Malicious PDF — malware analysis report

Static analysis result for SHA-256 64112a5c320e000a…

MALICIOUS

PDF

53.7 KB Created: 2020-09-02 14:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 51651e1d42ab9e30c558fca8e46273f8 SHA-1: ba8df1bd1d00dfe53e89070dcf1655b39ccceeae SHA-256: 64112a5c320e000a341dc62da647cdfb12e1e90ef2549845eff81f5ecb873fc1
194 Risk Score

Malware Insights

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

The PDF contains numerous links to external resources, with a critical heuristic identifying a link to a known malicious redirector. The document body, though heavily obfuscated, contains a URL that appears to be part of a lure for software downloads. The presence of many links suggests an attempt to distribute or redirect users to malicious content, potentially via a phishing or social engineering scheme.

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.me/wix?keyword=autodesk+inventor+2015 In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_c207b765a0f34def87e54e84cc07233c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/9ff9b8_046bbe880ae94bbba8c1208b658a585d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/82e28d_85edd3cb241b4e36b4707dd7bcb80168.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/ac72e0_b9adfc93ce8142fb9cdfbf1289fdadfa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9372/1255/files/jozibogu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/8480/8346/files/avs_video_editor_gratis_full.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_ffe4bb5b60d44115a28d07a42d7f2c23.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/6cfc61_7ca647442d694888b524bbc6795d10f8.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_7ca9236a8cce4246a9ea33e387d48a58.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/83b1b3_e1acc616816f4861abf29a2af94131fb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/96564c_4986bb7cf2f642f387975d2727b48136.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/4826f5_ca1fb9d8a75b4533a2bdefc0145574e5.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
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
🗂 Part of campaign: shared payload 5054759e74 3 samples

Related samples 2

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000675e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x675E 5588 bytes
SHA-256: 191ec8c6894a100b4603f18c7ef5eae98bef8d3dcfaa91d0bd98be4aa091a59b
font_01_sfnt_off00007aeb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7AEB 5140 bytes
SHA-256: 8c0c4c9639ae493c2c1021589b90215708903a6b0c57922b0f7489764f66d046
font_02_sfnt_off00008c93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8C93 11352 bytes
SHA-256: 61bdd483fa709bbed8c5522bf8c83fd1e0051538e625cb213690d45719c6b66f
font_03_sfnt_off0000b2d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB2D0 16184 bytes
SHA-256: 5054759e749bb734e938049909294a60eaad07ab0164109f83ab043c3dba66fe

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