Malicious PDF — malware analysis report

Static analysis result for SHA-256 776fbb82f5855e96…

MALICIOUS

PDF

43.7 KB Created: 2020-08-03 16:03:38 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 70b177f9d19856996dd1e8b75bb53113 SHA-1: f8f3161082032ace222a7e6d36ed4c29d6790237 SHA-256: 776fbb82f5855e96eba04150b9ef57814c30e4ab58521dfb82dfada8e3c13fcd
194 Risk Score

Malware Insights

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

This PDF file contains numerous links, many of which point to a redirector service (ttraff.cc) known for malicious activity. The document body, though heavily obfuscated, also contains a reference to the same redirector URL. The presence of a large number of external PDF links suggests a link farm or SEO poisoning attempt, likely to distribute malicious content or phish for information. No scripts were extracted, but the PDF structure itself facilitates the 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.cc/pify?keyword=adriano+gianturco+a+ci%25C3%25AAncia+da+pol%25C3%25ADtica+uma+introdu%25C3%25A7%25C3%25A3o+pdf In PDF document text
    • http://files.jazztheoryandpractice.com/uploads/1/3/1/4/131413678/kutukagijipav.pdfIn PDF document text
    • http://files.saintveronicaparish.com/uploads/1/3/1/4/131407849/jifibomugi_gariv.pdfIn PDF document text
    • http://files.neuroenlight.com/uploads/1/3/1/4/131438389/tilibumiba_nerikoposijobip.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1634/7035/files/kijunomidodekaxisuf.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0742/4158/files/297519363.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/6956/3290/files/juzidopusiridukepaniza.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7634/6266/files/zoxod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8099/0366/files/32640473280.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3321/4621/files/nimoniloxajoxekadesoma.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9812/8036/files/falewivigukenafikegara.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5489/1161/files/discord_call_not_working.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2757/0596/files/59167488903.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/9928/3863/files/42113580145.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0921/1549/files/lagupojusexe.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 2

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_off00005917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5917 5752 bytes
SHA-256: bb1c72114a6d877eea740ce48d40a7a90f785740ed8adb6016d19de08bee2b9d
font_01_sfnt_off00006bbf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BBF 12296 bytes
SHA-256: 8f7f41c4281f0e4b3213f2c6174628f2304d9245d2dce7d6f3f5679b14ea146f
font_02_sfnt_off000090d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90D0 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

Open this report in the interactive analyzer, or submit your own file for analysis.