Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b691ce8335af230…

MALICIOUS

PDF

47.2 KB Created: 2020-08-14 22:51:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 39b5c9bb02ee0e801d61cbf52c90dfdb SHA-1: b85bdb7fa572037b29775aafcd7b4601ef3646fd SHA-256: 6b691ce8335af2307daeee9345e10709dee1df83b62ed1154fca672d4832e514
194 Risk Score

Malware Insights

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

This PDF document contains numerous embedded links, many of which point to a redirector service known for malicious activity. The document body itself is heavily obfuscated but contains the primary redirector URL, suggesting an attempt to lure users to malicious content, possibly for phishing or malware distribution. No scripts were extracted, but the presence of malicious links and the ML classifier output strongly indicate malicious intent.

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=odisha+reporter+mukhyamantri+ki+hai In PDF document text
    • http://files.drawingacrossthelines.org/uploads/1/3/1/4/131408170/dexobugeredug-kefire-mezulilebufew-gamejaxozekidud.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/1/0430/7153/7301/files/napoweresuzalan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0799/1195/files/facebook_messenger_for_nokia_x2-_01.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1356/0727/files/34214934546.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/8272/5029/files/medium_access_control_protocol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2834/8056/files/85781331417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8803/5486/files/jisukolixexawolu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8218/6905/files/44704226932.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5413/5456/files/clasicismo_pintura.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/95936092566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7405/0458/files/garabazaxitulesujokor.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_off00007226.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7226 5360 bytes
SHA-256: 2bcc9ae055b73b60d8f0f82f1f339c7029dc05c93700e8252f0906dd3842397b
font_01_sfnt_off00008441.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8441 14364 bytes
SHA-256: 34f5923fb2b9e70ef0ea91c1fd50cf7bfd56a4369faa9787d1a90638e5088a79

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