Analysis

  • max time kernel
    142s
  • max time network
    114s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    15/03/2025, 01:35

General

  • Target

    2025-03-15_20f7e67f860383010d15d12a842b53e1_amadey_rhadamanthys_smoke-loader.exe

  • Size

    735KB

  • MD5

    20f7e67f860383010d15d12a842b53e1

  • SHA1

    9d5f6ea96520f13394999d11ddbc0c486f13c824

  • SHA256

    eb6a892cf3e87999e9c01c35d082c1308a8744b16aa1b5403fc40cc63eb0f02f

  • SHA512

    3b0dead54a6966b93892915ee4e10695a0a07b94745b18df982ae784cbf1d8d6b4b6de9c031e59cfdde941135eec823c54b5caf24adf7a7a9d9d4c93e90460e9

  • SSDEEP

    12288:qmhHfel6G6+O3B1uONaZXxQ/nZ9yJouprwTxGgS/4EH30KNd:jxDB1uON4XxQPZMJo8ngo48Eqd

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .wayn

  • offline_id

    V5TMuF1BBuDZFeJXDU5xmjrzp6rwS1IuZWNpDCt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.com/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-6Dm02j1lRa 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: 0740ISdik

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 19 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Djvu family
  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2025-03-15_20f7e67f860383010d15d12a842b53e1_amadey_rhadamanthys_smoke-loader.exe
    "C:\Users\Admin\AppData\Local\Temp\2025-03-15_20f7e67f860383010d15d12a842b53e1_amadey_rhadamanthys_smoke-loader.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:628
    • C:\Users\Admin\AppData\Local\Temp\2025-03-15_20f7e67f860383010d15d12a842b53e1_amadey_rhadamanthys_smoke-loader.exe
      "C:\Users\Admin\AppData\Local\Temp\2025-03-15_20f7e67f860383010d15d12a842b53e1_amadey_rhadamanthys_smoke-loader.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:112
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\439f5105-bd5b-4506-bfc3-a8e325466b9c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        • System Location Discovery: System Language Discovery
        PID:3808
      • C:\Users\Admin\AppData\Local\Temp\2025-03-15_20f7e67f860383010d15d12a842b53e1_amadey_rhadamanthys_smoke-loader.exe
        "C:\Users\Admin\AppData\Local\Temp\2025-03-15_20f7e67f860383010d15d12a842b53e1_amadey_rhadamanthys_smoke-loader.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • System Location Discovery: System Language Discovery
        • Suspicious use of WriteProcessMemory
        PID:5892
        • C:\Users\Admin\AppData\Local\Temp\2025-03-15_20f7e67f860383010d15d12a842b53e1_amadey_rhadamanthys_smoke-loader.exe
          "C:\Users\Admin\AppData\Local\Temp\2025-03-15_20f7e67f860383010d15d12a842b53e1_amadey_rhadamanthys_smoke-loader.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Checks computer location settings
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          PID:4800

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

    c9be626e9715952e9b70f92f912b9787

    SHA1

    aa2e946d9ad9027172d0d321917942b7562d6abe

    SHA256

    c13e8d22800c200915f87f71c31185053e4e60ca25de2e41e160e09cd2d815d4

    SHA512

    7581b7c593785380e9db3ae760af85c1a889f607a3cd2aa5a2695a0e5a0fe8ee751578e88f7d8c997faeda804e2fc2655d859bee2832eace526ed4379edaa3f5

  • 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

    c0da3bd4ea021620b2162c66de7047a3

    SHA1

    c94ab95916115889edbe5517eb6dcc616d772459

    SHA256

    557b4f2d4589f0ddc08864d062c327d29970aac6101fa2a699096680490afd23

    SHA512

    0cb787f494cfc97096ef4558ef3587e31e9b9eb92c09d5eea4f2641f17c3994880f1513806dd300a3ddcd52295a3653b1656135ec23035f1a5b57ba935b0bda0

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

    Filesize

    170B

    MD5

    dbaf6125dae85abe1feb59fadc1e79ad

    SHA1

    12a3263b96735657f83189506cc9e6a33de8f7c1

    SHA256

    b93a2cdf48d63063012aa9e8e34c9f2a19ce9f7ee549c2517fa044a80684df6f

    SHA512

    d5fc935dd441b708416d7f6f9519b6a20d2083a430e66149cecf950a96e2058744bab4d9ad50021971e08cc70b72f607f79f795678228e75d3365e7a15e6acf9

  • C:\Users\Admin\AppData\Local\16ccda26-ad2f-418f-8440-aad5db13f0e6\build3.exe

    Filesize

    437B

    MD5

    6910426a598bc0b07dd6ca7c2faf5c22

    SHA1

    4304d65a08652b167453997e1464cc6ef034be23

    SHA256

    ebfef207462c29030b8a06068c8cbf1cfeae1304813b9cdbfa2d705b314bf692

    SHA512

    5e96757fa5daa336968aa07d5fe5525040a081a547dd6bad55bed4539ad76b3f96aabd38f461efdafa4a427963b2a3187cc40dfa60c74e6c6ddf738176381952

  • C:\Users\Admin\AppData\Local\439f5105-bd5b-4506-bfc3-a8e325466b9c\2025-03-15_20f7e67f860383010d15d12a842b53e1_amadey_rhadamanthys_smoke-loader.exe

    Filesize

    735KB

    MD5

    20f7e67f860383010d15d12a842b53e1

    SHA1

    9d5f6ea96520f13394999d11ddbc0c486f13c824

    SHA256

    eb6a892cf3e87999e9c01c35d082c1308a8744b16aa1b5403fc40cc63eb0f02f

    SHA512

    3b0dead54a6966b93892915ee4e10695a0a07b94745b18df982ae784cbf1d8d6b4b6de9c031e59cfdde941135eec823c54b5caf24adf7a7a9d9d4c93e90460e9

  • C:\Users\Admin\AppData\Local\bowsakkdestx.txt

    Filesize

    449B

    MD5

    caa078f0348cda98328127c142e3bfed

    SHA1

    e38274d642c806a3affcca8f7e37b61f591c47e6

    SHA256

    91faeb982f34313750a83d74c5464abe4e01357d1a7ea4253973509bc0e9d219

    SHA512

    2e6a5c482b5226079c6b4bd9a706537c372a3b43962f64be6bdd281e3217f963316ef0eba38164890bdf14af6558eb26605320487f0a0c841be9bb813c2ee5d6

  • memory/112-20-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/112-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/112-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/112-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/112-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/628-2-0x0000000002330000-0x000000000244B000-memory.dmp

    Filesize

    1.1MB

  • memory/628-1-0x0000000002290000-0x000000000232E000-memory.dmp

    Filesize

    632KB

  • memory/4800-33-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-55-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-26-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-49-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-72-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-71-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-66-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-67-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-70-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4800-69-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5892-25-0x0000000000400000-0x00000000004FA000-memory.dmp

    Filesize

    1000KB

  • memory/5892-21-0x0000000000400000-0x00000000004FA000-memory.dmp

    Filesize

    1000KB