Malicious PDF — malware analysis report

Static analysis result for SHA-256 741ac9353328c495…

MALICIOUS

PDF

43.2 KB Created: 2020-08-10 16:24:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 01e1b290e5031ba9ad68d1f7f0249905 SHA-1: 437b2e68be13fcfd09aaa2426a9715ff23c5d79d SHA-256: 741ac9353328c49550e22fb275f4ce6388eaae724c2139ba95ec507283cfa86d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, including one pointing to a known malicious redirector infrastructure at 'https://ttraff.com/pify?keyword=email+format+sample+pdf'. This suggests the document is designed to lure users to malicious websites, likely for phishing or malware distribution. The presence of numerous links to benign-looking PDFs hosted on Shopify indicates an attempt to disguise the malicious intent within a larger link farm.

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=email+format+sample+pdf In PDF document text
    • http://files.assembly2237.kofc.com/uploads/1/3/1/4/131437711/07286ab05.pdfIn PDF document text
    • http://jupusowe.rtrbaseball.com/uploads/1/3/1/4/131406717/melez.pdfIn PDF document text
    • http://files.rhombusspace.com/uploads/1/3/2/7/132712096/354262.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/1/0432/6011/7160/files/awk_one_liners.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3305/9737/files/formula_para_calcular_porcentaje_de_grasa_corporal_con_pliegues.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4149/6981/files/ditozutasojedinix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5005/7373/files/simple_definition_of_technology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vunumegosuvuvorewufo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/lujodegiduwidixerilaji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6767/0689/files/gallstone_diet_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6797/3538/files/xudugedudiwotexajuwi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7102/0964/files/17204668418.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/1917/7882/files/westlife_fool_again_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3117/4039/files/40145971709.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7228/0981/files/tupimeruvimep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8049/9879/files/45929111758.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4525/6352/files/pumuw.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00006a85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A85 5144 bytes
SHA-256: ce249662dc7af09f1659b64dcabdc15539e90a2692e1c75668ceac03b5507b56
font_01_sfnt_off00007be8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7BE8 10620 bytes
SHA-256: 2f418c78c5d1c417a32a388c8d1873fce4b2b404e720f314ce2591a234d16f74

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