Malicious PDF — malware analysis report

Static analysis result for SHA-256 7fefd44df836e793…

MALICIOUS

PDF

74.8 KB Created: 2021-02-04 15:48:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 8961c371fca6c95f0630d6060333b374 SHA-1: 3da62d9b8a1a31f0bc111d6527aad138b0966668 SHA-256: 7fefd44df836e7936e7e4bf65a26b66a060c3e0904d6fcc31b779325c6cf3e6a
136 Risk Score

Malware Insights

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

The PDF contains a lure related to a 'Gw2 weaponsmith guide' and links to an external redirector URL, indicating a phishing attempt. ML and ClamAV heuristics strongly suggest malicious intent, classifying it as a phishing trojan. No scripts were extracted, but the PDF structure and external URL are indicative of a malicious document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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
  • 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://jottigo.ru/123?utm_term=gw2+weaponsmith+guide+0-400 PDF link annotation
    • https://cdn.sqhk.co/likamigid/iinvwhi/50641093143.pdfIn PDF document text
    • https://cdn.sqhk.co/kutogudofi/a2jdhgG/umc_hospital_telephone_number.pdfIn PDF document text
    • http://teren.fun/lab_manual_for_andrews_a_guide_to_it_technical_support_9th_edition87edd.pdfIn PDF document text
    • https://cdn.sqhk.co/jujadiziga/e4Cjc4p/the_wiki_game.pdfIn PDF document text
    • https://cdn.sqhk.co/mujowofapubi/iQhahhs/62493803159.pdfIn PDF document text
    • https://cdn.sqhk.co/xojoreve/1Bajbge/67132438865.pdfIn PDF document text
    • http://sale50.pro/problems_on_concave_and_convex_mirrorswa27p.pdfIn PDF document text
    • https://cdn.sqhk.co/zegofurop/hh9NJoI/city_block_in_spain_spanish.pdfIn PDF document text
    • https://cdn.sqhk.co/xivovido/hjiPjdm/kabofonisejesolegopokor.pdfIn PDF document text
    • https://cdn.sqhk.co/zujumatatub/Roejdhd/pro_slingshot_shooters.pdfIn PDF document text
    • https://cdn.sqhk.co/xeposetuge/e3gcaia/unit_vector_calculator_with_steps.pdfIn PDF document text
    • https://cdn.sqhk.co/rasepotobami/jcifheg/fepixigurobeditimitu.pdfIn PDF document text
    • https://cdn.sqhk.co/lasokixon/RxhyTjf/xamaw.pdfIn PDF document text
    • http://lnstagramverifiedsbadgeform.com/265468032728s8ai.pdfIn PDF document text
    • https://cdn.sqhk.co/fegadosijete/egjzjeL/ritabemos.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/zerepuzuze/xopujo.pdfIn PDF document text
    • https://s3.amazonaws.com/wexukufedepim/answer_to_how_are_you_going.pdfIn PDF document text
    • https://s3.amazonaws.com/lerezazo/wijakusulevedakuvo.pdfIn PDF document text
    • https://s3.amazonaws.com/defujo/adobe_indesign_magazine_template.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e755.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE755 5764 bytes
SHA-256: 2a15acb9ea0dec1c49fce37014e6df57f3d76e6fd12f26608f4505300b42c688
font_01_sfnt_off0000faf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFAF6 10400 bytes
SHA-256: 2790706b92ad890332988d79b552754c8e7a3230e13579f9b86cb21fe18a4509

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