Malicious PDF — malware analysis report

Static analysis result for SHA-256 c3fe70f186f357a2…

MALICIOUS

PDF

41.6 KB Created: 2020-08-22 13:40:03 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76fd9be4a4f52ee4974474f7b689a54c SHA-1: a6e9bf7e0802afc38f0180a0a4dd2bc3a92f813d SHA-256: c3fe70f186f357a28a2dfdffa94cc9d3454188274578d907e7e2288c9a10dd6e
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF document contains a large number of embedded links, many of which point to Shopify domains hosting other PDFs, suggesting a link farm for SEO poisoning. One critical heuristic firing indicates a direct link to a known malicious redirector, ttraff.ru, which is further obfuscated within the document body. This redirector likely serves as a gateway to malicious content, aiming to deceive users into downloading further malware or visiting phishing sites. No scripts were extracted from this sample.

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.ru/pify?keyword=cpm+geometry+chapter+5+test+answers In PDF document text
    • http://files.bigrapidsdriving.org/uploads/1/3/1/8/131856285/fafixi_rekaxunokawi.pdfIn PDF document text
    • http://files.whitesfolly.com/uploads/1/3/1/4/131408537/venoberabifunas.pdfIn PDF document text
    • http://nizisuda.runwaylink.com/uploads/1/3/0/7/130776265/letuvujived_nufinovaxezi_toxagezexibuj_gusojaju.pdfIn PDF document text
    • http://pebidaj.atlanticbooking.com/uploads/1/3/2/3/132302870/2522450.pdfIn PDF document text
    • http://files.dreamcatcherassociation.com/uploads/1/3/1/6/131637135/beninudisakokaw-sojaronume.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/1/0434/1992/6679/files/weguposez.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0446/9637/1356/files/76845199893.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4629/6982/files/gezijagejitizojufudesuvu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0660/7012/files/dinadofobi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2192/4514/files/nibulikavevunolagixerakil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8770/8825/files/92540607851.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8165/4679/files/27832938029.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0554/0509/files/zuvuxekagulefotoxuguxaz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7846/7222/files/17200494957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7180/7381/files/teen_punished_fucked.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1992/7713/files/70846025521.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/3510/6207/files/jofasa.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 4

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_off000061a7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61A7 5540 bytes
SHA-256: 55f15dd3e9b4fb8b169d74b7357dc669a32a8bcfa82b55a2d45eff44796cf887
font_01_sfnt_off00007475.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7475 10828 bytes
SHA-256: e67bc6cca7fe45255acc8d1cc131157bb92c72b50c1d97b170028f88223c9610

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