Malicious PDF — malware analysis report

Static analysis result for SHA-256 63f2cf6364fae454…

MALICIOUS

PDF

48.9 KB Created: 2020-07-30 00:39:25 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 09d8955e7da757d8a1626ce66ae6b367 SHA-1: 6f1977799a8e1bc9b02bee7b825d3579a9b4ae67 SHA-256: 63f2cf6364fae45457eda54ed5a4144c146e4d61d5133101bb1c9790e44064a6
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, many of which point to a redirector infrastructure known for malicious activity. The document body, though heavily obfuscated, suggests a lure for a 'free download', aligning with phishing or scam tactics. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs further supports a malicious intent to redirect users to harmful sites.

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=the+bulletproof+diet+pdf+free+download In PDF document text
    • http://files.educatorlaurawynn2.com/uploads/1/3/0/7/130775145/f612c3b80.pdfIn PDF document text
    • http://files.abbyweiss.com/uploads/1/3/1/4/131453946/nifodifojutidewe.pdfIn PDF document text
    • http://files.bandofgypsiesranch.com/uploads/1/3/1/6/131606159/lisonep_dajiwasuwawoset_bexomebowopoxab_mejomumexidabor.pdfIn PDF document text
    • http://files.charlierichmond.com/uploads/1/3/0/8/130874368/xotezalesejewimi.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/1/0430/3680/3233/files/99609207539.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/0178/1156/files/54383715566.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2503/8497/files/nutarusafetelufozavesolal.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/5035/2296/files/40531926836.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0431/3247/files/jigasejexilepu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/3290/3829/files/97261079003.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/8309/4434/files/gedujapelejizig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/9622/0572/files/51888911277.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6971/8172/files/85180271488.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9801/3845/files/wofaziwakoxejenidipukiwet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6420/5216/files/25044320962.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 7

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_off0000835a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x835A 5016 bytes
SHA-256: f9ed583dfe079c5c019408e41b7ad6dc248076deda04ec46f4b0467640306f67
font_01_sfnt_off00009465.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9465 9868 bytes
SHA-256: 03cd3067d2623d4275d66110151cb05fa9e13aebf017d9b45ca514f80dc42250

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