Malicious PDF — malware analysis report

Static analysis result for SHA-256 941f4b742f135191…

MALICIOUS

PDF

64.4 KB Created: 2020-08-26 15:47:42 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 36745cfdbdcf09dec7f6cc1fa8b4a243 SHA-1: c8be89b4480f58f0cf4c07e9399c2e94a61d1151 SHA-256: 941f4b742f135191f5b161fb3a05953ef3b206338ff10f9759b5d30302ed9d55
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is designed to lead users to malicious content. The document body, though heavily obfuscated, contains the same URL and keywords related to game cheats, suggesting a lure. The presence of numerous external PDF links, many hosted on Shopify, further indicates a link farm or SEO poisoning attempt to drive traffic to the malicious redirector.

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=madden+12+ps2+cheats In PDF document text
    • http://binalom.vinoetamicis.com/uploads/1/3/1/4/131406821/1425fc6c8d4.pdfIn PDF document text
    • http://files.scitc.org/uploads/1/3/1/4/131437535/beniruv.pdfIn PDF document text
    • http://files.unioncongregationalucc.org/uploads/1/3/0/7/130739480/2ac5a.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/1/0433/6225/5006/files/14806053188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4862/3510/files/acousticsamples_sunbird_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8032/7070/files/vasojijoro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5170/3706/files/bowiginirenos.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7652/7014/files/96087412904.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9749/8535/files/arcus_foundation_annual_report.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/4340/4441/files/candy_iggy_pop.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4641/2188/files/sesujurexuta.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9020/6117/files/xudesoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0006/9287/files/84372302778.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1022/0447/files/44041524523.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8307/1642/files/sakol.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_off0000be1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBE1C 5224 bytes
SHA-256: 30b42b1c8a1776d630ea2e0f23633cc5e246b5fc583daad50ea6cf63b628313e
font_01_sfnt_off0000cfe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFE2 11396 bytes
SHA-256: d9533804a68f7ed5a331b56d052c518fc8317bf2c6ba9b2f42af920448bfebde

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