Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3ecf91d8fcd87ba…

MALICIOUS

PDF

44.9 KB Created: 2020-07-27 18:15:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 702cd9ebd26edd5081e989cdf58655fa SHA-1: 7235bf6b2413c33eea461e4974ed9296edceb718 SHA-256: f3ecf91d8fcd87ba125296b5ba828b28de97e63d7c56bd0cb6ef9e9ceebf37ec
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains multiple embedded links, with one pointing to a known malicious redirector. The document body, though heavily obfuscated, contains text suggesting a lure related to 'Naruto shippuden apk android'. The presence of a 'download button' heuristic further supports the social engineering aspect. The primary attack pattern involves tricking the user into clicking a link that leads to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=naruto+shippuden+apk+android In PDF document text
    • http://files.k9clubhouseymm.ca/uploads/1/3/2/6/132681690/fd3f1d210d649.pdfIn PDF document text
    • http://files.warrencountyfoodcorps.com/uploads/1/3/1/4/131438098/gakijofuxe_wexikufoduwagun_waxunejajefo_kefejeveli.pdfIn PDF document text
    • http://files.marissadanielledesign.com/uploads/1/3/0/7/130739443/mofokuderiruzokure.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/1/0433/0278/1083/files/panoroka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6241/8847/files/setarujizaxemifumibatonek.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1732/9064/files/vavusoxazuluziburinuti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7957/3414/files/wuvebifer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5345/7320/files/97205087110.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5178/6135/files/90974004273.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6263/2360/files/gavuzafagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5843/8056/files/jikixobekozazuwonagov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5211/2804/files/jotumorisososulizowud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5851/1510/files/35861659947.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5095/1066/files/dolenoronakotisi.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_off0000735b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x735B 4932 bytes
SHA-256: 30f157c819ff82f4b8b8184b62687f6b6aa25944bd08558b4a87702514bc33a0
font_01_sfnt_off00008410.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8410 9992 bytes
SHA-256: 5c657b2bc5267f2cd7df5e78e2b7adea27bb8e3cd913a7dde501cfcc5a0f801b

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