Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5901081a19fc829…

MALICIOUS

PDF

36.4 KB Created: 2020-08-05 11:09:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 8333350c7121481a2391f35389c91836 SHA-1: 53045f3a428f5e158cdfca16490d781d998dbe4b SHA-256: c5901081a19fc829aea5ce59301d6c50e39ea8d26b4e3ced813e4b4115455581
194 Risk Score

Malware Insights

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

The PDF contains a mass of external links, a technique often used to create SEO spam or to redirect users to malicious sites. One of the embedded URLs, 'https://ttraff.com/pify?keyword=battery+management+system+plett+pdf', is flagged as a known malicious redirector. The document body contains garbled text but includes the same suspicious URL, reinforcing the redirection attempt. No scripts were extracted, but the primary attack pattern involves leveraging external links for malicious purposes.

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=battery+management+system+plett+pdf In PDF document text
    • http://files.candicelindsay.com/uploads/1/3/1/4/131407980/df3119.pdfIn PDF document text
    • http://files.christinafriedle.com/uploads/1/3/1/6/131636987/dinunolup.pdfIn PDF document text
    • http://files.gaventrinidadtheatre.com/uploads/1/3/2/6/132681294/nozunupaluzo.pdfIn PDF document text
    • http://files.mizabbyharris.com/uploads/1/3/2/8/132815054/xuweni_wapokipigi.pdfIn PDF document text
    • http://files.apentertainment607.com/uploads/1/3/0/8/130873718/kuzotukuwiku.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/1/0428/7250/4483/files/32963350051.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4517/4939/files/fakuduvubejifu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5467/7662/files/fumari.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2782/2752/files/b_p_lathi_signals_and_systems.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pegegezanonipilupe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4717/4822/files/58010603619.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4143/2487/files/o_investidor_inteligente_autor_benjamin_graham.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5466/0758/files/15162851450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6916/8021/files/mocha_test_tutorial.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3519/7602/files/4158284719.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7417/4632/files/67073575701.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6633/6167/files/74719796086.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_off00004f5a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4F5A 5512 bytes
SHA-256: b5970118026df94688eb2321a7d3f3e37bc3aa5fc182e065eddfd74b2c99aca9
font_01_sfnt_off00006210.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6210 10192 bytes
SHA-256: 1de310687345ca3fa0a8f659444c69ac09900371955228d9b752ec5f2b6ba2eb

Open this report in the interactive analyzer, or submit your own file for analysis.