Malicious PDF — malware analysis report

Static analysis result for SHA-256 39c196021a907ac0…

MALICIOUS

PDF

51.1 KB Created: 2020-08-23 12:39:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 42783a81f10e190c358a5cd1ff2f8805 SHA-1: 8ff0af8289ad7a002f9d95e1eb8e5cbd8ebc2994 SHA-256: 39c196021a907ac03857c58a03e062c5dfe238efd929d8a93c77c5161772c11d
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.002 Malicious Link

The PDF document contains a large number of embedded links, characteristic of a link farm, designed to direct users to external sites. One of the primary links leads to a known malicious redirector, ttraff.cc, which is likely used to obscure the final malicious destination. The document's body text, though heavily obfuscated, contains keywords like "Kendo grid template example" and references to wkhtmltopdf, suggesting a lure to disguise the 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.cc/pify?keyword=kendo+grid+template+example In PDF document text
    • http://files.coastalphotoclub.com/uploads/1/3/0/8/130874246/9644377.pdfIn PDF document text
    • http://files.morhistologylab.org/uploads/1/3/1/4/131411199/2be66a66213c.pdfIn PDF document text
    • http://files.collettivoverso.com/uploads/1/3/0/9/130969166/wafoduvidaru.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9468/7400/files/my_guidestone_login.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0458/6419/0105/files/hollywood_actor_rock_movie.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9597/3276/files/2569275449.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1359/3499/files/jomenoriraxexoni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8642/9861/files/56796452985.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3902/2494/files/sothink_swf_decompiler.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3664/7317/files/zafuxive.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000070d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x70D1 4928 bytes
SHA-256: c3108c3f59c0676c26021ca01823d9321589c995a397de6167b5af9db18695f2
font_01_sfnt_off0000817b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x817B 15256 bytes
SHA-256: c7373b0c979ab70f2a150a6c10a944473df1c09fba5f50c0403ebedbab3ca286
font_02_sfnt_off0000b19a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB19A 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

Open this report in the interactive analyzer, or submit your own file for analysis.