Malicious PDF — malware analysis report

Static analysis result for SHA-256 45ff55b60793dd8d…

MALICIOUS

PDF

42.8 KB Created: 2020-08-19 01:02:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f5969752d207035f956ac2f0afc3a50 SHA-1: 501606eb4f282740d30d8e425f9f149d78f11096 SHA-256: 45ff55b60793dd8d237e1896bdb82941049e50f981b9870b03bc01ec7bc5b1ad
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 used to deliver a secondary payload. The document body and embedded URLs suggest a link farm tactic, aiming to obscure the malicious destination. The ML classifier strongly indicated maliciousness, supporting the analysis of the redirector link.

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=assassin%2527+s+creed+wallpaper++for+pc In PDF document text
    • http://files.mathwitheeesinc.com/uploads/1/3/1/6/131637307/4998129.pdfIn PDF document text
    • http://files.ptediting.com/uploads/1/3/1/8/131871816/nawesamojazefamovamo.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/1/0428/0342/9535/files/gudizukidegelorepev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/0835/5486/files/wiwawodixinuleli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0447/0997/0076/files/politikal_na_pakikilahok.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/8029/5334/files/best_books_for_2_3_year_olds.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/6965/1606/files/tadawi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5265/5002/files/73630890131.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2412/0997/files/zuwebigatuwiwumiminejiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2270/5055/files/stress_management_worksheets_for_adults.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/6383/6834/files/5680321096.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6826/8456/files/99060619811.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/2038/1342/files/gta_vice_city_cheats_android.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_off0000693e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x693E 5264 bytes
SHA-256: c021ef84a9704f6909e282fa748a8460aab30036030b7575cc3243f9a9675aac
font_01_sfnt_off00007b42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7B42 10284 bytes
SHA-256: d20577c91e3a3fa3439b1051c7c86fced99ac83d29f7982e6383354e49201d97

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