Malicious PDF — malware analysis report

Static analysis result for SHA-256 12caefea6225c29e…

MALICIOUS

PDF

40.8 KB Created: 2020-08-24 09:56:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a3f651a08bd01dd2d6ab175cf55be215 SHA-1: 211a7de64610ed64a14f89dcf387ffe676a56e1f SHA-256: 12caefea6225c29e12e5349efaf9f98b436c421413247153c74ddf6dc53baddb
194 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to a redirector service known for malicious activity. The primary redirector URL is 'https://ttraff.ru/pify?keyword=dirty+minded+riddles+with+answer', which is likely used to obscure the final malicious destination. The document body, though heavily obfuscated, also contains this URL, suggesting a phishing or scam lure.

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=dirty+minded+riddles+with+answer In PDF document text
    • http://gozidego.wyomingparkumc.com/uploads/1/3/1/3/131381241/d3f6ba6286a.pdfIn PDF document text
    • http://povifi.manubio.com/uploads/1/3/0/9/130969336/jimabawi_mimisexexo.pdfIn PDF document text
    • http://loguwig.christinabarsi.net/uploads/1/3/0/7/130738721/64e480a0d23d3.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/1/0434/2012/3285/files/lebagun.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5206/3125/files/iowa_state_colors.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6836/6760/files/android_one_games.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2263/9527/files/29530059014.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3318/2886/files/agata_bielik_robson.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0128/2719/files/sudisiwo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3526/3138/files/vijifagagekinosewo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8223/4521/files/john_lennon_beautiful_boy_lyric.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8368/5274/files/radulirifujas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9094/3901/files/thegodsmustbecrazy_full_movie_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8828/9694/files/2594766568.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4673/0904/files/vexatugelex.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 3

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_off0000605e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x605E 5256 bytes
SHA-256: 06d104a3fb8f74e7a3b6e2de4f7fc1eb05ccffaed99fc0fa6a24ee17d2e08d20
font_01_sfnt_off00007224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7224 11104 bytes
SHA-256: 265cda8a376ac1484f8631014d8e5f792a3c613fd89b1b7a6718ba15296cc335

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