Malicious PDF — malware analysis report

Static analysis result for SHA-256 106cf73bfaf9a116…

MALICIOUS

PDF

41.3 KB Created: 2020-08-28 09:06:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 4e27cfcffd8a566a7517c26d0ca8a942 SHA-1: c3d96fddbed6e5d7eb5cded2df05662c2bba1d50 SHA-256: 106cf73bfaf9a116ba907efd19e4f5d402b6c93a871fb23954865c2a9878f87d
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many of which point to a redirector service that is flagged as malicious. The document body and embedded link information suggest a lure for game downloads, specifically 'divinity original sin multiplayer 4 player'. The primary malicious URL identified is https://ttraff.ru/pify?keyword=divinity+original+sin+multiplayer+4+player, which is likely used to distribute further malware or phishing content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

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=divinity+original+sin+multiplayer+4+player In PDF document text
    • http://pivuxaw.damianduguid.com/uploads/1/3/1/3/131398140/3102564.pdfIn PDF document text
    • http://widev.emilylwebb.com/uploads/1/3/0/7/130738732/vijatelifixefi.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/1/0437/7152/7319/files/watatapawarus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7383/0040/files/algebra_and_trigonometry_stewart.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9318/1087/files/senujumax.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3605/5454/files/38967702107.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6341/8784/files/fifegiso.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8925/5847/files/bookishly_ever_after.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0227/3703/files/backup_android_rom_to_computer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8110/5562/files/equivalent_expressions_worksheet_7th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8509/3272/files/watch_dogs_2_mods_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9567/8359/files/67394793953.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 2

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_off00006442.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6442 5388 bytes
SHA-256: 4ed811a8b5a21a323175fa85cec75d712e2a9bed4b2c0b280c99dea503fb71de
font_01_sfnt_off00007697.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7697 9920 bytes
SHA-256: 4fe875ae19a97f7fb31c1e29e8940dfb2c5eb3277d9a079947934eacdf186162

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