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Analysis

  • max time kernel
    143s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    29/12/2024, 14:33

General

  • Target

    JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe

  • Size

    783KB

  • MD5

    77ac219ea2faa1aace0d07618bf6d186

  • SHA1

    41a25a225f39c0b07a29f44a02fdb81b7844c4fb

  • SHA256

    0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785

  • SHA512

    f6bd16453ba4f99dd638a0d0875c366f613ffb746997be72d26e37aec9d7a78e6a583f4ec07b314c5ec44adc64b767891dee2b71ee4cc0d8f6b1881d22ddf82f

  • SSDEEP

    24576:PNAoY+U/xypdg1DG6B4XBcPRiHMdzdh+L0:n4gg1DGa+URiHNL

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .ghas

  • offline_id

    miqhSGmGE63yWs53FTz0fnp8eCARpnaYE3O3p2t1

  • 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-0SLhZxAjRX 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: 0445JIjdm

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_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2668
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2684
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\384bbb17-c93b-41b5-8502-69fbd9882bd9" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2764
      • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
        "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2576
        • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe
          "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2648

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

    defd703c23fd5426ae9fe632197f0ecb

    SHA1

    19097abfb992dec2a57487f94338c18a059af7f7

    SHA256

    262c9de0ab816849eaf23f7478dd921273fc9134ad395c06b2671d57dc576b44

    SHA512

    861e779e55a6f630e882cdcb6ad8775bfad9b898af486bcc2e3795b10af82536b65546a5e8ba8ea82bfbf5056357144d45ffe4a9f074c5097ffb13173f6362ba

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

    Filesize

    342B

    MD5

    75593c225ad9e04b18da862b207c233c

    SHA1

    9b66286080c00078454829f01efbdde75ce0361f

    SHA256

    c2aa01fd5ddf7b3dd83521d78531d399247f85267e0986fa6ca12be25b2ced61

    SHA512

    2617e019d2a59cba2b9d0297744d684e6351add79b36f06c4bfbc8dbcda9da8778830d08a67711a2553139d1ebb7252a7a1c69a7aadd099517bdc4455992b1ba

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

    Filesize

    170B

    MD5

    264b5842f7a095e2240efa94ed01504e

    SHA1

    1bb37e92703b3a0a8dcef66e8456fa9af5886c13

    SHA256

    761bae69cdc0958a8124eb86e408af702c5462c32168b11f0a1eac7d9ce12eac

    SHA512

    4122edd2d7e2e3aed6636e1c5f4441c939a690c69895272470817554fa3cbc7240255de544b0fb15917510ce01814bb924469a400458f7cc2e29cfcedc8622e9

  • C:\Users\Admin\AppData\Local\384bbb17-c93b-41b5-8502-69fbd9882bd9\JaffaCakes118_0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785.exe

    Filesize

    783KB

    MD5

    77ac219ea2faa1aace0d07618bf6d186

    SHA1

    41a25a225f39c0b07a29f44a02fdb81b7844c4fb

    SHA256

    0460af3b1dc1bc78fd312592656322e58b7dbc7761dbabeb90729e5e6f6b4785

    SHA512

    f6bd16453ba4f99dd638a0d0875c366f613ffb746997be72d26e37aec9d7a78e6a583f4ec07b314c5ec44adc64b767891dee2b71ee4cc0d8f6b1881d22ddf82f

  • C:\Users\Admin\AppData\Local\Temp\CabF71B.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • memory/2576-30-0x0000000000340000-0x00000000003D1000-memory.dmp

    Filesize

    580KB

  • memory/2576-37-0x0000000000400000-0x00000000004EC000-memory.dmp

    Filesize

    944KB

  • memory/2576-31-0x0000000000400000-0x00000000004EC000-memory.dmp

    Filesize

    944KB

  • memory/2648-52-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2648-51-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2648-68-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2648-38-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2648-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2648-64-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2648-53-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2648-61-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2648-67-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2648-66-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2668-2-0x0000000001D50000-0x0000000001E6B000-memory.dmp

    Filesize

    1.1MB

  • memory/2668-0-0x0000000000590000-0x0000000000621000-memory.dmp

    Filesize

    580KB

  • memory/2668-1-0x0000000000590000-0x0000000000621000-memory.dmp

    Filesize

    580KB

  • memory/2668-6-0x0000000000590000-0x0000000000621000-memory.dmp

    Filesize

    580KB

  • memory/2684-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2684-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2684-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2684-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2684-9-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB