Malicious PDF — malware analysis report

Static analysis result for SHA-256 7aa37f42e232a016…

MALICIOUS

PDF

41.7 KB Created: 2020-08-02 22:10:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 3ab17a0f87ade766400944d75fdc50a6 SHA-1: b0fd3c7d39ca16f6ea039980cbf9050e7795bfcf SHA-256: 7aa37f42e232a01636e07f7b43016d22b417817fbe723127c600108d1fd8589b
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to SEO redirectors designed to obscure the final malicious destination. The primary redirector URL, 'https://ttraff.cc/pify?keyword=classic+car+vin+lookup', is explicitly flagged as malicious. The document body, though heavily obfuscated, also contains this URL and other benign-looking PDF links, suggesting a link farm used for phishing or malware distribution. The ML classifier strongly supports the malicious verdict.

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.cc/pify?keyword=classic+car+vin+lookup In PDF document text
    • http://files.gpstrack.ie/uploads/1/3/0/9/130969818/silozomep.pdfIn PDF document text
    • http://files.top-tungsten.com/uploads/1/3/1/1/131164446/vuvifukuvoveramataw.pdfIn PDF document text
    • http://files.compusoftcanada.com/uploads/1/3/1/4/131452806/tojulo-buzepon-xametiwamimaxe-wepalokomim.pdfIn PDF document text
    • http://files.jasminquill.com/uploads/1/3/1/4/131409597/375dd.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/1/0431/5637/3659/files/go_launcher_ex._apk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6006/7480/files/tipegasojibujunifamoxate.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9592/4640/files/72360263256.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7940/1634/files/23585872247.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7179/8424/files/11138441493.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6348/4315/files/13722220663.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6451/6005/files/labikerimimopemut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5181/0969/files/7783129952.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5036/0232/files/ant_downloader_for_chrome.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1769/9477/files/52856007126.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3658/9730/files/49907464487.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/3074/0135/files/domuliwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3345/0903/files/41004849507.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_off0000656e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x656E 4956 bytes
SHA-256: 972ff1df791c3552dccc6cc4ecfe9f19c0a000832c1f92f43449bba810691c13
font_01_sfnt_off0000765b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x765B 10420 bytes
SHA-256: bb438de3fb489d98bd3cb55becd63799b0f5d4c81f736500ef24965ac99a9ee3

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