Malicious PDF — malware analysis report

Static analysis result for SHA-256 3edc316374fff0b6…

MALICIOUS

PDF

74.2 KB Created: 2021-02-27 14:58:42 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 3a1a9cd410c5b71a33fd82d20ccf0565 SHA-1: 4f650dd2d95501956631aa6da69d94404c79fe7a SHA-256: 3edc316374fff0b693bff301e3f0b10de7e79eaa5f6f7e2502062a97bbc0d4ec
196 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains heuristics indicating it is part of an SEO link farm and uses an image lure to redirect users to a website. The embedded URL and the PDF's structure suggest a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly indicate malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

Heuristics 6

  • 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.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://resalured.ru/award?keyword=do+you+say+congratulations+at+a+wedding PDF link annotation
    • https://woxamaxepid.weebly.com/uploads/1/3/0/7/130776503/2856607.pdfIn PDF document text
    • https://sozuleku.weebly.com/uploads/1/3/5/9/135962343/fekujor.pdfIn PDF document text
    • http://dalifajebuxog.scienceontheweb.net/bemoza.pdfIn PDF document text
    • https://gemunokixelu.weebly.com/uploads/1/3/6/0/136095878/zatedefexo-pixobufupege-gazuvuwa.pdfIn PDF document text
    • https://lopuvekire.weebly.com/uploads/1/3/0/8/130813144/783000df8761c.pdfIn PDF document text
    • http://nenavukatebofaf.22web.org/kefuwokipemubime.pdfIn PDF document text
    • http://gachihyper.xyz/rv_dinghy_towing_guide_2014jkdz2.pdfIn PDF document text
    • http://mufutekuson.getenjoyment.net/merchant_of_venice_act_4_scene_1_translation.pdfIn PDF document text
    • https://finiruxadaral.weebly.com/uploads/1/3/2/6/132680938/fapixarupuj.pdfIn PDF document text
    • http://return-0.com/sd_tank_war_hack9k047.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://pigutun.myartsonline.com/cbk_100_recipes.pdfIn PDF document text
    • https://s3.amazonaws.com/wikurixobelu/89567046513.pdfIn PDF document text
    • https://s3.amazonaws.com/zopenave/dbms_sqltune._report_tuning_task_no_output.pdfIn PDF document text
    • http://tiwatimab.atwebpages.com/61513672348.pdfIn PDF document text
    • https://s3.amazonaws.com/jiguwuzobozobaz/game_axes_io_apk.pdfIn PDF document text
    • http://japinoxizidunub.myartsonline.com/68590386675.pdfIn PDF document text
    • http://paxafumalinuber.epizy.com/face_shield_3d_model_free_download.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/bengali_font_for_pc.pdfIn PDF document text
    • https://s3.amazonaws.com/rotowan/66886762301.pdfIn PDF document text
    • https://s3.amazonaws.com/zaxefemebidaz/tasupini.pdfIn PDF document text
    • https://s3.amazonaws.com/nowokil/95408615014.pdfIn PDF document text
    • https://s3.amazonaws.com/senodiw/alchemy_game_free.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d81e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD81E 5184 bytes
SHA-256: e695f246f2ed3d1e615c6a447d8eda84cb6a702c6a62b5931dcc19478d6a93b0
font_01_sfnt_off0000e9e3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9E3 10552 bytes
SHA-256: 376b28ed4add35183d338a7c8bc555bc127e1813c2d97fcd69e90a9becb91e32
font_02_sfnt_off00010d33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10D33 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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