Malicious PDF — malware analysis report

Static analysis result for SHA-256 9185a5d676177162…

MALICIOUS

PDF

37.4 KB Created: 2020-08-05 07:22:40 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 7ac17abf46e0f3f024d9a4509e28b60b SHA-1: cb2742d8f1204315e73f81dcdd7965a9143ff347 SHA-256: 9185a5d67617716274f6b6a9f288481df6c83d680dcdd8800b1cd572afb95d8c
194 Risk Score

Malware Insights

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

This PDF document contains multiple links, including one to a known malicious redirector, ttraff.cc. The document body and embedded links suggest a phishing or scam attempt, using SEO-like keywords to lure victims. The ML classifier strongly indicates maliciousness, and the presence of numerous external links points to a link farm or redirection strategy to obscure the final malicious destination.

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.cc/pify?keyword=sanitary+pipe+fittings+pdf In PDF document text
    • http://files.paulsugarfoundation.com/uploads/1/3/1/3/131380177/8386646.pdfIn PDF document text
    • http://files.lightbringerlabs.com/uploads/1/3/1/3/131398258/ganutuvapom.pdfIn PDF document text
    • http://files.divinesoulcenter.com/uploads/1/3/1/6/131608037/rinazekivepa.pdfIn PDF document text
    • http://files.amyjlane-instructional.com/uploads/1/3/0/7/130775840/sipazejirepilexubu.pdfIn PDF document text
    • http://files.alphachichico.org/uploads/1/3/0/7/130775953/nakuda-vuwoxola-paxeminafijod.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/1/0433/0687/7080/files/27055139941.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/9378/4728/files/nirusenetunilazefewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0699/9203/files/tenuzixaduk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/84434726664.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3591/8489/files/81987374090.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2732/5351/files/80122545769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5054/0964/files/45351293440.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3732/6502/files/starters_cambridge_test_2020_pdf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9969/2958/files/formal_business_letter_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6604/1244/files/beguzeropusuwabemiwij.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0962/2687/files/youtube_to_aac.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0456/7450/files/bookkeeping_accounting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5165/5076/files/kixovopadel.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_off00005393.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5393 5384 bytes
SHA-256: 2e23c976aade809db197f4db20ee9ee0f236d3af29fb828bdddb42812829fc1c
font_01_sfnt_off000065f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65F8 10136 bytes
SHA-256: 62d79f4b6190132f143738d717e779f2fc6f304a84760cd979b967505a45bea7

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