Malicious PDF — malware analysis report

Static analysis result for SHA-256 05b3c969771c02da…

MALICIOUS

PDF

42.1 KB Created: 2020-08-30 02:38:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: a45b1f4d8b5211bd6d89bca76269ee41 SHA-1: 031ea739c7804da5e337e16fd1d097197fb1e79b SHA-256: 05b3c969771c02da2340041c1ec3de9db10dc025c1dc3578bf30d7adbf0998cb
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for SEO-based phishing. The document body, though heavily obfuscated, contains text related to 'Gunsmith part 1 tarkov' and the malicious URL, suggesting a lure for users interested in this topic. The ML classifier strongly indicated maliciousness, and the presence of a malicious redirector link confirms a high likelihood of a phishing or scam attempt.

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/wix?keyword=gunsmith+part+1+tarkov In 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/1/0430/4994/3202/files/88400724448.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0081/4998/files/animation_movie_creator_software_free.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1046/4667/files/62142618294.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6509/5845/files/46322348035.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_5d787bbd8e0d44fdb1837c1c99718a4e.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/91e123_01c0569cda184c4bb7b396a68ffb8242.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_634d425dce084fbb89144d1740260d3d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/de65f7_bbaec988ce7e4ddd94ad6c76bcf7c4db.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6f58fb_386fba8426b3404d9cc9a5bb470695ae.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000058aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x58AA 6416 bytes
SHA-256: 2a69545f8a9d104697b847a0f548493cbc920d2d91a2c508c9ca03512f8941e1
font_01_sfnt_off00006874.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6874 5232 bytes
SHA-256: 16935c1975e5c12df28b25e05d62c1157800a3b9a08ad9756fe5ed6c2f807a18
font_02_sfnt_off00007a1c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A1C 9956 bytes
SHA-256: 4af39dbe6eac41bc127e06e43edd6ec9a5856e36003087b632b4c73cf3e6ca59

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