Malicious PDF — malware analysis report

Static analysis result for SHA-256 862effe700d06baf…

MALICIOUS

PDF

41.3 KB Created: 2020-08-14 04:15:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 1d6a5ef1582796858a8e439778bc69d1 SHA-1: cd471ad2879075bbfe45c8e55a63d8696039f036 SHA-256: 862effe700d06baf52b93b0384d160146389ffe8563f1a4af8d5807412a2acdd
194 Risk Score

Malware Insights

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

The PDF contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary redirector URL, 'https://ttraff.ru/pify?keyword=lagu+katy+perry+birthday+remix', is used in conjunction with a link farm heuristic, suggesting an attempt to drive traffic to malicious sites. The ML classifier also strongly indicated maliciousness. While no scripts were explicitly extracted, the PDF structure and embedded links point towards a phishing or malware distribution 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=lagu+katy+perry+birthday+remix In PDF document text
    • http://tonix.mendoviewwindowcleaning.com/uploads/1/3/2/6/132695969/17be6dd2.pdfIn PDF document text
    • http://files.stbrigidsschool.net/uploads/1/3/1/8/131872087/fufosum-muvepuvid-pobadesitemij.pdfIn PDF document text
    • http://files.nlg-pros.com/uploads/1/3/0/9/130969910/katixiratowapo.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/1/0432/2823/3887/files/88310682282.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8030/2240/files/vumabomar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4241/4487/files/automotive_technology_4th_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3518/7605/files/essential_calculus.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7173/3917/files/35112564349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3157/6226/files/canoe_software.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3971/1644/files/bucharest_street_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5598/9404/files/90701592803.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5698/0377/files/tegifake.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9613/8137/files/jixejugoraveposaxabum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1392/3228/files/nicaragua_vs_us_case.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6150/1336/files/iceomatic_service_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1324/2005/files/9029428954.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 8

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_off000063dd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63DD 5476 bytes
SHA-256: 11eb5ca75946a5eab3637e87c03e66a8cb448f674ba437fc0ae71c80b71f935d
font_01_sfnt_off0000765f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765F 9924 bytes
SHA-256: 9366dff57f5b2f34a4534afb410a7f863b21de85670fc992a8211a28c0c640f0

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