Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f1b3402f95cc384…

MALICIOUS

PDF

41.9 KB Created: 2020-08-07 04:48:41 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 16d839df3aaadfd1ecad3aabe5aed360 SHA-1: 0195afa972f29fc80da8ea9efbf5c17173cdb1a8 SHA-256: 7f1b3402f95cc384811d55471c8ac7dbd9af56ff98db68a14d341b58f1a44118
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many of which point to a redirector service (ttraff.com) that is flagged as malicious. The document body, though heavily obfuscated, contains a URL that appears to be the primary lure. The ML classifier strongly indicates maliciousness, and the presence of multiple SEO-optimized PDF links suggests a phishing or scam campaign.

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=messiah+in+judaism+pdf In PDF document text
    • http://files.mariagmaas.com/uploads/1/3/0/7/130775554/5179188.pdfIn PDF document text
    • http://files.hollingertennis.net/uploads/1/3/1/8/131856224/656745.pdfIn PDF document text
    • http://files.adurtreesurgeon.com/uploads/1/3/1/6/131636891/46f5f59eb2cf6f8.pdfIn PDF document text
    • http://files.allendaleinsurance.com/uploads/1/3/1/6/131607163/mupevojizamufowike.pdfIn PDF document text
    • http://files.daintydande.com/uploads/1/3/1/3/131379039/katotigejuw_tilijog.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7745/8334/files/instax_wide_300_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7538/7043/files/bezanudososuvufumiga.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7157/0069/files/96726536720.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7689/5398/files/bokenalega.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6542/5570/files/74381694480.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4979/4213/files/pukijexedoligofen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6742/4412/files/zotob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2907/5880/files/how_to_dump_a_3ds_rom.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2739/8807/files/92905426197.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4235/5865/files/11162931339.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5929/0022/files/pigid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0449/1404/9191/files/today_malayala_manorama_news_paper.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 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000065ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65EE 5236 bytes
SHA-256: ac091e251ba0c7b20f9d2466dd1fa49f30b4b4422e78e276005367c9581c770b
font_01_sfnt_off000077aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77AA 10292 bytes
SHA-256: fc7c23dd2b4dbe2a04b62312efe598caf2451930eb61ddfa520a1d697d826a1f

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