Malicious PDF — malware analysis report

Static analysis result for SHA-256 33ae81ba57c9f25f…

MALICIOUS

PDF

34.5 KB Created: 2020-09-10 23:16:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42822f737e3b1f1f99583c6fce846197 SHA-1: 99aa198ce35480bcf2b244864e477636a853f809 SHA-256: 33ae81ba57c9f25fcaa8880a48e1bc7969b438c9ddb5336e73ad57083bd8fb0c
194 Risk Score

Malware Insights

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

The PDF file contains a significant number of external links, a technique often used in SEO poisoning or to distribute malicious content. One of these links, 'https://ttraff.me/pify?keyword=chandu+kannada+movie', is identified as a known malicious redirector. The document body itself is heavily obfuscated and contains the same URL, suggesting it's the primary lure. No scripts were extracted, and the PDF structure itself does not indicate exploitation, but rather social engineering via link redirection.

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.me/pify?keyword=chandu+kannada+movie In PDF document text
    • http://files.hillcountrygardener.com/uploads/1/3/0/7/130739322/darugibokopezokam.pdfIn PDF document text
    • http://files.bigthompsonuniservunit.com/uploads/1/3/1/3/131398252/c0957954ecca52.pdfIn PDF document text
    • http://pejefix.totalcbdhealth.com/uploads/1/3/1/4/131408791/pozeliwa.pdfIn PDF document text
    • http://files.mareacraig.com/uploads/1/3/2/6/132696598/c5dee2c0.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/ecec20_7706b722f74c4dfdb887fdd856bcbe7e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d1d005_0d8dac41c5404c62856fab84d315e5c9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_2b12ed667c8546a8b7cda8764859d588.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b6bf5b_96bf5ffa9c8c46b8b2e0fbe0dfcee739.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/daca0d_ccba14387f324b2aa481cdafa5daad86.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9923/5228/files/35627788109.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4244/7253/files/5061959491.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3423/7333/files/26231730322.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1764/1879/files/mikuzezupeligunokirexige.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9967/5041/files/karivobelizim.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/8575/7606/files/fleecy_dryer_sheets_msds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6539/2804/files/naranjo_causality_assessment_scale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0332/8150/files/supply_chain_management_sunil_chopra.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 6

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_off00004b91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4B91 4788 bytes
SHA-256: 85e36c074ba55f78dce037f0f7a28f7df1ba1d6e8d2a3622e9c3f6b7f91cb56c
font_01_sfnt_off00005bb4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BB4 9828 bytes
SHA-256: 7286973a75a9213709d6c25b5043d51a2efd20d6796741fcfc512fa236616ba8

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