Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e3254bbc4da3a3d…

MALICIOUS

PDF

40.9 KB Created: 2020-08-05 06:44:53 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f63cd9bc3480b6c202bd541f076884d7 SHA-1: e00ff215c77eb8eda8403b4b3938b39e26b4800c SHA-256: 1e3254bbc4da3a3d84051ef164822cf5ce0bcf88ee77ee6d75cdf08d28b4c8c0
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 Malicious Link

The PDF contains a large number of embedded links, with one specifically identified as a known malicious redirector. This suggests the document's primary purpose is to direct users to potentially harmful external content. The ML classifier also strongly indicated maliciousness. No scripts were extracted, and the document body was heavily obfuscated, making further analysis of intent difficult.

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.cc/pify?keyword=achyutam+keshavam+lyrics+in+english+pdf In PDF document text
    • http://files.greensoundhightech.co.uk/uploads/1/3/1/4/131453823/bbc7a9cc0608e10.pdfIn PDF document text
    • http://files.bayjedesigns.com/uploads/1/3/1/6/131606631/4564185.pdfIn PDF document text
    • http://jokixo.armytrailrunner.com/uploads/1/3/2/8/132814930/1708293.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/1/0447/5689/3847/files/cuisinart_coffee_maker_instructions.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1350/4150/files/29049770165.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5762/6792/files/jutages.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8153/9487/files/namopopubufudoxi.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0089/7434/files/81933277912.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0349/3022/files/99111496441.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/2816/9375/files/21_jump_street_online_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9384/3356/files/tuesday_with_morrie_quotes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8117/9048/files/25204179776.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8692/1376/files/sojudetaxejabibajawev.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
    • http://www.geocities.com/mitra_anirban/hobbies.htmGNUIn PDF document text
    • http://www.gnu.org/copyleft/gpl.htmRegularIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004e97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4E97 5784 bytes
SHA-256: 96f023a4db42845697bfaf70bb8e4136e6dc08dde2cfe32eeb48767a41666a57
font_01_sfnt_off0000622e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x622E 3720 bytes
SHA-256: 6539b129c5cd894636dc8f40f53a156c00c8f46378ab4f137c96d687a1cff6ed
font_02_sfnt_off00006d91.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D91 12920 bytes
SHA-256: 92c7c970624354330358dcee5aa5afb9dc26371417707eaa41290b5e9e12803a

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