Malicious PDF — malware analysis report

Static analysis result for SHA-256 17231323d5995322…

MALICIOUS

PDF

54.1 KB Created: 2020-08-09 13:32:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 68f38d410046938a10dd3800029fa233 SHA-1: 3461c63f10c0f8e85e869b549a294704ed119707 SHA-256: 17231323d599532225cd2afbe97054139be6ea2d30addc3b2e2db8ca5f573ca6
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to appear as legitimate document downloads, but ultimately redirects to a malicious redirector. The primary malicious URL identified is https://ttraff.ru/pify?keyword=secuelas+de+asfixia+perinatal+pdf, which is flagged as a known malicious redirector. The document body, though heavily obfuscated, contains embedded URLs that are part of this link farm.

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=secuelas+de+asfixia+perinatal+pdf In PDF document text
    • http://files.norwaygenealogybyjeanmarthaler.com/uploads/1/3/0/8/130814492/popixidadusi_fufeboxizinur.pdfIn PDF document text
    • http://wudapajuz.berthaleal.com/uploads/1/3/0/8/130873995/8722560.pdfIn PDF document text
    • http://files.freedomvalleyfarm.com/uploads/1/3/0/7/130775629/5c2f88.pdfIn PDF document text
    • http://files.teamgodent.com/uploads/1/3/2/7/132740606/wisez.pdfIn PDF document text
    • http://files.funkymonkeystore.co.uk/uploads/1/3/1/1/131164350/badepemefi_sotezinujuk.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/1/0428/8145/0147/files/hello_my_baby_hello_my_honey_lyrics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4154/4600/files/toefl_sentence_structure_test.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5050/8181/files/great_god_of_wonders_sheet_music.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4666/5382/files/witonuze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4541/9165/files/pafamesatimafuwefuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3477/9553/files/fajoduwajegalugesuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9911/2095/files/gigutegurotomuwenoviz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8607/8369/files/26553496088.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9885/7891/files/craftsman_snowblower_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1227/5870/files/lukozogodalusemez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3407/5558/files/3_2020.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_off0000932c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x932C 5320 bytes
SHA-256: 8794d300be52641a4b3b10b37e9d667f187e6ea89b3ffd7f167bad45f6f8f9bc
font_01_sfnt_off0000a55d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA55D 11180 bytes
SHA-256: 567a20e1e26cd9e62aa1bc31947b1c069dfc72580707579e8e930238968ff8dc

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