Malicious PDF — malware analysis report

Static analysis result for SHA-256 85f2ce94af2f2648…

MALICIOUS

PDF

45.7 KB Created: 2020-07-30 10:04:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5110a5894dd1f6fb48b6fbac5f644f1e SHA-1: 5157c460789728e8a677d4552eb66fe9461c86c6 SHA-256: 85f2ce94af2f2648d51110858da52b396b862c0d8d5ed453ab9b59d8900954ed
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, with a critical heuristic firing for a malicious redirector at 'https://ttraff.com/pify?keyword=balantidiasis+tratamiento+pdf'. This indicates an attempt to direct users to potentially harmful websites, likely for phishing or malware delivery. The ML classifier also strongly flagged this PDF as malicious.

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=balantidiasis+tratamiento+pdf In PDF document text
    • http://files.videogamelegacy.com/uploads/1/3/1/4/131453924/ad9d903.pdfIn PDF document text
    • http://files.abeautifulmess.net/uploads/1/3/0/8/130874101/tovovab.pdfIn PDF document text
    • http://files.stayatlemas.com/uploads/1/3/1/6/131607712/patuguvep_nagizoki_selusowef.pdfIn PDF document text
    • http://files.linksstainedglass.com/uploads/1/3/1/3/131379496/matasawuvanadaret.pdfIn PDF document text
    • http://files.roaminggoatmi.com/uploads/1/3/0/7/130776483/b5e4b401.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/1/0429/6579/4965/files/23145334818.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3137/8592/files/7947699526.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5557/1353/files/xazovedokalekulojimut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0811/5366/files/donabezonogakejugaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0507/4838/files/35097557769.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5029/4678/files/26117582457.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3234/6773/files/18205326079.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8095/8617/files/7203153346.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7729/6543/files/tomuxixa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1744/4264/files/77413021108.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2379/2285/files/87615799870.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9798/1082/files/sefozewe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/medarovadujagowurevasote.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_off000073d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x73D0 5024 bytes
SHA-256: 5bf26c82c83216e07e5e404da6ce3cf472e1b2ffe96849ba50763562198d0919
font_01_sfnt_off000084ba.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x84BA 10760 bytes
SHA-256: bc1c24b943334eb47f71f2be8aed7683972d4d4e557b98511cfe3f357d11d089

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