Overview

overview

10

Static

static

8

EIS.exe

windows7_x64

10

EIS.exe

windows10_x64

10

Analysis

  • max time kernel
    361s
  • max time network
    1444s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    01-09-2021 09:08

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General

  • Target

    EIS.exe

  • Size

    4.8MB

  • MD5

    3df675b0800e6fc57c81271c440327c4

  • SHA1

    361aaa051121753358ea49bfd05716cdd38fe492

  • SHA256

    c3cc8efd60b85139c9b9f4c62c56ffbafde26c1b22cd7b339a371afde7fc513b

  • SHA512

    321f4b2e5dda2b39268ea057df02f49e96a6ab8461fa9e0ed970202b9a934e816f4885c33534dad35f0301fb1046303a9d2b2207293947997db54e307cc4f06b

Score
10/10
blackmatterb8726db5d916731db5625cfc30c4f7d9ransomwarevmprotect

Malware Config

Extracted

Path

C:\oSPvdHTvI.README.txt

Family

blackmatter

Ransom Note
~+ * + ' BLACK | () .-.,='``'=. - o - '=/_ \ | * | '=._ | \ `=./`, ' . '=.__.=' `=' * + Matter + O * ' . >>> Hello Eisvogel Hubert Bernegger GmbH >>> 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 of data. If you do not contact us we will publish all your data will send it to the biggest mass media and your customers. >>> 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://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/5PBOYRSETHVDBDPTL >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/5PBOYRSETHVDBDPTL

Extracted

Family

blackmatter

Version

2.0

Botnet

b8726db5d916731db5625cfc30c4f7d9

Attributes
  • attempt_auth

    false

  • create_mutex

    false

  • encrypt_network_shares

    true

  • exfiltrate

    false

  • mount_volumes

    true

rsa_pubkey.base64
aes.base64

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

    ransomwareblackmatter
  • Modifies extensions of user files 22 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • VMProtect packed file 1 IoCs

    Detects executables packed with VMProtect commercial packer.

    vmprotect
  • Enumerates connected drives 3 TTPs 1 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Modifies Control Panel 2 IoCs
    evasion
  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\EIS.exe
    "C:\Users\Admin\AppData\Local\Temp\EIS.exe"
    1⤵
    • Modifies extensions of user files
    • Enumerates connected drives
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3988
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:2492

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/3988-115-0x0000000000400000-0x0000000000BA4000-memory.dmp

    Filesize

    7.6MB

    Download

  • memory/3988-117-0x0000000002A53000-0x0000000002A55000-memory.dmp

    Filesize

    8KB

    Download

  • memory/3988-118-0x0000000002A50000-0x0000000002A51000-memory.dmp

    Filesize

    4KB

    Download

  • memory/3988-116-0x00000000001D0000-0x00000000001D1000-memory.dmp

    Filesize

    4KB

    Download