Overview

overview

10

Static

static

10

b4b9fdf30c...e7.exe

windows7_x64

10

b4b9fdf30c...e7.exe

windows10_x64

10

Resubmissions

24-10-2021 15:21

211024-srmaaafdck 10

21-10-2021 13:17

211021-qjbsgaada3 10

Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-en-20211014
  • submitted
    21-10-2021 13:17

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General

  • Target

    b4b9fdf30c017af1a8a3375218e43073117690a71c3f00ac5f6361993471e5e7.exe

  • Size

    78KB

  • MD5

    5e2a1323dbf28eac8b3f4df9cb4f2d45

  • SHA1

    af77a09387df4ec967a8314ba0f93da0ef8e57ee

  • SHA256

    b4b9fdf30c017af1a8a3375218e43073117690a71c3f00ac5f6361993471e5e7

  • SHA512

    c2ba4f7458298129a8d2f1ac50640601d59086048ecc8d3d88985c31edf4014e4f4838308192ab39fb21d71a9b362a38a93edff58b570ec6f5ccfb940d871b94

Score
10/10
blackmatterransomware

Malware Config

Extracted

Path

C:\6amPnJyPq.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://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/O3KTUJZRE6CB4Q1OBR >>> Warning! Recovery recommendations. We strongly recommend you to do not MODIFY or REPAIR your files, that will damage them.
URLs

http://supp24yy6a66hwszu2piygicgwzdtbwftb76htfj7vnip3getgqnzxid.onion/O3KTUJZRE6CB4Q1OBR

Signatures

  • BlackMatter Ransomware

    BlackMatter ransomware group claims to be Darkside and REvil succesor.

    ransomwareblackmatter
  • Modifies extensions of user files 18 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\b4b9fdf30c017af1a8a3375218e43073117690a71c3f00ac5f6361993471e5e7.exe
    "C:\Users\Admin\AppData\Local\Temp\b4b9fdf30c017af1a8a3375218e43073117690a71c3f00ac5f6361993471e5e7.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:1680
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" /p C:\6amPnJyPq.README.txt
      2⤵
      • Opens file in notepad (likely ransom note)
      • Suspicious use of WriteProcessMemory
      PID:1600
      • C:\Windows\splwow64.exe
        C:\Windows\splwow64.exe 12288
        3⤵
        • Modifies registry class
        • Suspicious behavior: GetForegroundWindowSpam
        • Suspicious use of SetWindowsHookEx
        PID:868
  • C:\Windows\system32\vssvc.exe
    C:\Windows\system32\vssvc.exe
    1⤵
    • Suspicious use of AdjustPrivilegeToken
    PID:928

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:\6amPnJyPq.README.txt
    MD5

    2a2ac841d6b7515f4b1021b92cc5f072

    SHA1

    e48a7a2be20b978f71a92f12ada328bcfd0b89c6

    SHA256

    9a59566d9ef3bab7faf9abc23f25aa19218d5afa2a910144acd011a78521377e

    SHA512

    a7944a10f2721db3dbdf5c36e80aae057c5fc8e2aab22a8d50c4d4e6436a7e22313257dd934961db1fa5e506c39ca23600c9d3e96a463221c13b54651bd47579

    Download Submit
  • memory/868-62-0x0000000000000000-mapping.dmp
    Download
  • memory/868-63-0x000007FEFBA81000-0x000007FEFBA83000-memory.dmp
    Filesize

    8KB

    Download
  • memory/868-64-0x00000000041E0000-0x00000000041E1000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1600-59-0x0000000000000000-mapping.dmp
    Download
  • memory/1680-55-0x00000000754F1000-0x00000000754F3000-memory.dmp
    Filesize

    8KB

    Download
  • memory/1680-57-0x0000000000230000-0x0000000000231000-memory.dmp
    Filesize

    4KB

    Download
  • memory/1680-56-0x0000000000235000-0x0000000000246000-memory.dmp
    Filesize

    68KB

    Download
  • memory/1680-58-0x0000000000246000-0x0000000000247000-memory.dmp
    Filesize

    4KB

    Download