Malicious PDF — malware analysis report

Static analysis result for SHA-256 754089e1141f513f…

MALICIOUS

PDF

59.7 KB Created: 2020-08-24 21:22:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 012466af2dcb34385da917c745968598 SHA-1: 218adc5965a74de8a9d0d816889be6f44f6ea61b SHA-256: 754089e1141f513f17ab35ce825d522b7d5e04a839cd0d3d1d14fb4634348b55
194 Risk Score

Malware Insights

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

The PDF contains numerous embedded links, many pointing to a redirector URL (ttraff.ru) identified as malicious. The document body, though heavily obfuscated, contains the same redirector URL and references educational materials, suggesting a lure to disguise malicious intent. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is designed to redirect users to harmful content.

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=ccna+2+chapter+4+answers+2019 In PDF document text
    • http://files.flooringnetwork.com/uploads/1/3/2/6/132681409/numedegamidu-fukusox-wovofukemipe.pdfIn PDF document text
    • http://files.stjuliastc.com/uploads/1/3/2/7/132740619/2776946.pdfIn PDF document text
    • http://files.musicwithmrshatch.com/uploads/1/3/0/7/130776791/xarinuz.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/1/0430/6921/0773/files/wipisizenenen.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3653/1095/files/multiples_worksheets_grade_5.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8161/3987/files/capabilities_of_computer.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3877/7249/files/picsart_editor_for_pc.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8677/4436/files/38943969275.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2865/9874/files/appendicitis_complications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3098/6400/files/poxamemotasolurena.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5555/4455/files/47155513972.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2947/1130/files/2227193317.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8941/8647/files/lagu_atmosfera_berakhirlah_sudah_lirik.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4133/3147/files/wogavejixesigukitegis.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 3

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_off0000a525.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA525 5556 bytes
SHA-256: 8c558bfa1fd58a2630bb94dcdc9eba1ec23b39f9d09d5cc5d13bc392d3669382
font_01_sfnt_off0000b80e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB80E 12984 bytes
SHA-256: ddb35b21fa23a90a4cd7ebe4b9744019a9c03e3cf0008bf22aa217caa2b1fda2

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