Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d474cb181eb583f…

MALICIOUS

PDF

50.1 KB Created: 2020-08-23 00:26:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 246d22763c75750587f9175a2df8b036 SHA-1: d6eee6ce2de43425c70515412f5e0a688defb61e SHA-256: 5d474cb181eb583f34e2912db7809d14559689a6b076355797cd9a78d1272e93
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains numerous links to external resources, including a primary redirector at `https://ttraff.ru/pify?keyword=cartesian+form+of+complex+numbers+calculator`. This redirector is flagged as malicious and is part of a link farm, suggesting a phishing or SEO scam. The document body, though heavily obfuscated, contains the same redirector URL and benign-looking Shopify URLs, likely to appear legitimate. The ML classifier strongly indicates maliciousness.

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=cartesian+form+of+complex+numbers+calculator In PDF document text
    • http://files.laurapowerdaviesartist.com/uploads/1/3/1/4/131454034/votafoj_wogetami.pdfIn PDF document text
    • http://files.gaythessaloniki.com/uploads/1/3/1/4/131453206/zoronofami-letonikenajuv.pdfIn PDF document text
    • http://kofozesa.psychedelicsmadnessawakening.com/uploads/1/3/1/1/131164250/8402300.pdfIn PDF document text
    • http://gunona.northalbanylodge.com/uploads/1/3/2/7/132740978/merabeviderade.pdfIn PDF document text
    • http://files.annualreport-m2016.com/uploads/1/3/2/8/132814427/delopufekigo-rotivobo.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/1/0433/4429/8133/files/4293423414.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7235/6509/files/gafubojasifoxedabizumiw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/3350/8512/files/xovalemubuwagu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5041/7827/files/ganataware.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/gozerivefemipopibukuw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7015/2088/files/sukulexekufif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9715/3943/files/jonomobaza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2997/8526/files/puwanox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3395/1399/files/zejefuwuranozig.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Related samples 8

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_off000060bd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60BD 5272 bytes
SHA-256: 68a996d8b5f5c95a2989cbacd5f6dcc8fb17e53e32ffa04c88e0c2ed7c519059
font_01_sfnt_off00007296.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7296 15396 bytes
SHA-256: f6110f06c96c525f02bfaf542b746b0cb731be8977af3b88c5e8d062eb1519ee
font_02_sfnt_off0000a410.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA410 16120 bytes
SHA-256: 2da7240b515aefb86c699d6b9c9e80df1096f28e2ca701347fd3a560c4af6249

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