Analysis

  • max time kernel
    295s
  • max time network
    245s
  • platform
    windows7_x64
  • resource
    win7-20240704-en
  • resource tags

    arch:x64arch:x86image:win7-20240704-enlocale:en-usos:windows7-x64system
  • submitted
    22-08-2024 22:44

General

  • Target

    d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a.exe

  • Size

    777KB

  • MD5

    006edf0ac466164ddc9e0ac56474fe0a

  • SHA1

    ee9f512713af63759f11279090d2c8004762735b

  • SHA256

    d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a

  • SHA512

    43305369fea2dad52d51bc9d5947a2f7e78d33baadd07093c250b9eb1fd3762c511033bbfae2b8d6eb52254306d137e29cd15e0b30b0f6d44a9d4f3d12b8b808

  • SSDEEP

    24576:aG18MH/r+RAIFqLN7/uW/Nau09jMxrc5N:3aMD+RANBKIJ09j

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\d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a.exe
    "C:\Users\Admin\AppData\Local\Temp\d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2520
    • C:\Users\Admin\AppData\Local\Temp\d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a.exe
      "C:\Users\Admin\AppData\Local\Temp\d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:1240
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\e18487a4-7997-417f-ac7a-de4810aebbc7" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2608
      • C:\Users\Admin\AppData\Local\Temp\d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a.exe
        "C:\Users\Admin\AppData\Local\Temp\d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:1220
        • C:\Users\Admin\AppData\Local\Temp\d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a.exe
          "C:\Users\Admin\AppData\Local\Temp\d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2712

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

    6637d410a82cd6db74209e73423002de

    SHA1

    54f286f1a859d0c1c62d2acffee3cb665f7d7402

    SHA256

    3eaefd442fc4744a8e3542f0e1f87adff1e72097af3ce0f488744a57e59b3166

    SHA512

    8cdf3dd9cf8bed280d7c19b9f971621ee7ec000a1e773b40688b70ec8e866ed0c17ae618878bba39f0b51fcba9e3bff71de678f9d35c8e6dc50f73a874598eb6

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

    Filesize

    342B

    MD5

    c7b19d3bef576a8ee596982c673731d2

    SHA1

    608ae6750a3c01ef11248a9a81b0a36da52ef205

    SHA256

    886dd2e2380e53f156da893c249d02f3701b8b24e4b9175a8a3067e4e7ef9425

    SHA512

    b0aa903c9dffef447f3fd929316631d2c34a4e091a1a163698063a354bff15fb0bae1bc62b68a5701f7f636a095021c15fd45c0ce670f3b360d59fb6ffd8e343

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

    Filesize

    170B

    MD5

    b603c79b10a4040148624375aebdfca9

    SHA1

    bbf96a64c5bf1c29145d499f98edb6734b76cd16

    SHA256

    0fcbc87c1d992292ed6881b72d022f7aee91c897ad09cd9584574433c5b6035a

    SHA512

    7875752c64fe2ac180fe3e461adb2d08b503832800251212eed17bcfb71fd6849d751a1dea0c941ba75ec1b88e095a1dec5f8467d689e49d12a09c7521c973cd

  • C:\Users\Admin\AppData\Local\Temp\CabF4AB.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\e18487a4-7997-417f-ac7a-de4810aebbc7\d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a.exe

    Filesize

    777KB

    MD5

    006edf0ac466164ddc9e0ac56474fe0a

    SHA1

    ee9f512713af63759f11279090d2c8004762735b

    SHA256

    d343ea857cdf97aa0ccfd14970425c6888bd216d36ad7f6255a044bed36a4b2a

    SHA512

    43305369fea2dad52d51bc9d5947a2f7e78d33baadd07093c250b9eb1fd3762c511033bbfae2b8d6eb52254306d137e29cd15e0b30b0f6d44a9d4f3d12b8b808

  • memory/1220-31-0x0000000000400000-0x00000000004D3000-memory.dmp

    Filesize

    844KB

  • memory/1220-36-0x0000000000400000-0x00000000004D3000-memory.dmp

    Filesize

    844KB

  • memory/1220-30-0x0000000000310000-0x00000000003A1000-memory.dmp

    Filesize

    580KB

  • memory/1240-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1240-7-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1240-28-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1240-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/1240-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2520-2-0x0000000001CD0000-0x0000000001DEB000-memory.dmp

    Filesize

    1.1MB

  • memory/2520-0-0x0000000001C30000-0x0000000001CC1000-memory.dmp

    Filesize

    580KB

  • memory/2520-1-0x0000000001C30000-0x0000000001CC1000-memory.dmp

    Filesize

    580KB

  • memory/2712-38-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2712-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2712-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2712-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2712-54-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2712-59-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2712-61-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2712-62-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2712-63-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB