Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e6a36d5b3fee77f…

MALICIOUS

PDF

38.9 KB Created: 2020-09-13 02:10:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 03469fc288a1e1732f1d2d842fde6263 SHA-1: 8a7fa8778c4f38af7286dcb811bf668a3c4c5dcb SHA-256: 4e6a36d5b3fee77faed228b76fb4b7540810b7496b52d2fbddbe647c7c6ec0f8
194 Risk Score

Malware Insights

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

The PDF file contains a large number of embedded links, many of which point to a redirector service. The document body text, though heavily obfuscated, contains references to 'unblocked games bmx' and a URL that aligns with the malicious redirector. This suggests a social engineering attempt to drive traffic to malicious sites, likely for further exploitation or malware delivery.

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.link/wix?keyword=unblocked+games+bmx In PDF document text
    • http://rejized.drjuliannavalearningacademy.com/uploads/1/3/1/6/131607062/2655360.pdfIn PDF document text
    • http://lowatevo.yanka-online.com/uploads/1/3/1/4/131483068/sobamumiwumol.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/1/0433/4164/3928/files/publisher_booklet_templates_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/7784/2582/files/noxulixib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0463/2805/3915/files/worm_dissection_worksheet_answers.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1097/2053/files/limitawerixodu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/1323/2024/files/movupikejekutudox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8670/8890/files/ninoti.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1077/6478/files/aradhana_malayalam_movie_songs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1867/3566/files/nodikivuludatovifuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1526/6713/files/59517292455.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/90d19e_2db70e939f6d40f4b1ea95cd408cbe1f.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/191a6d_71d11e994c984f20a4267a09896c92b0.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000056c0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x56C0 5428 bytes
SHA-256: 3d4b2c092f1bbf73421043afa534f908cc2742d0b75e59cc2dd069fbc1c2bbb4
font_01_sfnt_off0000692c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x692C 11708 bytes
SHA-256: 95f106dd0294ad9163a2e5ff82bd833d3b0fb7f19c5cf146b946d33ace538cdd

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