Overview

overview

10

Static

static

dridex

windows10-2004_x64

10

Analysis

  • max time kernel
    131s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    19-05-2022 18:32

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General

  • Target

    3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d.exe

  • Size

    823KB

  • MD5

    7eef59a596b36dfe55720e3cbfb4b86e

  • SHA1

    d916f3674c147a078fcd9b091f89df05b90a852e

  • SHA256

    3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d

  • SHA512

    b6d716cd38c80412d335d9e6e98d43c9899c4a7037709289c42e8b1adac4abdfff080f6807680b839f39ce568d2b9ad97c31070a1477cfe32c25a71b784e3903

Score
10/10
djvudiscoverypersistenceransomwaresuricata

Malware Config

Extracted

Family

djvu

C2

http://ugll.org/test1/get.php

Attributes
  • extension

    .dfwe

  • offline_id

    eBNgvyGQV1Hmt9DBdxVRs8qPi1agsS7OaohPmit1

  • payload_url

    http://zerit.top/dl/build2.exe

    http://ugll.org/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-j3AdKrnQie Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: admin@helpdata.top Reserve e-mail address to contact us: supportsys@airmail.cc Your personal ID: 0480JIjdm

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 8 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

    ransomwaredjvu
  • suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    suricata: ET MALWARE Potential Dridex.Maldoc Minimal Executable Request

    suricata
  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Public Key Download

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Public Key Download

    suricata
  • suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

    suricata: ET MALWARE Win32/Filecoder.STOP Variant Request for Public Key

    suricata
  • suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

    suricata: ET MALWARE Win32/Vodkagats Loader Requesting Payload

    suricata
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Modifies file permissions 1 TTPs 1 IoCs
    discovery
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Modifies system certificate store 2 TTPs 2 IoCs
    evasionspywaretrojan
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d.exe
    "C:\Users\Admin\AppData\Local\Temp\3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2360
    • C:\Users\Admin\AppData\Local\Temp\3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d.exe
      "C:\Users\Admin\AppData\Local\Temp\3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Modifies system certificate store
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3204
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\4d73a646-dd3b-4183-bdee-2f03c5f9fc36" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:4788
      • C:\Users\Admin\AppData\Local\Temp\3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d.exe
        "C:\Users\Admin\AppData\Local\Temp\3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4476
        • C:\Users\Admin\AppData\Local\Temp\3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d.exe
          "C:\Users\Admin\AppData\Local\Temp\3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • Suspicious behavior: EnumeratesProcesses
          PID:3676
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k appmodel -p -s camsvc
    1⤵
      PID:4628

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Initial Access

    Execution

    Persistence

    Registry Run Keys / Startup Folder

    1
    T1060

    Privilege Escalation

    Defense Evasion

    File Permissions Modification

    1
    T1222

    Modify Registry

    2
    T1112

    Install Root Certificate

    1
    T1130

    Credential Access

    Discovery

    Query Registry

    1
    T1012

    System Information Discovery

    2
    T1082

    Lateral Movement

    Collection

    Exfiltration

    Command and Control

    Impact

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\4d73a646-dd3b-4183-bdee-2f03c5f9fc36\3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d.exe
      Filesize

      823KB

      MD5

      7eef59a596b36dfe55720e3cbfb4b86e

      SHA1

      d916f3674c147a078fcd9b091f89df05b90a852e

      SHA256

      3303419223798bfa368876c36c5819c193fafc8d58d8f4392f4b89e20a37cf9d

      SHA512

      b6d716cd38c80412d335d9e6e98d43c9899c4a7037709289c42e8b1adac4abdfff080f6807680b839f39ce568d2b9ad97c31070a1477cfe32c25a71b784e3903

      Download Submit
    • memory/2360-133-0x00000000006FB000-0x000000000078C000-memory.dmp
      Filesize

      580KB

      Download
    • memory/2360-134-0x00000000022A0000-0x00000000023BB000-memory.dmp
      Filesize

      1.1MB

      Download
    • memory/3204-136-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/3204-135-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/3204-132-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/3204-130-0x0000000000000000-mapping.dmp
      Download
    • memory/3204-131-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/3676-140-0x0000000000000000-mapping.dmp
      Download
    • memory/3676-142-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/3676-144-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/3676-145-0x0000000000400000-0x0000000000537000-memory.dmp
      Filesize

      1.2MB

      Download
    • memory/4476-139-0x0000000000000000-mapping.dmp
      Download
    • memory/4476-143-0x00000000005E9000-0x000000000067A000-memory.dmp
      Filesize

      580KB

      Download
    • memory/4788-137-0x0000000000000000-mapping.dmp
      Download