Overview

overview

10

Static

static

10

66e6563ece...le.exe

windows7_x64

10

66e6563ece...le.exe

windows10_x64

10

Analysis

  • max time kernel
    149s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-en-20210920
  • submitted
    21-09-2021 13:19

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General

  • Target

    66e6563ecef8f33b1b283a63404a2029550af9a6574b84e0fb3f2c6a8f42e89f.bin.sample.exe

  • Size

    78KB

  • MD5

    feed59d9048fdc17962b71f7550388dd

  • SHA1

    b24887db18de6b017687c2aca95cf1ccfa0d8ea3

  • SHA256

    66e6563ecef8f33b1b283a63404a2029550af9a6574b84e0fb3f2c6a8f42e89f

  • SHA512

    4fcd03ec2e73e0ce75774c21db66184bc3eab9128cac1cae9d1487a6bb8461a5641a7c3be590291f561833c22377e2f74c09084b37fda1f4d524b2607b252284

Score
10/10
blackmatterransomware

Malware Config

Extracted

Path

C:\chkvc3MvG.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://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/9BEBTCZQN6BQJ94DJXJ >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24maprinktc7uizgfyqhisx7lkszb6ogh6lwdzpac23w3mh4tvyd.onion/9BEBTCZQN6BQJ94DJXJ

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

    ransomwareblackmatter
  • Modifies extensions of user files 27 IoCs

    Ransomware generally changes the extension on encrypted files.

    ransomware
  • Sets desktop wallpaper using registry 2 TTPs 2 IoCs
    ransomware
  • Suspicious use of NtSetInformationThreadHideFromDebugger 6 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Modifies Control Panel 3 IoCs
    evasion
  • Modifies registry class 20 IoCs
  • Opens file in notepad (likely ransom note) 1 IoCs
    ransomware
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 17 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\66e6563ecef8f33b1b283a63404a2029550af9a6574b84e0fb3f2c6a8f42e89f.bin.sample.exe
    "C:\Users\Admin\AppData\Local\Temp\66e6563ecef8f33b1b283a63404a2029550af9a6574b84e0fb3f2c6a8f42e89f.bin.sample.exe"
    1⤵
    • Modifies extensions of user files
    • Sets desktop wallpaper using registry
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Modifies Control Panel
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1192
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" /p C:\chkvc3MvG.README.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      • Suspicious use of WriteProcessMemory
      PID:1028
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:1796
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:320

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1
T1112

Credential Access

Discovery

System Information Discovery

1
T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Defacement

1
T1491

Replay Monitor

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Downloads

  • C:\chkvc3MvG.README.txt
    MD5

    07f76e653f6d78ad8ec2fee0af5f8fd4

    SHA1

    4c1624e7ed2ec95e967816b44d7232aefcdf3ff5

    SHA256

    a44c657f4da66a742f2615c445b457589d658a806ce6d01dc37f183a601cbea3

    SHA512

    695f89acdcb645dea20f22c1e1a8a0ed00f7b4c76cffffb85057144ed67f124985b2eb73719429454f11944daa94e8927e314b1a5ce1b384cace59845f7caebf

    Download Submit
  • memory/1028-57-0x0000000000000000-mapping.dmp
    Download
  • memory/1192-53-0x0000000075871000-0x0000000075873000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1192-54-0x0000000000935000-0x0000000000946000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1192-55-0x0000000000930000-0x0000000000931000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1192-56-0x0000000000946000-0x0000000000947000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1796-60-0x0000000000000000-mapping.dmp
    Download
  • memory/1796-61-0x000007FEFB541000-0x000007FEFB543000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1796-62-0x0000000004260000-0x0000000004261000-memory.dmp
    Filesize

    4KB

    Download