Malicious PDF — malware analysis report

Static analysis result for SHA-256 cdc7de9db31146fc…

MALICIOUS

PDF

50.6 KB Created: 2021-04-10 12:40:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: d2245006cefca26cf4a437830f685569 SHA-1: 7015699a65ab2f4db1cc411a4ee183eb994cc496 SHA-256: cdc7de9db31146fcce9c57b340ca03826b708370ad1511b92531fcd9ccf6547a
184 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6464

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://golowaki.ru/strik?utm_term=golf+buddy+voice+2+manual+pdf PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4481064/normal_5fdf38d07e46b.pdfIn PDF document text
    • https://vakevugulipew.weebly.com/uploads/1/3/4/5/134507067/2621439.pdfIn PDF document text
    • https://cdn.sqhk.co/xuvisisitinu/hz7ehag/software_update_failed_iphone_6s.pdfIn PDF document text
    • https://cdn.sqhk.co/nolovojawek/fhb1eIV/free_fidget_spinner_spinner.pdfIn PDF document text
    • https://cdn.sqhk.co/dizoketa/ksLhdha/bengali_movie_song_sathi.pdfIn PDF document text
    • https://gesogakit.weebly.com/uploads/1/3/4/5/134581759/buwefavugalosup_vagigiwonor.pdfIn PDF document text
    • https://cdn.sqhk.co/rizakumer/jdygjOn/bidufomekukikozudukaneti.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495059/normal_605556aeaa5c7.pdfIn PDF document text
    • https://cdn.sqhk.co/duwefetufe/J4ieKhg/cnbc_market_news_reporters.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371800/normal_601884c31b29f.pdfIn PDF document text
    • https://cdn.sqhk.co/nivopekodi/hd2xjca/crafting_guide_osrs_free_to_play.pdfIn PDF document text
    • https://cdn.sqhk.co/zesozote/ehh6jam/fellow_eternal_clash.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415544/normal_600d5054f1672.pdfIn PDF document text
    • https://ruxunomitebapat.weebly.com/uploads/1/3/1/6/131606858/574c5763.pdfIn PDF document text
    • https://tibomomaludo.weebly.com/uploads/1/3/0/9/130969572/3797797.pdfIn PDF document text
    • https://cdn.sqhk.co/jisaside/79hLOic/95933129502.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421048/normal_6052f6fc3eb08.pdfIn PDF document text
    • https://cdn.sqhk.co/pemenodisoda/jfhgOjd/mini_cooper_dash_camera.pdfIn PDF document text
    • https://nimifitirujaga.weebly.com/uploads/1/3/4/6/134693460/7006421.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7b931a96-3c0f-4abc-9549-feb429529bdf/27022162740.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/298dcb1f-2913-464d-9507-b2f2e3eb496e/nofixopobevilatamabim.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b88f2a30-3d12-404d-bfc4-f0d4e69dbefc/python_for_loop_continue_break.pdfIn PDF document text
    • https://21e323bd-7fdd-46e9-a6c7-4880e76d7610.filesusr.com/ugd/0a51c1_27e700e8131f490384e9cf403eb83e31.pdf?index=trueIn PDF document text
    • https://cee4a208-09ac-40e0-983f-4c2cc776acbe.filesusr.com/ugd/5ed537_e130458dbed04b27bf77fec795d0e5f0.pdf?index=trueIn PDF document text
    • https://736f3f86-ac4a-4d06-be6b-3320275ea8ee.filesusr.com/ugd/cd27d0_2816bff4e26445419728f7b17e6a1365.pdf?index=trueIn PDF document text
    • https://2065f6f1-29fb-48ac-a230-4f4ab2d4b746.filesusr.com/ugd/b62953_a2f97135ab074ae78259c23aa48faecc.pdf?index=trueIn PDF document text

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