Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed8145eaccb033d9…

MALICIOUS

PDF

33.8 KB Created: 2020-08-06 18:02:58 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: b87a4dabdb9ef523169c5e9854ab53b9 SHA-1: 9c5aed4c5417b4d5e6a34fbaf2767e517f3c58bf SHA-256: ed8145eaccb033d9e9bb8366c6ad6228e82afdf96be96f668646b87f9f6d57e7
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains a link to a known malicious redirector, ttraff.ru, which is likely intended to lead the user to a malicious site. The document body and embedded links suggest a link farm or redirection tactic, aiming to obscure the final malicious destination. The ML classifier strongly supports the malicious nature of this PDF.

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=beyond+training+pdf In PDF document text
    • http://files.professionaleyetusc.com/uploads/1/3/1/0/131071041/pudasuxujoguwodoxi.pdfIn PDF document text
    • http://files.wolfeboroinn.com/uploads/1/3/0/7/130739570/wofafegaroxogi_sojude_xalugiratugawim.pdfIn PDF document text
    • http://files.wildchildfreeschool.org/uploads/1/3/1/6/131606965/rekufowesiketawe.pdfIn PDF document text
    • http://files.whshuskymusic.com/uploads/1/3/0/8/130813921/b0ef60.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/1/0431/9775/9643/files/179082928.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4932/0610/files/ferudevujurebetemadosi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6416/4506/files/89376349398.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6394/8950/files/tezarowujipoz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5769/3347/files/8062680784.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/zejakepujubuk.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8882/8829/files/netflix_forensic_files.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3038/0698/files/belarigiwojigekesopuxatog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0421/4942/files/vifevonolekajotunulazu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4496/9367/files/buku_undang_undang_dasar_1945_amandemen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0473/8206/files/5943199741.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_off000044e7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x44E7 5148 bytes
SHA-256: 1e8d0a12bc9bc1cac7e6571d03cd16a6a43985d470f437287734dfe19102ea22
font_01_sfnt_off00005692.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5692 10672 bytes
SHA-256: 312042a9d828dab09ea3a90a9f7f9fcb9265bd434f3f80ddf5c3afce1152bb9c

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