Malicious PDF — malware analysis report

Static analysis result for SHA-256 75a61a33ca44dbb4…

MALICIOUS

PDF

42.3 KB Created: 2020-08-31 06:49:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 469884020487feaf4263df6e725376b8 SHA-1: 1547ca947d3eabc740ca7f6c24b610cd2b065a9d SHA-256: 75a61a33ca44dbb451eee6d751f04fee1dfa7d79802acd9f0ffcbc6feceaeef0
194 Risk Score

Malware Insights

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

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely used to obscure the final destination of the malicious payload. The document also features a large number of links to other PDFs hosted on Shopify, suggesting an attempt to manipulate search engine results or host additional malicious content. No scripts were extracted, but the presence of malicious links and the ML classifier output strongly indicate a malicious intent, likely for phishing or malware distribution.

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/wix?keyword=forest+of+the+blue+skin+wiki 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/1/0430/6891/5863/files/makakog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9005/9176/files/sojaguzunex.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7210/2301/files/toefl_test_preparation_kit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/4841/6933/files/ditokolibododawujelepodix.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5240/0793/files/lujesug.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8276/7779/files/96008164711.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7802/5377/files/83923327048.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/e02969_f7337ef88c444ee9be27b1358a1c7e0a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_4dd701a1a1a34f57acba642faf80095b.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_b023001898134fe8b6c924ffb909eb18.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0dd040_5d2496f6899f48c59b5ca2ed2f8227b5.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/edb4a7_65fb7a953e1c4e709c8ee1dbfbd149fc.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_007c84f8449f45b1aed9b09d4a4f3800.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/7f929b_06c0f5ee4eb14fe2a3a175e0b85f7dce.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/834936_974dea95a2d44b96bb4ca0c765b40a57.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54AD 4896 bytes
SHA-256: 5adbfcbd70f978d560112aec78b4efc743475540f0fa95f98c1fd26784d590c9
font_01_sfnt_off00006568.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6568 9936 bytes
SHA-256: 2ab8c280bf1c445822ecb9ad276708ba766b3ec94f1e942016ea78274bdbd1c8
font_02_sfnt_off000087a2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x87A2 16036 bytes
SHA-256: 1bbfed8e334bb90a5f9d7804257786d4ae38288f3118609b7815268b8043fba5