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Analysis

  • max time kernel
    147s
  • max time network
    145s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-08-2024 17:26

General

  • Target

    32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe

  • Size

    844KB

  • MD5

    a6f049a056e37a65280ddfe17f689b50

  • SHA1

    479e08954d4d58b643ada84da280bd01c71e779a

  • SHA256

    32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08

  • SHA512

    f7effb9a12c0723ed336117e3399940d4fe9e3682eec18cdf19cf074dab27d2ce8b1c14d30f1e3e26b5883732f8b970477a32ca4c12fe36a8fa3bc452586511b

  • SSDEEP

    24576:40bAk9PkFMVNgsbj6d2dXrpcpZBWGyDs1lwBUeF:PEGNgsnHDIZB/yDseB

Malware Config

Extracted

Family

djvu

C2

http://asvb.top/nddddhsspen6/get.php

Attributes
  • extension

    .ehiz

  • offline_id

    94ZMASYQt4QGhpOo8gEwVMGuTvtKzw670thXUlt1

  • payload_url

    http://asvb.top/files/penelop/updatewin1.exe

    http://asvb.top/files/penelop/updatewin2.exe

    http://asvb.top/files/penelop/updatewin.exe

    http://asvb.top/files/penelop/3.exe

    http://asvb.top/files/penelop/4.exe

    http://asvb.top/files/penelop/5.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-IMhsjaUZQE 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: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0299ewgfDd

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 12 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 2 IoCs
  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 36 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe
    "C:\Users\Admin\AppData\Local\Temp\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2724
    • C:\Users\Admin\AppData\Local\Temp\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe
      "C:\Users\Admin\AppData\Local\Temp\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2984
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\c17ba8b1-3af0-4b6a-8286-f45ae3d86133" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:392
      • C:\Users\Admin\AppData\Local\Temp\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe
        "C:\Users\Admin\AppData\Local\Temp\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:3624
        • C:\Users\Admin\AppData\Local\Temp\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe
          "C:\Users\Admin\AppData\Local\Temp\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          PID:2304
          • C:\Windows\SysWOW64\WerFault.exe
            C:\Windows\SysWOW64\WerFault.exe -u -p 2304 -s 220
            5⤵
            • Program crash
            PID:1668
  • C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2304 -ip 2304
    1⤵
      PID:800
    • C:\Users\Admin\AppData\Local\c17ba8b1-3af0-4b6a-8286-f45ae3d86133\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe
      C:\Users\Admin\AppData\Local\c17ba8b1-3af0-4b6a-8286-f45ae3d86133\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe --Task
      1⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:3484
      • C:\Users\Admin\AppData\Local\c17ba8b1-3af0-4b6a-8286-f45ae3d86133\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe
        C:\Users\Admin\AppData\Local\c17ba8b1-3af0-4b6a-8286-f45ae3d86133\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe --Task
        2⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        PID:3460

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12

      Filesize

      1KB

      MD5

      7fb5fa1534dcf77f2125b2403b30a0ee

      SHA1

      365d96812a69ac0a4611ea4b70a3f306576cc3ea

      SHA256

      33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

      SHA512

      a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8

      Filesize

      436B

      MD5

      971c514f84bba0785f80aa1c23edfd79

      SHA1

      732acea710a87530c6b08ecdf32a110d254a54c8

      SHA256

      f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

      SHA512

      43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12

      Filesize

      174B

      MD5

      c7308b02603e6dce85ccc96640503ec1

      SHA1

      ef7fa9f0661dab2ee8a07a0ef696cfa435d0238c

      SHA256

      b9b5aae5aada05eb5209eb733bb549c4a07a34d15cbde08dc575a459d8b53803

      SHA512

      5cd6589d555dd1283aa0f46e6804bbd46ce3dea5f3732b2455f28708c993b88e77e3c588b5b72f6713d5f45b28d8781d37a17901ecce49dc2a30b3b189ecff7f

    • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8

      Filesize

      170B

      MD5

      32026458b4a1a5fe52127f3c4e969f33

      SHA1

      ead15e517334c5d7c8d474a7cdf8a6ab43ee36d6

      SHA256

      e2b469f77517a4773b62b90a5e835a66250affdc1e46dcc817151702a38c6591

      SHA512

      392d6cddf9d222eeb1dd382191c133f3fede30c5a96f304c10d1ff2650b3c91c181654a7c369c5e8fc11088af6b96857dae96e903ab6560e98c058bc2287f997

    • C:\Users\Admin\AppData\Local\c17ba8b1-3af0-4b6a-8286-f45ae3d86133\32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08.exe

      Filesize

      844KB

      MD5

      a6f049a056e37a65280ddfe17f689b50

      SHA1

      479e08954d4d58b643ada84da280bd01c71e779a

      SHA256

      32b0fbaf95fefcc9b89243be8721625592fc9ed92d76a48cab263898fd3d5c08

      SHA512

      f7effb9a12c0723ed336117e3399940d4fe9e3682eec18cdf19cf074dab27d2ce8b1c14d30f1e3e26b5883732f8b970477a32ca4c12fe36a8fa3bc452586511b

    • memory/2304-23-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2304-21-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2304-25-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2724-2-0x00000000021D0000-0x00000000022EB000-memory.dmp

      Filesize

      1.1MB

    • memory/2724-1-0x0000000002130000-0x00000000021CB000-memory.dmp

      Filesize

      620KB

    • memory/2984-5-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2984-17-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2984-6-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2984-4-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/2984-3-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3460-40-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3460-39-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3460-32-0x0000000000400000-0x0000000000537000-memory.dmp

      Filesize

      1.2MB

    • memory/3484-34-0x0000000000400000-0x00000000004DC000-memory.dmp

      Filesize

      880KB

    • memory/3484-33-0x0000000000400000-0x00000000004DC000-memory.dmp

      Filesize

      880KB

    • memory/3624-20-0x0000000000400000-0x00000000004DC000-memory.dmp

      Filesize

      880KB

    • memory/3624-22-0x0000000000400000-0x00000000004DC000-memory.dmp

      Filesize

      880KB