Analysis

  • max time kernel
    142s
  • max time network
    118s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    04-09-2024 01:27

General

  • Target

    2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84.exe

  • Size

    812KB

  • MD5

    7972b08246e568495d9d116fc2d0b159

  • SHA1

    3e12225494f08369858453fd9fc7481b4f788165

  • SHA256

    2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84

  • SHA512

    f0ead246f31d1badb3cd5fd67cb5b3081f027fdad44dd50364734d61722f1bc2cacb1ad5d842ca3f7000a2699e7bdf059a508b54a95f5e155ae274d70e833ff7

  • SSDEEP

    24576:60oeRhL4Zihw/WaRupypku1ADMH0h0kT:60J482RuRuQMm

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test1/get.php

Attributes
  • extension

    .watz

  • offline_id

    Lc3VTezPWbMhuVAQFzJUdeA68PwI7UDpc5aKHYt1

  • payload_url

  • 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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/abe121434ad837dd5bdd03878a14485820240531135509/34284d Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0874PsawqS

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 14 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • 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 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 5 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 30 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84.exe
    "C:\Users\Admin\AppData\Local\Temp\2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2708
    • C:\Users\Admin\AppData\Local\Temp\2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84.exe
      "C:\Users\Admin\AppData\Local\Temp\2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2864
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\5b2d3529-355f-45b6-9790-af5f87fd1a7c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2596
      • C:\Users\Admin\AppData\Local\Temp\2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84.exe
        "C:\Users\Admin\AppData\Local\Temp\2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2720
        • C:\Users\Admin\AppData\Local\Temp\2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84.exe
          "C:\Users\Admin\AppData\Local\Temp\2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2136

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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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

    170f9508d4efdd56be27529db9af61a4

    SHA1

    cc77adf90ca47a42230674e373af2fc4f42d9230

    SHA256

    d5d97e83382a7b65483ad23019bacddfbe694f2b1250734ae97761d0ba8562c0

    SHA512

    b20e3cdfec9572d73bbf53a7590cbb9d1d2a2dbbb6828f731887adfc67cd23a3c9df7a2f7309dda8dba40fd88f99f544064eb1bb995feaba4a399e569536d098

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

    Filesize

    342B

    MD5

    2cebd955561dba9b1a6ea67c6cbac7a2

    SHA1

    ca119d5f1b070a6de1ea3f7c3a68989e1a5c3072

    SHA256

    126fc477a073bda17ac1a1e6bc43ce4f34d9d03910fbdf5602d3f9049b97a5e7

    SHA512

    4d236fe4955ba8e098bb117ba02441e4ab08e501378e0a5bf410aad58b458f9e08df0c44008ce656eafffcf47c665dd96d51909c5f652c80d1292030490d267f

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

    Filesize

    170B

    MD5

    250f2e2040b0203cebea0cf973ba2425

    SHA1

    64e060d986c1a1d9f7948ddc5c33641d89fd43ac

    SHA256

    e74802d39dbcc5ba0b095f188b70a71c122dfbed26af70a165ea4aaa09cd28af

    SHA512

    dbfd912d8d6015a4a9a211cca57a011972437a0ea408e1982b4a3043491ccf29e93366a9dc23e7169a1ba48033d77dce408567c28ed96e8d84463809d7c36971

  • C:\Users\Admin\AppData\Local\5b2d3529-355f-45b6-9790-af5f87fd1a7c\2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84.exe

    Filesize

    812KB

    MD5

    7972b08246e568495d9d116fc2d0b159

    SHA1

    3e12225494f08369858453fd9fc7481b4f788165

    SHA256

    2a6c90c8db27e6ac04c7e339dfe4b3c2d47a292bcf6fc1c5b4e0ae62fc81ff84

    SHA512

    f0ead246f31d1badb3cd5fd67cb5b3081f027fdad44dd50364734d61722f1bc2cacb1ad5d842ca3f7000a2699e7bdf059a508b54a95f5e155ae274d70e833ff7

  • C:\Users\Admin\AppData\Local\Temp\Cab7F9B.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • memory/2136-56-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2136-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2136-65-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2136-64-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2136-61-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2136-63-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2136-39-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2136-40-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2136-57-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2708-0-0x0000000000660000-0x00000000006F1000-memory.dmp

    Filesize

    580KB

  • memory/2708-66-0x0000000001ED0000-0x0000000001FEB000-memory.dmp

    Filesize

    1.1MB

  • memory/2708-7-0x0000000000660000-0x00000000006F1000-memory.dmp

    Filesize

    580KB

  • memory/2708-5-0x0000000001ED0000-0x0000000001FEB000-memory.dmp

    Filesize

    1.1MB

  • memory/2708-1-0x0000000000660000-0x00000000006F1000-memory.dmp

    Filesize

    580KB

  • memory/2720-33-0x0000000000400000-0x000000000065D000-memory.dmp

    Filesize

    2.4MB

  • memory/2720-37-0x0000000000400000-0x000000000065D000-memory.dmp

    Filesize

    2.4MB

  • memory/2720-32-0x0000000001E20000-0x0000000001EB1000-memory.dmp

    Filesize

    580KB

  • memory/2864-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2864-9-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2864-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2864-31-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2864-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB