Malicious PDF — malware analysis report

Static analysis result for SHA-256 1609817a5c5e5b13…

MALICIOUS

PDF

50.3 KB Created: 2020-07-30 17:50:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b76079d1d8bebede5cf55a85c4540b58 SHA-1: cd0f7737ee3808822a9b40c82bfbc651fc8e00bb SHA-256: 1609817a5c5e5b13293bd422aa03daca3ee0487db6a13acf83c325093b4ef74b
194 Risk Score

Malware Insights

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

The PDF contains multiple links to redirector infrastructure, specifically `https://ttraff.cc/pify?keyword=symmetry+math+pdf`, which is flagged as malicious. This indicates a phishing or scam attempt to redirect users to potentially harmful content. The presence of numerous PDF links suggests an attempt to generate traffic or distribute further malicious content.

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=symmetry+math+pdf In PDF document text
    • http://files.outandaboutwithmskala.com/uploads/1/3/2/6/132681937/7750820.pdfIn PDF document text
    • http://files.victoriapowersstudioten.com/uploads/1/3/1/6/131636819/d7924c.pdfIn PDF document text
    • http://files.warringtondrainservices.com/uploads/1/3/1/3/131379590/7abfa818.pdfIn PDF document text
    • http://files.shieldoffaithaz.org/uploads/1/3/1/3/131398252/xemefaf_nibob_juzikodezivabi.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/1/0438/2598/7741/files/talarilevujinub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7272/4897/files/21674221381.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5422/7871/files/livopobut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9309/8660/files/jutomerukurexopolojegese.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1394/7041/files/tilawulavejuda.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7870/3511/files/15669278484.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2788/9302/files/50643393096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8914/9608/files/gajedepe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6803/0102/files/lorudadizoj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7803/3303/files/50601015081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/nujogopuju.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 4

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_off0000892d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x892D 4800 bytes
SHA-256: 792ebaf81cedc056e19e96c89067ba7a9265fb607f95c3b9e4f483077fd8c804
font_01_sfnt_off00009978.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9978 10320 bytes
SHA-256: 70b43f52553416378b990ebf883a88b99c3f4fbc7f7f22f672e5535c500a4906

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