Malicious PDF — malware analysis report

Static analysis result for SHA-256 f129d363bf101c8f…

MALICIOUS

PDF

43.9 KB Created: 2020-08-02 15:18:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf79fce41b91f99a1c4b3a34740bd14b SHA-1: ab3be4e88b481803d94972d08c4440ef820057af SHA-256: f129d363bf101c8f9d963663532b84a9708ac0326a24258e77b48027efe61326
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a heuristic firing for a malicious redirector link, pointing to 'https://ttraff.com/pify?keyword=pc+gamer+pdf'. This URL is likely used to redirect the user to a malicious site. The document body, though heavily obfuscated, contains the same URL and references 'Pc gamer pdf', suggesting a lure to entice clicks. The presence of a large number of external PDF links also indicates a link farm, a common tactic for SEO poisoning or distributing malicious content.

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.com/pify?keyword=pc+gamer+pdf In PDF document text
    • http://files.spinotron.com/uploads/1/3/0/8/130873921/7991352.pdfIn PDF document text
    • http://files.360defensemartialarts.com/uploads/1/3/0/9/130969048/fekurisiwe-jopeni-gukaxuma.pdfIn PDF document text
    • http://files.vinecourtphoto.com/uploads/1/3/1/4/131437308/pudebetetewime.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/1/0428/5025/5014/files/weather_santa_rosa_ca.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6400/8605/files/kidupoguwudumikuvawonegub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95909873105.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9954/6010/files/40440009371.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4746/0768/files/1286931126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9775/9643/files/tufavavilag.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0118/4417/files/pazov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7988/3170/files/82710261094.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6513/0660/files/debidowudixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6799/8359/files/77427889549.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5167/7856/files/faxapijepalem.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5035/9194/files/suzabodekusogawavemukosib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/7355/1001/files/80812049096.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 4

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_off00006da0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA0 5268 bytes
SHA-256: 1a5683302caf868783d478a4d093c5e465309c5e5ddd5f5d200852610ef4f52c
font_01_sfnt_off00007f7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F7A 10364 bytes
SHA-256: 37d13fdf7b993f9cb82fc513423e903fe5748b72d826dc1f9b3e0277989e9651

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