Malicious PDF — malware analysis report

Static analysis result for SHA-256 670e1efbd84cfe94…

MALICIOUS

PDF

55.8 KB Created: 2021-03-29 02:20:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8634d9468771d15bcdefc11cecd0cbed SHA-1: 535f4d6aa824c05a3c0ef2c30f979009949d40ad SHA-256: 670e1efbd84cfe94c293f77e6457d7b5914e2b20e1b0a57492da5b9883d32629
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan threat. It contains a large number of external links, suggesting it is part of a link farm designed to redirect users to potentially harmful websites. The document body, though heavily obfuscated, contains metadata related to its creation, which does not directly reveal malicious intent but is consistent with a lure document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9457

Heuristics 4

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://lozipotod.ru/award?keyword=advanced+excel+formulas+functions+pdf
    • https://tutupofu.weebly.com/uploads/1/3/0/9/130968911/7bd7c6c11c2ba.pdf
    • https://static.s123-cdn-static.com/uploads/4470405/normal_60087a4786a36.pdf
    • https://cdn.sqhk.co/ponesigis/jarJgjL/69743905710.pdf
    • https://xuwejemeluk.weebly.com/uploads/1/3/4/3/134314543/zijakazig.pdf
    • https://cdn.sqhk.co/visobipibe/gYsvNdw/border_guard_requirements_canada.pdf
    • https://sisivijujejaliw.weebly.com/uploads/1/3/2/7/132741673/8780417.pdf
    • https://jukatuve.weebly.com/uploads/1/3/2/7/132741058/timogogojezefeve.pdf
    • https://nujetamewude.weebly.com/uploads/1/3/4/8/134881912/e0023.pdf
    • https://cdn.sqhk.co/bikegola/T6ehg8U/27462824204.pdf
    • https://xuposebifaperep.weebly.com/uploads/1/3/4/6/134673232/zafewetekavixavugoj.pdf
    • https://cdn.sqhk.co/xuwolupenilu/aJjezPn/iphone_4_cydia_apps_free.pdf
    • https://cdn.sqhk.co/kosadara/fij045Z/prehistoric_shark_game.pdf
    • https://cdn-cms.f-static.net/uploads/4374978/normal_601ad71c6d2a2.pdf
    • https://kawolusasemosu.weebly.com/uploads/1/3/5/3/135397741/juxozoresovujuxepet.pdf
    • https://cdn-cms.f-static.net/uploads/4419451/normal_5fe7e3ba40d9f.pdf
    • https://b6086c54-8ef4-40f3-ba18-bbbb993b339e.filesusr.com/ugd/36e927_37b31707c2f8408880b59130abc97501.pdf?index=true
    • https://s3.amazonaws.com/sepovutapakogaf/biredoxumikimod.pdf
    • https://6b54b0b2-91db-43cc-88c8-bbc4f7e20b37.filesusr.com/ugd/a773aa_a795c2fcabcf48d5a2b09922a319479a.pdf?index=true
    • https://9f5bcc56-a059-4f00-ae85-604acd6a3d2d.filesusr.com/ugd/ac9354_27848a41dfc946a9b4b34a5a0524932d.pdf?index=true
    • https://s3.amazonaws.com/vinejivunitego/ecology_unit_review_worksheet.pdf
    • https://8ed7b8cb-9bae-4def-ad9b-66b28cd11f91.filesusr.com/ugd/740d8c_af5b1945a83c41a28722e183adc0c6c5.pdf?index=true
    • https://5637a596-61ce-4e67-8953-8fd9cb84b940.filesusr.com/ugd/c20ea7_b6505f3aba0e4699ab71f49533ef560c.pdf?index=true

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