Malicious PDF — malware analysis report

Static analysis result for SHA-256 9af8017d43fcd1f7…

MALICIOUS

PDF

74.8 KB Created: 2021-01-13 23:39:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: be756e634fdbc0aa3329f29680f1c7ed SHA-1: 438dd03b47d2e7f960eb17b80863593f7064f949 SHA-256: 9af8017d43fcd1f70259a2612274ecf30512aefe24be1a0eb0edc331505fd0b2
194 Risk Score

Malware Insights

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

The PDF contains heuristics indicating it links to known malicious redirector infrastructure, specifically identified as an SEO redirector for free downloads. The embedded URL 'https://traffmen.ru/123?utm_term=ti+84+plus+programs+physics' is flagged as malicious. This suggests the document is designed to trick users into visiting a malicious site, likely for phishing or to download further malware.

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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://traffmen.ru/123?utm_term=ti+84+plus+programs+physics In PDF document text
    • https://static.s123-cdn-static.com/uploads/4470821/normal_5ff9ebb3780e3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392647/normal_5ff65dbdc9961.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393220/normal_5ffbd3b01bf2d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449627/normal_5fab14d6644f5.pdfIn PDF document text
    • https://nunipotewisi.weebly.com/uploads/1/3/4/8/134892443/gajines.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4490736/normal_5faac3a9bfa4f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4404313/normal_5fc695fb36c8c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421472/normal_5f9b9258bc804.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/falevi/29693581825.pdfIn PDF document text
    • https://s3.amazonaws.com/bededuxotulapil/beautiful_love_birds_images_free.pdfIn PDF document text
    • https://s3.amazonaws.com/wovigebi/airbus_a319_united_seating.pdfIn PDF document text
    • https://s3.amazonaws.com/lejivugeleguwod/21381112697.pdfIn PDF document text
    • https://s3.amazonaws.com/gujutavevive/podejujeze.pdfIn PDF document text
    • https://s3.amazonaws.com/piwanisaj/isabella_bird_community_school_ratings.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_off0000e553.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE553 5680 bytes
SHA-256: 636409f127d581d52749121c2af4258824aacd788d5ab45eda50d0034f9099da
font_01_sfnt_off0000f88a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF88A 10912 bytes
SHA-256: c551c4ca220c251430b447ec6b8e902bb62e0469aeadc401e0ecff1a16e43e73