Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7dfd6ddc9c72867…

MALICIOUS

PDF

49.7 KB Created: 2020-08-18 13:02:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76cc01967fa1fe74a2181cf62df26532 SHA-1: 98ff894e569650134c08eca7c240a0a0dbbd2416 SHA-256: b7dfd6ddc9c72867b191483cb42fa967190948dc79e7ccea430e2c0c92810ad7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains numerous embedded links, a common tactic for SEO spam and phishing. One critical heuristic identified a link to a known malicious redirector at 'https://ttraff.ru/pify?keyword=divinity+original+sin+ps4+strategy+guide'. The document body, though heavily obfuscated, also contains this URL, suggesting the primary intent is to redirect users to malicious content under the guise of providing a strategy guide.

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+ps4+strategy+guide In PDF document text
    • http://ruwigox.hendersonelectricmotor.com/uploads/1/3/1/3/131383664/761182e89466ab.pdfIn PDF document text
    • http://files.spectrabuildingdesigners.com/uploads/1/3/1/4/131453111/f1c59375df7b8.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/1/0437/4121/6917/files/nevada_food_handlers_card_test_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4997/4946/files/keurig_elite_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7978/5886/files/1188024465.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7378/8321/files/vopamedixuxejexexovexi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7035/6632/files/papat.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0900/5978/files/aitsl_standards_proficient.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6705/6028/files/feroxuzaratu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8734/7364/files/fezafa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8130/2167/files/66694811529.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2742/3654/files/lemupukoxumi.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_off000085ec.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85EC 5376 bytes
SHA-256: a4979a902edf11fe8d0bd4f8d776a3fd72b30c2115905cf9a3a23aab13f782b4
font_01_sfnt_off00009858.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9858 9852 bytes
SHA-256: a71aee351ca15bd57c0b5ef4f51bc6201296091e37b397441dd8b10cdf75d9a0

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