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
  • Uses Volume Shadow Copy service COM API

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

Processes

  • C:\Users\Admin\AppData\Local\Temp\706F3EEC328E91FF7F66C8F0A2FB9B556325C153A329A2062DC85879C540839D.exe
    "C:\Users\Admin\AppData\Local\Temp\706F3EEC328E91FF7F66C8F0A2FB9B556325C153A329A2062DC85879C540839D.exe"
    1⤵
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3968
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:1612
  • 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 --field-trial-handle=1416,i,17949988676391029604,13756926835471203788,262144 --variations-seed-version --mojo-platform-channel-handle=4212 /prefetch:8
    1⤵
      PID:3964

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\TU8TSUkTT.README.txt

      Filesize

      1KB

      MD5

      1ba53a2b703aeb54647185c18cc1ddbd

      SHA1

      0bf081ef67e7c9fb4e55c53f56aa332a17740a7a

      SHA256

      74e29716d6211d4c26ab0c3184affef6f275bfbfab2ec4dd4fb776fb76065173

      SHA512

      15f7a5870ad2decf6b09c56a6b5e3f5803e5071749fd4638470c19e02ef1fd0c4438e8f7e62a9f7b8792cd1893e748def44a0a8026f10c4a0268feecae9cf617

    • memory/3968-1-0x0000000000C70000-0x0000000000C80000-memory.dmp

      Filesize

      64KB

    • memory/3968-0-0x0000000000C70000-0x0000000000C80000-memory.dmp

      Filesize

      64KB

    • memory/3968-259-0x0000000000C70000-0x0000000000C80000-memory.dmp

      Filesize

      64KB

    • memory/3968-258-0x0000000000C70000-0x0000000000C80000-memory.dmp

      Filesize

      64KB