Malicious PDF — malware analysis report

Static analysis result for SHA-256 bea72d0ccd30a396…

MALICIOUS

PDF

42.4 KB Created: 2020-08-23 14:45:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 338112c89c532234ad255616d0ab645f SHA-1: 04ac951abe0ccb277e5c5de5d759fa9487c80941 SHA-256: bea72d0ccd30a3961d1849b1d0b47e69c83fca8f366d24e5075c0c32c5d43456
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1200 Hardware Add-in Systems T1059.001 PowerShell

The PDF contains a link that redirects to known malicious infrastructure, as indicated by the PDF_MALICIOUS_REDIRECTOR_LINK heuristic. The document body, though heavily obfuscated, contains the target URL and appears to be a lure related to an electronic device manual. The PDF_SEO_LINK_FARM heuristic suggests the PDF is part of a larger link farm designed to attract traffic. The ML classifier strongly supports the malicious verdict.

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.com/pify?keyword=nvidia+shield+tv+2018+manual In PDF document text
    • http://jafiduw.carbondalemarket.com/uploads/1/3/1/4/131437254/wanig-kebonomepupu-zovoxitep-zepupijawoxef.pdfIn PDF document text
    • http://rigin.h2iyouthgroup.org/uploads/1/3/0/8/130874472/defewutusapola-rijemagawufifo-nogifofo-zajugeduni.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/1/0428/9167/3763/files/80715212957.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4777/8469/files/tefuvebuxugotoxuri.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/4976/3487/files/jivotosuposovevorariku.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5124/5987/files/29950975325.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9020/5090/files/platform_number_2_video_bhojpuri_film.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1856/7335/files/38690611349.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/5725/6350/files/sulowojutixewu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9127/8486/files/wapking_hd_video_song_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3349/1613/files/tekumiwenumosaw.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5933/9679/files/atul_gawande_el_efecto_checklist.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6214/8763/files/63092508702.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 1

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_off000067ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67EF 5516 bytes
SHA-256: 121b703e4157e7212ab0ad3237f9dc044e143f52cc831081c4a0e35d687a0c2d
font_01_sfnt_off00007a9c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A9C 10068 bytes
SHA-256: 98b234ab515d938e8abf6483e1057b37cd298a07307b46100071521adeee7004

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