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Analysis

  • max time kernel
    140s
  • max time network
    132s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    21/12/2024, 23:53

General

  • Target

    JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe

  • Size

    778KB

  • MD5

    bb06d1846ea54e5f14a111df981b1892

  • SHA1

    f2291f33e8b08dc1ef9de6612116e585325d3202

  • SHA256

    994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1

  • SHA512

    5d5ce9d29342783f6ee90c042e64517fd4e3725ebeb28ae6b824716e7c455786af3b63b5344bb6dcd65cf2586619cfbe2c5a05ac758ca0ebccbe4d1b2cae8190

  • SSDEEP

    12288:wtKJjNzLPds7vqfRrZm9mxu1XN92EGMcow/rEjXAvZJ3dkWW:wIZldf7nWNUZdZrEkvvdkWW

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .gtys

  • offline_id

    qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1

  • 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-fnn5kv33Vv 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: 0439JIjdm

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_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2244
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe"
      2⤵
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2840
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\64e55182-6e69-4a8f-805f-3e5e2d220f42" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:2804
      • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
        "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:2780
        • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe
          "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:2612

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

    d072c4eab146679f15dc30539703337a

    SHA1

    29b2a65445fb6533c728095d411ef80914a15ea1

    SHA256

    475ffb7a56d5e67d119fff1e943237866f41765df2a058bc9e358ecbac004985

    SHA512

    238e12f672d7c1f2a3addde3c1cd73008d5878ceccae330bb883eb3c64047f306f42a45a6aa19d4ec1d952112f39c38d9b59f055b8a54ad520bd024a1c5c163a

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

    Filesize

    342B

    MD5

    44e5c833ae3d54168a6e0a5f1e88bc25

    SHA1

    f0d9fcf5a2d8613e410df08141926e57a21ac1cb

    SHA256

    7291b27dd1610313350ea697328306b02c7ba9857909551ff7da53c1a91f4e6a

    SHA512

    33f127b91779624c39990e48e2e76f9eb5e7a3d0ecf80ad2978d3ac3bff94272fcb253519f3a7c3140df50ed27b2325edf57ca1f124b23c5b7764be08e5fa39c

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

    Filesize

    170B

    MD5

    0804520effff1440031916ab13c9a068

    SHA1

    9d804a6865a5c592248ff57f3f4c01ee39d5a0cc

    SHA256

    5733c69d38c2bb3006cdcbf424940d5822b6d1a9231d977ccc36307e06996540

    SHA512

    c0a24fe7b06cc8815cc5a5ae26df6692e87b7f4293568c823c3d0a4cae475d22009eb93a656d2586d6fb0ae01ee6ea34e7716a0965c24332effd6dcb4a084dc9

  • C:\Users\Admin\AppData\Local\64e55182-6e69-4a8f-805f-3e5e2d220f42\JaffaCakes118_994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1.exe

    Filesize

    778KB

    MD5

    bb06d1846ea54e5f14a111df981b1892

    SHA1

    f2291f33e8b08dc1ef9de6612116e585325d3202

    SHA256

    994ad9ed0f4adfbfa268dee621b0cba72403f7fbb3cbe55bf1831f0c5ade65f1

    SHA512

    5d5ce9d29342783f6ee90c042e64517fd4e3725ebeb28ae6b824716e7c455786af3b63b5344bb6dcd65cf2586619cfbe2c5a05ac758ca0ebccbe4d1b2cae8190

  • C:\Users\Admin\AppData\Local\Temp\Cab2BF0.tmp

    Filesize

    70KB

    MD5

    49aebf8cbd62d92ac215b2923fb1b9f5

    SHA1

    1723be06719828dda65ad804298d0431f6aff976

    SHA256

    b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

    SHA512

    bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

  • memory/2244-1-0x0000000000220000-0x00000000002B2000-memory.dmp

    Filesize

    584KB

  • memory/2244-0-0x0000000000220000-0x00000000002B2000-memory.dmp

    Filesize

    584KB

  • memory/2244-6-0x00000000004F0000-0x000000000060B000-memory.dmp

    Filesize

    1.1MB

  • memory/2244-5-0x0000000000220000-0x00000000002B2000-memory.dmp

    Filesize

    584KB

  • memory/2612-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-68-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-39-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-72-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-71-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-70-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-38-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-65-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-57-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2612-56-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2780-32-0x00000000002B0000-0x0000000000342000-memory.dmp

    Filesize

    584KB

  • memory/2780-36-0x0000000000400000-0x00000000004EE000-memory.dmp

    Filesize

    952KB

  • memory/2840-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2840-2-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2840-8-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2840-9-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2840-31-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB