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Analysis

  • max time kernel
    145s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22/12/2024, 07:41

General

  • Target

    JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe

  • Size

    833KB

  • MD5

    76986b9982ec8ce988467ea9b5c15734

  • SHA1

    7ec7651244c50b5bc9445540347475104da96417

  • SHA256

    3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f

  • SHA512

    8142d5e0a7837733e1d71298588613b31f6c20a340365d6f34e77131e98882933ab29624c65b7c44b4279bf4fc3fd02598c1d185f97eeaddbf4ff5237a847c18

  • SSDEEP

    12288:QXSm4PokKKNZ00nOf9sgI+LE0Qas8g28P89M1sNaOamKBJYunnwR:wSnKoZpkLLrP5M0YrJzwR

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .wdlo

  • offline_id

    i0fXrUHVihm5xsI9Icg243YMPJqd748Ocimkyjt1

  • payload_url

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

    http://fuyt.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-0S984cQ4B3 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: 0430JIjdm

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 15 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Djvu 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\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3068
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2628
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\e39fc591-39ba-4c17-91a2-fd5c4b8d5404" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2688
      • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
        "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2772
        • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe
          "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2644

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

    67e486b2f148a3fca863728242b6273e

    SHA1

    452a84c183d7ea5b7c015b597e94af8eef66d44a

    SHA256

    facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

    SHA512

    d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

  • 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

    ee8c1a218ec55b66b0d547175b09134e

    SHA1

    d956e2309be644583a129f0d05a54ac1b8333507

    SHA256

    56f47257df9228fd196c898ea16341c8d0688943831da2201ddf166b954a1619

    SHA512

    c644f9dcf0c12f7f27b5978ca966863257669dc97e8cf0c561e485d63a802d55c53f86cd6a718da9fa2b5a954212701d58d10d06a2adaad92ad0ef4ca264dc69

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

    Filesize

    342B

    MD5

    9b5a6843c7b007fac3e1faf6bb576a81

    SHA1

    3d11bb01d0e8c413a2e9302df26490e2c2b06cfa

    SHA256

    e57f847124fa616ce275d6a9b980e745cb5bd4828ebe0f7e81ed6dc93dbda56f

    SHA512

    a2dd2e0159882c0e52fd1667d9b10963d319c7e27045a2c084ce08c7d41750779a054daf6e76315e97e67a1ba6f11e5cbbbfefe5a2b0926175d1452782a690a6

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

    Filesize

    170B

    MD5

    bca4bfbebbc8a167b33e6a003fa00bd8

    SHA1

    fd28b3ed34d4ad0d1f0ec78d1b0d495cb58d704f

    SHA256

    39d0f85f93f4d9d19637c4f690b76bdaebd94c1fd49594df22ebba71c231eb72

    SHA512

    2526edaef27544cf5a5f199e606647244f7874744fe661a6b01179b70f34f39f8ba58b1355c9d2df875a5738343aabe3890249cf425cb7219b93a2e771ac2c3c

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

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • C:\Users\Admin\AppData\Local\e39fc591-39ba-4c17-91a2-fd5c4b8d5404\JaffaCakes118_3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f.exe

    Filesize

    833KB

    MD5

    76986b9982ec8ce988467ea9b5c15734

    SHA1

    7ec7651244c50b5bc9445540347475104da96417

    SHA256

    3981a16eb4ef5e1c2d97d708420ac73f53b8569adef4e88c8df9ff9166613a5f

    SHA512

    8142d5e0a7837733e1d71298588613b31f6c20a340365d6f34e77131e98882933ab29624c65b7c44b4279bf4fc3fd02598c1d185f97eeaddbf4ff5237a847c18

  • memory/2628-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2628-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2628-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2628-9-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2628-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2644-38-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2644-66-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2644-70-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2644-69-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2644-68-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2644-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2644-57-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2644-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2644-52-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2644-51-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2772-30-0x0000000000220000-0x00000000002B1000-memory.dmp

    Filesize

    580KB

  • memory/2772-31-0x0000000000400000-0x0000000000514000-memory.dmp

    Filesize

    1.1MB

  • memory/2772-35-0x0000000000400000-0x0000000000514000-memory.dmp

    Filesize

    1.1MB

  • memory/3068-1-0x00000000002A0000-0x0000000000331000-memory.dmp

    Filesize

    580KB

  • memory/3068-2-0x0000000001DC0000-0x0000000001EDB000-memory.dmp

    Filesize

    1.1MB

  • memory/3068-7-0x00000000002A0000-0x0000000000331000-memory.dmp

    Filesize

    580KB

  • memory/3068-0-0x00000000002A0000-0x0000000000331000-memory.dmp

    Filesize

    580KB