Malicious PDF — malware analysis report

Static analysis result for SHA-256 ce9a12cc96e1e008…

MALICIOUS

PDF

33.2 KB Created: 2020-08-25 08:26:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b4ddbfa34993f22be2f38cfe3026010f SHA-1: 6d0c1cba1a693d57978031a7d11f02ffd29900d7 SHA-256: ce9a12cc96e1e008598edeabf610ddba9f51c47a25a80955b8ef32aa65f0940f
194 Risk Score

Malware Insights

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

The PDF contains a deceptive title 'Icsi benevolent fund form' and embeds a large number of external links. One of these links, 'https://ttraff.ru/pify?keyword=icsi+benevolent+fund+form', is identified as a malicious redirector. The presence of a link farm and the ML classifier's high confidence score indicate a malicious intent to redirect users to harmful sites.

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.ru/pify?keyword=icsi+benevolent+fund+form In PDF document text
    • http://jirak.pensionplanningsolutions.com/uploads/1/3/1/4/131409508/8e77eb348.pdfIn PDF document text
    • http://zuvibi.seahawkstrackandfieldacademy.com/uploads/1/3/2/6/132680869/0ea619.pdfIn PDF document text
    • http://vosiboru.maidans.org/uploads/1/3/1/6/131636908/soledu-nezezegexata-jikabuje.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/1/0440/2351/3238/files/magazine_advertisement_design_templates.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9330/3204/files/51920387135.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5452/8677/files/generation_zero_trainer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6878/3782/files/bisarogideramudegufosuxad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9493/3665/files/61735904320.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5311/2735/files/buffalo_wild_wings_printable_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6241/9863/files/10121107590.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5085/2762/files/isuzu_npr_labor_guide.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1991/0813/files/97630576010.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5652/9565/files/self_defense_mechanism.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6413/9674/files/logo_maker_free_apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7946/7162/files/asp_net_websocket.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_off000046b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x46B7 5092 bytes
SHA-256: f7f4eeedd94e61f38aab2c9a7509ce76112132cf19a2e9eeaa39aaf180366ec6
font_01_sfnt_off000057e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x57E5 9452 bytes
SHA-256: 9372c54cb5c9dae2d0b1653063386e145e4eae06fa313971b63a37b364c428f0

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