Malicious PDF — malware analysis report

Static analysis result for SHA-256 d11c750d1159ff97…

MALICIOUS

PDF

33.7 KB Created: 2020-08-19 19:14:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9e7be9319f94c826a48bd5896b45626f SHA-1: 835677943b14a4ccbef724fdb16d9cc6c1e9c879 SHA-256: d11c750d1159ff97334164488878fb8b605686197fa8f2091011c90a8acf0a39
194 Risk Score

Malware Insights

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

The PDF contains a link farm and a direct link to a known malicious redirector, indicating a phishing or scam attempt. The document body, though heavily obfuscated, contains the string 'snake game nokia apk' and the malicious URL, suggesting the lure is related to a game download. 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=snake+game+nokia+apk In PDF document text
    • http://files.bennewitzdds.com/uploads/1/3/1/8/131872021/a39f0fd.pdfIn PDF document text
    • http://files.kelwoodyoga.com/uploads/1/3/2/7/132740545/50f5c51504.pdfIn PDF document text
    • http://mepufawaz.princeopeace.org/uploads/1/3/1/3/131398140/b644f9bba760ed.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/1/0432/3606/5438/files/45967340496.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3564/0487/files/50596009397.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6345/2583/files/35053533597.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3320/6690/files/virgil_aeneid_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/7902/5318/files/68875639810.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/8119/5680/files/saforodaxaxevijugu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/7658/2552/files/17548612248.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1895/2612/files/jabosejukiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/47693697228.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0161/8327/files/59597640170.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_off0000465a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x465A 5000 bytes
SHA-256: 977e57c32651cbd2d78bc59778fe141f102f099ab349233d221ac9194c3139e0
font_01_sfnt_off00005752.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5752 10352 bytes
SHA-256: ae58fbade3933aa7a1dfd32deacf407e0c8c478ea595faf08c2490467c911d8d

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