Malicious PDF — malware analysis report

Static analysis result for SHA-256 12e02ec268137794…

MALICIOUS

PDF

56.3 KB Created: 2020-08-28 03:57:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: fc1bf7a5b17a4fb188bdafb1e14b370e SHA-1: 0613dd8753dfe30771cd078b24e1964e8d94eb9c SHA-256: 12e02ec268137794ff81b449d134560e1bdbc73e00464e170fe295d02ff8a1f8
194 Risk Score

Malware Insights

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

This PDF document contains numerous links, many of which point to a redirector infrastructure known for hosting malicious content. The primary lure appears to be an "answer key" for educational material, which redirects to a malicious URL. The ML classifier strongly indicates maliciousness, and the embedded links suggest a phishing or malware distribution attempt.

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.ru/pify?keyword=saxon+math+8%252F7+with+pre+algebra+answer+key+pdf In PDF document text
    • http://demupez.ryanmullaney.com/uploads/1/3/0/8/130814070/3454626.pdfIn PDF document text
    • http://files.swsmith.com/uploads/1/3/1/8/131856333/mizesewup.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0439/7475/4462/files/mogexexa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7643/5621/files/vunosobibomo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0671/3253/files/539367056.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/4819/8556/files/gawozoremikexezuxabanaf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6019/1637/files/45080070500.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3373/8911/files/unbreakable_full_movie_hdpopcorns.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7650/9080/files/ffxiv_you_can_sense_something_swimming_below.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0460/1502/1223/files/14758365787.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 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00008ba7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BA7 6124 bytes
SHA-256: 8d2be12c5a0e95820f308063c3189eba3502fcb3328836e130c06ca29483d9c4
font_01_sfnt_off0000a060.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA060 11032 bytes
SHA-256: 32ea26d776c25cee91ba4e23a007c31608e2d8bc6af25e9febda8d6c6419786a
font_02_sfnt_off0000c61f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC61F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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