Malicious PDF — malware analysis report

Static analysis result for SHA-256 35191ea4ae1a543d…

MALICIOUS

PDF

46.1 KB Created: 2020-08-19 18:13:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: d1d12b6bd1998bb543aa980675bd9e4f SHA-1: 17194670905d83ed13c6cc6a39726adb0213ab0e SHA-256: 35191ea4ae1a543d4df5137af905feee1d45185ca91425efb149c75dd16c4fa7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links, including one pointing to known malicious redirector infrastructure ('ttraff.cc'). This suggests a phishing or scam attempt, likely using a lure related to 'chinook helicopter video' to entice clicks. The presence of numerous external PDF links, many hosted on Shopify, indicates a link farm designed to distribute malicious content or traffic.

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=chinook+helicopter+video In PDF document text
    • http://wivimijut.soundspremium.com/uploads/1/3/1/4/131407005/e0c690323ee.pdfIn PDF document text
    • http://files.nyewoodperformanceponystud.com/uploads/1/3/2/6/132681891/703686.pdfIn PDF document text
    • http://files.stbenedictchurch.net/uploads/1/3/2/8/132815123/fevuzobonaf.pdfIn PDF document text
    • http://dagavovip.portchteatogo.com/uploads/1/3/0/8/130814328/zulonitomazijesipig.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/1/0432/8158/0200/files/2447761039.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3269/9302/files/88733201113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/mebapilaxiletigafozila.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7504/1435/files/dota_auto_chess_mobile_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6079/6318/files/65777415112.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0016/8597/files/43055158725.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6695/7722/files/wexosopakefabudukon.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/0690/2950/files/79307735049.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1524/8794/files/kirewitabexudagofutu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5727/3237/files/vomowezepusemomuji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1292/2264/files/voxekugomejexav.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zejakepujubuk.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 5

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_off000077ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x77AD 4800 bytes
SHA-256: 6536320460fae2b3d6fe190acd2941f1af599b22f383a218f61f0f5e4553dcb6
font_01_sfnt_off000087f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87F6 10352 bytes
SHA-256: 24a7cc788647273b222352dcf7482ce37dcca539d03ce2f7200a41d4cd294748

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