Malicious PDF — malware analysis report

Static analysis result for SHA-256 63ce27c91dd5b159…

MALICIOUS

PDF

44.7 KB Created: 2020-08-07 21:20:28 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: bf499d6b4c31b679af5567eaddb933bb SHA-1: 692279f30a43877723d5735dc0b4b1d07242ced5 SHA-256: 63ce27c91dd5b15925c0cdf9e17384011762953374b8b6674c28c75fd645f7c8
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically `https://ttraff.com/pify?keyword=angina+pektoris+tidak+stabil+adalah+pdf`. The document body, though heavily obfuscated, contains this URL, suggesting an attempt to trick the user into visiting a malicious site. The presence of numerous external PDF links also indicates a link farm strategy, likely for SEO manipulation or phishing.

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=angina+pektoris+tidak+stabil+adalah+pdf In PDF document text
    • http://files.sunnybrookranch.com/uploads/1/3/1/3/131398583/1c90e78866.pdfIn PDF document text
    • http://files.helenmccreery.com/uploads/1/3/2/6/132681851/1689e5294eda414.pdfIn PDF document text
    • http://files.mirocku.com/uploads/1/3/0/7/130776215/mazojir_jupimososezife_nowaziw.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/1/0427/8570/2054/files/dowesiguvif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6113/9861/files/bank_of_america.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8535/7463/files/nijovesokut.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9435/1778/files/91021342054.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1045/7753/files/14165886451.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/4059/5352/files/gukedafemanisejapudid.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/4002/1407/files/36366604872.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/3732/5472/files/black_belt_karate_the_intensive_course.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3734/3387/files/dixusebokigave.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5639/0559/files/84913957553.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/5295/5810/files/mikisarugilit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9100/0472/files/zixanunux.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 6

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_off000070e9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70E9 5496 bytes
SHA-256: 42a4a1a202b1f9918b33796398095b8f4e380d6dbb1cb34c12a1173724073934
font_01_sfnt_off00008391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8391 9888 bytes
SHA-256: 0797fe017041187aab11e9fc2dd2ae7bc28f31ab858c42ff0913805e65803d88

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