Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e10cf0350994adc…

MALICIOUS

PDF

48.5 KB Created: 2020-07-29 14:50:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 58051a2d3f75ff513851629b85e1bb0f SHA-1: b1ac44ca2add2c4a51184fd8cbf5cd18af9a7854 SHA-256: 4e10cf0350994adc46a118d11de3ce7d367b0f60f296404474aa0f91727c94a9
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF contains multiple embedded links, with one identified as a malicious redirector. The document body is heavily obfuscated, but the presence of numerous external links, including a link to a known malicious redirector, suggests a phishing or scam attempt. The file is likely used to lure users to malicious websites.

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=kickboxing+training+techniques+pdf In PDF document text
    • http://files.thebarnatlovefarms.com/uploads/1/3/1/8/131871569/6614401.pdfIn PDF document text
    • http://files.kcpanhel.com/uploads/1/3/2/8/132815961/1055807.pdfIn PDF document text
    • http://files.aspleyclassesforseniors.com/uploads/1/3/1/4/131438541/jagalusiginozekosu.pdfIn PDF document text
    • http://files.hvaillancourt.com/uploads/1/3/0/7/130775373/robepe-repasam.pdfIn PDF document text
    • http://files.keysofawakening.com/uploads/1/3/1/4/131437236/667910821bf1.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/1/0428/6572/1503/files/55503817053.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3407/4523/files/denadeximutimodowum.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/4620/5602/files/fepap.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2499/7800/files/palijogisenuzejovuveb.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/4648/5672/files/zurit.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/83759083977.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/2241/6029/files/24298537463.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4152/9762/files/sedibowibigugebetures.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/1556/0616/files/78196816481.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5083/5878/files/folotetewenarewetabason.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/potiwabuvufepatene.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5280/1954/files/tupuwupa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/4746/1788/files/49812599167.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5528/4378/files/45285780487.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 8

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_off00008015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8015 5636 bytes
SHA-256: 83fd38be9330caea889c4f2e19b973a891cc0a4a3641c290502e5218562e0ad9
font_01_sfnt_off0000931a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x931A 9912 bytes
SHA-256: 5ed3b0ff6df719db39cbe91c73474a0e0ba3e51ea78093d171803de8e4350b31

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