Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cf802c7c861e767…

MALICIOUS

PDF

58.4 KB Created: 2020-08-05 06:45:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f4154e785a17185445d02dbe8c1aa6a7 SHA-1: b2a79a73b60157fc2d43a421aef329c30685f226 SHA-256: 7cf802c7c861e7671a9d8abf026e5021f572fa911bb9db5219cf0eb1221bd35c
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to redirector infrastructure, specifically 'ttraff.com', which is flagged as malicious. The document body, though heavily obfuscated, contains the URL 'https://ttraff.com/pify?keyword=calendrier+2020+octobre+pdf', suggesting a phishing lure related to a calendar. The presence of numerous external PDF links further indicates a link farm or SEO poisoning tactic to distribute 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=calendrier+2020+octobre+pdf In PDF document text
    • http://files.stephaniebershyoga.com/uploads/1/3/1/3/131379371/1049198.pdfIn PDF document text
    • http://files.sacredheartepri.com/uploads/1/3/1/0/131069899/dodixafefuroremar.pdfIn PDF document text
    • http://files.joplatesnweights.com/uploads/1/3/1/0/131071043/5498754.pdfIn PDF document text
    • http://files.moorereplacements.net/uploads/1/3/1/4/131453485/792931.pdfIn PDF document text
    • http://files.nmtiasf.com/uploads/1/3/1/4/131407051/xetomekukuw.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/1/0432/3459/0878/files/11669397959.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3257/5132/files/godegoluxibadoxeluzi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7197/9172/files/angular_5_tutorial_point.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1241/3851/files/79366049918.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0127/3755/files/fenuzuregifelajoporep.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/9972/4702/files/zizozurasegemajikado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7837/6867/files/50338886450.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3425/5258/files/data_mining_tutorialspoint.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5582/5567/files/40777232412.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4790/1592/files/zutijofutudujig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/6208/4262/files/wekelanuzu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/0668/1497/files/43466299687.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2585/8714/files/fumelilotoniredumenibo.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_off0000a2da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2DA 5288 bytes
SHA-256: fafa9df71250eab1e7925cdfc4b07611374a3bef7ce0d61ed4f240483564e1e7
font_01_sfnt_off0000b4d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB4D6 12128 bytes
SHA-256: accd1194c90a0dbd58ae63ec8d0aa2ade0070999dbeb4cbbfba4914ca04d0a1c

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