Malicious PDF — malware analysis report

Static analysis result for SHA-256 3622f59d12e6ca6a…

MALICIOUS

PDF

42.1 KB Created: 2020-08-20 07:33:47 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-07
MD5: 21f5906a6da06c811ef5a45c0d164227 SHA-1: e9ec16b055388181ea24405ab810b518f51473c7 SHA-256: 3622f59d12e6ca6a7c649fea8e3ef5d1bcf88e1e60da8aa0457c4ad02288b980
194 Risk Score

Malware Insights

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

The PDF contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.cc/pify?keyword=asphalt+game+free++for+java', is designed to lure users with the promise of a free game. The PDF also features a link farm heuristic, indicating a large number of external links, many of which point to potentially malicious or unrelated content. The ML classifier strongly supports the malicious nature of this PDF.

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=asphalt+game+free++for+java In PDF document text
    • http://xuwitoror.nikhilchari.com/uploads/1/3/2/6/132682137/6146515.pdfIn PDF document text
    • http://doselofe.mountaintechnicalsolutions.com/uploads/1/3/2/6/132696067/437f979bba74698.pdfIn PDF document text
    • http://lidivu.deshues.com/uploads/1/3/0/9/130969317/wubaruvakobugi.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/1/0437/1690/3080/files/zasogikepekod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9249/2963/files/fozememo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/5917/3784/files/juvenile_idiopathic_arthritis_adalah.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2920/8992/files/muzupox.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2349/0457/files/fiketivumenuxeji.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2619/4336/files/67710455734.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/6878/2757/files/88355023587.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6332/8424/files/15896526221.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0455/3664/1189/files/48196970848.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 5

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_off00005b36.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B36 5440 bytes
SHA-256: bf72a5738a2546334e32114ecb66c4e68f1e306b2d269b0035c2db39164055fe
font_01_sfnt_off00006da3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DA3 14368 bytes
SHA-256: 225cd7208bb7ce7ee11c93b1077b13297d9af0abebbdbb6f46ed49e7aae8be3b

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