Malicious PDF — malware analysis report

Static analysis result for SHA-256 8612f6bb6d171e8a…

MALICIOUS

PDF

45.2 KB Created: 2020-08-02 05:07:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 599999519e8a955c418aac87846544b9 SHA-1: 343e3596668b13e69acf7934dd62834f5e3b2a1a SHA-256: 8612f6bb6d171e8a70f1db8e6f23946adca021da49e6ecf538771087723531bc
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links designed to appear as legitimate educational resources, but they actually lead to a redirector infrastructure. The primary redirector URL, 'https://ttraff.ru/pify?keyword=university+calculus+3rd+edition+pdf', is flagged as malicious. This suggests a phishing or scam campaign aiming to direct users to potentially harmful content or further malicious sites.

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=university+calculus+3rd+edition+pdf In PDF document text
    • http://files.laverdasthoughtsandmemories.org/uploads/1/3/0/7/130775837/liwawo.pdfIn PDF document text
    • http://files.plymouthcantoncivitans.com/uploads/1/3/1/4/131408899/revugebezevomatiluf.pdfIn PDF document text
    • http://files.nanoteacher.org/uploads/1/3/2/6/132695476/babudaladojevafi.pdfIn PDF document text
    • http://files.jamiehillman.net/uploads/1/3/2/6/132681767/5389850.pdfIn PDF document text
    • http://files.kingofglorytabernacle.org/uploads/1/3/1/6/131606056/3506055.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/1/0428/5746/3971/files/27674151968.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2384/2978/files/wawipadisitulijaxujoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2806/2103/files/6014087622.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5144/1563/files/laropupidevubabafop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/bopeberovejaxurid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3019/2039/files/87062594468.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3741/6869/files/10246672475.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5624/2581/files/justified_season_4_torrent.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6335/3244/files/divizosiwisofifefamuma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2785/5517/files/depoderizukuvuzepukoxa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/pajovi.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_off00006fd2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD2 5464 bytes
SHA-256: 278488263b57fcb0e9142dac32b0c99ab42f4cb78d4df73204597b85d12befec
font_01_sfnt_off0000828e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x828E 10356 bytes
SHA-256: c4645e482efcfc606c5ba52396fbc479e29a1544051ccfad62b06a19479f1252

Open this report in the interactive analyzer, or submit your own file for analysis.