Malicious PDF — malware analysis report

Static analysis result for SHA-256 3786d03ff49c5efa…

MALICIOUS

PDF

43.5 KB Created: 2020-08-11 20:58:59 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2ab6ce38bd8805bdb8e74b30d2e92ddd SHA-1: 0c35bc4c838f762718299eb876097e68ac95577e SHA-256: 3786d03ff49c5efa3dcba10132781189ea6c996aa63c9bd175b085b065b284e7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains numerous embedded links, with one specifically pointing to a known malicious redirector. The heuristic 'PDF_MALICIOUS_REDIRECTOR_LINK' and the ML classifier strongly indicate malicious intent. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=aluminium+alloys+and+their+properties+pdf', suggesting a lure to a malicious site disguised as a document about aluminium alloys. No scripts were extracted from this sample.

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=aluminium+alloys+and+their+properties+pdf In PDF document text
    • http://files.thegoldengoosecarvery.com/uploads/1/3/0/9/130969206/4301405.pdfIn PDF document text
    • http://files.nirvanapilkington.com/uploads/1/3/0/8/130814121/musigulepita_miparidu_tadiven.pdfIn PDF document text
    • http://nisez.carolinesteiermcclintic.com/uploads/1/3/1/3/131379730/cdd3bfc.pdfIn PDF document text
    • http://files.dalegarellphotography.com/uploads/1/3/0/9/130969724/871e58.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/1/0432/9878/3382/files/53708793235.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0043/4586/files/panera_catering_boxed_lunch_menu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0105/2321/files/piwuwevotuzolola.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3863/8241/files/kegegoludukopixozepiferab.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2672/7580/files/dictionary_of_psychology.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4288/8097/files/beowulf_rm_liuzza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0152/0029/files/kyocera_flip_phone_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9763/7535/files/43655384448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/64136275826.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pegegezanonipilupe.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 7

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_off00006c8f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6C8F 5372 bytes
SHA-256: 7ac3227a361509e246d0194893fde0ff69b7dcc46e52583383e3d315f5ee59a7
font_01_sfnt_off00007eab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7EAB 10068 bytes
SHA-256: 39fae644c3db9a3e46ebecb11beeb2ff2aecf106d1a8f74ab349953ca130ab40

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