Malicious PDF — malware analysis report

Static analysis result for SHA-256 8ddfc197e7551686…

MALICIOUS

PDF

34.0 KB Created: 2020-08-17 18:29:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 15945bdfa313e88e00ecbb94e67a3b5a SHA-1: 2884674c405cf834cf57a7a5745325f38499bff0 SHA-256: 8ddfc197e7551686ace5b3979972e61becb7e732c749063a8a6a59e7b0fbb24d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, with a critical heuristic identifying a redirector link to 'https://ttraff.cc/pify?keyword=f+m+d+r'. This suggests the document is designed to lead users to malicious infrastructure, likely for phishing or malware distribution. The presence of numerous external PDF links further supports this as a link farm tactic.

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.cc/pify?keyword=f+m+d+r In PDF document text
    • http://files.azkillerbeessoftball.com/uploads/1/3/0/8/130874518/jemizip.pdfIn PDF document text
    • http://files.jasonsmurphy.com/uploads/1/3/1/4/131409017/4758547.pdfIn PDF document text
    • http://files.reefshawproductions.com/uploads/1/3/0/8/130814085/leriwupir-zalixulafimal-wegokivexibok-doruzuwoxuxaf.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/1/0433/4357/7246/files/pune_detailed_map.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2675/0362/files/xabarofuloferazede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7131/5876/files/29260796663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1979/5623/files/built_up_edge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6665/3858/files/valhalla_knights_2.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4309/4677/files/numuzerejoluzatunekor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9400/7201/files/puketozigufevawukudifoko.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1865/7697/files/retadopipujuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4298/7423/files/3602879198.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0744/1053/files/10_breakthrough_technologies_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1624/1831/files/tavifulikubejafejijo.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_off0000494b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x494B 4504 bytes
SHA-256: bbeada80d1d8e17c57e9a4d848350af78d50f72ffd398c4b5e257a49c02ce23d
font_01_sfnt_off00005888.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5888 10320 bytes
SHA-256: 4ce3380ca9521fc43bb2000b261d9689625a81404c70d2738277c4da6d17db18

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