Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3aa5cb4c31a087b…

MALICIOUS

PDF

45.7 KB Created: 2020-08-21 20:38:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c060842fffc40c2c291500c8137c03d3 SHA-1: 330cc36b6276c8eb8a04478d7576219eb89eb0a6 SHA-256: f3aa5cb4c31a087b415e001d2ef07b661dc8bef5e794350fce29d86922ebb9e8
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to a redirector service (ttraff.com) that is known to host malicious content. The document body, though heavily obfuscated, contains a reference to the same redirector URL. This suggests the document's primary purpose is to redirect users to malicious sites, likely for phishing or malware distribution.

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=california+notary+acknowledgement+form+word In PDF document text
    • http://files.lydiafellowshipinternational.org/uploads/1/3/1/1/131164310/1fec66a865c.pdfIn PDF document text
    • http://files.refugeeradionetwork.net/uploads/1/3/1/8/131856188/vurajipedifasufukix.pdfIn PDF document text
    • http://vakonow.doublejoutfittersny.com/uploads/1/3/1/6/131606271/2717341.pdfIn PDF document text
    • http://visikap.cysff.net/uploads/1/3/0/7/130740112/befewokebigavuk.pdfIn PDF document text
    • http://files.invisageblinds.com/uploads/1/3/1/3/131381722/zedevusaf-nogerogut-tosakofazojoxid-jaxomilibibus.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/1/0437/9354/7426/files/company_profile_template_photoshop_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9159/1321/files/la_catedral_agustin_barrios_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0168/2843/files/usana_cellsentials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1662/6081/files/gukubepixuxesomisena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9545/7946/files/logic_buried_alive.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8832/1437/files/46328540641.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4218/6150/files/62562816171.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4714/8950/files/41389468888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/35022180152.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8544/7833/files/27823774553.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000656c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x656C 5232 bytes
SHA-256: 94aff03612e186518a54ca4ae290482884adead876e6a5364bbd297fded6a8c0
font_01_sfnt_off0000773b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x773B 10476 bytes
SHA-256: df8b8a19535056c913ffacb5315f50e824128cfafcbc731da0a55caf2dc9cec8
font_02_sfnt_off00009af0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9AF0 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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