Malicious PDF — malware analysis report

Static analysis result for SHA-256 c70ccca59f54800b…

MALICIOUS

PDF

44.4 KB Created: 2020-08-18 21:51:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1c94eefa6fdb618dfce1a69e66c63bd SHA-1: 5c3ca7f838ff6843da90c17c9036aee235905bb7 SHA-256: c70ccca59f54800b8a258e357de8d909aed6014ed068758755a40bbd75abd43a
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector URL (https://ttraff.com/pify?keyword=dysfunctional+uterine+bleeding+pdf) which is flagged as malicious. The document body and heuristics suggest a lure for free PDF downloads, a common tactic for phishing or malware distribution. No scripts were extracted, but the presence of malicious redirectors and a large number of external links indicates a high likelihood of malicious intent.

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=dysfunctional+uterine+bleeding+pdf In PDF document text
    • http://files.eastsuperiorcc.com/uploads/1/3/1/0/131070009/buwugedurutusi.pdfIn PDF document text
    • http://nixeruj.thehouseug.com/uploads/1/3/1/4/131437044/jorekajunineli-remisupixafuno-tifig.pdfIn PDF document text
    • http://files.maggiewatkinsdoula.com/uploads/1/3/0/8/130813991/376082.pdfIn PDF document text
    • http://wawexuj.tribalsoundhealing.com/uploads/1/3/2/6/132695578/rajefopafejiju.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/1/0434/8153/0534/files/sadut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8819/9328/files/41578719920.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6109/2245/files/95751682674.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5371/1513/files/materi_olimpiade_biologi_sma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6263/2346/files/todapuzerexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2800/4507/files/96952480864.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7249/5524/files/clinical_pharmacy_and_therapeutics_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4669/9165/files/rodajijaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7777/9100/files/beta_binomial_distribution.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7876/9045/files/make_friends_and_influence_others.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/44603331863.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0151/2090/files/35762278962.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_off0000668f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x668F 5564 bytes
SHA-256: f7f94422ed83912d6d6c17304e384914b42a1fccb5687f6cb56e8e19f081f368
font_01_sfnt_off00007984.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7984 13808 bytes
SHA-256: ff4b9ff4641306630c82a22514465f1b0e9e4985e3b2b5c9030dd293939a39b6

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