Malicious PDF — malware analysis report

Static analysis result for SHA-256 dfd8107cfd6d8e73…

MALICIOUS

PDF

43.9 KB Created: 2020-08-05 10:19:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aacbee0449d715def2048433ac9379b8 SHA-1: 6b6011e30c118f13d900f4fb2970527862c7b74f SHA-256: dfd8107cfd6d8e73437a7bc3f37382da58414a236d513a9d8b9d0d433966cfd0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector. The document body, though partially corrupted, includes a URL that appears to be part of a lure. The primary malicious URL identified is ttraff.com, which is used in conjunction with a keyword suggesting a search for a PDF. The document also contains a large number of links to Shopify-hosted PDFs, likely an attempt to appear legitimate or to obscure the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • 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.
  • 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.
  • 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://ttraff.com/pify?keyword=topographic+anatomy+of+man+pdf In PDF document text
    • http://files.hscfair.com/uploads/1/3/0/8/130814112/529002ee8ac519.pdfIn PDF document text
    • http://files.amazingmakeupyoulove.com/uploads/1/3/1/6/131606733/8184243.pdfIn PDF document text
    • http://files.gojus.net/uploads/1/3/2/6/132695663/forotid.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
    • https://cdn.shopify.com/s/files/1/0431/5804/4828/files/88794571154.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5857/7046/files/64572977721.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8523/3304/files/nijamiruwatogojirigud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8268/6372/files/kenai_river_fishing_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4927/7845/files/zubemajekawota.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9722/6402/files/kekodapasisefulobapukor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3181/2504/files/nunufejeworogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8405/3669/files/84767383709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4248/7963/files/vinefesutobe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4790/2623/files/16227734524.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6966/1589/files/44109152991.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5495/4656/files/evenesence_lost_in_paradise.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

Related samples 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000617c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x617C 5080 bytes
SHA-256: 44fbbc826718adec33b09f790bd7aea0dc0b3b89bca18df27ea4026700300eb3
font_01_sfnt_off00007291.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7291 9992 bytes
SHA-256: 7a2a281b784610b2ae60d74f5a179db482d1fa7372d29e313b28ee0ecacbb534
font_02_sfnt_off000094a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x94A7 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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