Malicious PDF — malware analysis report

Static analysis result for SHA-256 b926bcdb889b996c…

MALICIOUS

PDF

43.7 KB Created: 2020-08-19 00:54:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 093c56be857883750c94682c855611ad SHA-1: 9faf8db641a6d3c812756aa5b508d07ac6b4b839 SHA-256: b926bcdb889b996cb5480827aa244ec1e36dbcb79053cde215c326f361543955
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF contains a critical heuristic firing for a malicious redirector link, pointing to 'ttraff.ru'. It also exhibits characteristics of a PDF link farm, with numerous links to external PDFs, many hosted on Shopify. The document body, though heavily obfuscated, contains text related to 'Fortnite v bucks xbox one free' and the malicious URL, suggesting a lure for a fake giveaway. The presence of a call-to-action button heuristic further supports a phishing or scam attempt.

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=fortnite+v+bucks+xbox+one+free In PDF document text
    • http://kifur.camarillocommunitygardens.org/uploads/1/3/1/6/131606490/fefuladuzupoful-wuvip-vabom.pdfIn PDF document text
    • http://fontawesome.iohttp://fontawesome.io/license/In 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/1/0447/9008/7829/files/gate_syllabus_for_mathematics_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6983/1323/files/honeywell_programmable_thermostat_manual_rth230b.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0204/3288/files/xosemopogo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0968/7208/files/42626419095.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1141/5962/files/99009526033.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1218/6531/files/bunupasitesajet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0935/1578/files/sidatututoruforowimilupi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4582/1333/files/public_health_act_2005_mandatory_reporting.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0445/8813/8660/files/functions_of_morphology_in_linguistics.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4614/2114/files/56425575868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5333/5207/files/66823063132.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 3

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000063a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A1 1528 bytes
SHA-256: 6292f9ef2a2a6026cebbc160480f933f6d7cfd88753f9ce58280f25171cfa333
font_01_sfnt_off00006b69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B69 4920 bytes
SHA-256: 15c80520cb918cc81ff3a3277c8f314e76bc4732f7ba8cb7761127caad95ae07
font_02_sfnt_off00007c4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C4D 11084 bytes
SHA-256: 167459258337eb6458c6485b28acefcbc816b348dac78c7bc910fc00cac8c201

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