Malicious PDF — malware analysis report

Static analysis result for SHA-256 5cc49397b6a15c8a…

MALICIOUS

PDF

46.6 KB Created: 2020-09-01 10:32:14 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 6b864a5a47e93eea74e47b5089b9c7cf SHA-1: 175ee177bff8c81471434a2f9dd5dafc54f138da SHA-256: 5cc49397b6a15c8a002e27dc22beaac4bf4c1b6458d120c9017742f79b0c0a00
202 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to known malicious infrastructure, specifically a URL designed to appear as a search result for free templates. The ML classifier strongly indicated maliciousness, and the presence of a redirector link confirms a phishing or scam attempt. No scripts were extracted, but the document's structure and embedded links suggest it's part of a phishing campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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=country+western+birthday+invitation+templates+free 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/7d1dc9_91840ad8e2354d5c986913759ceac2c9.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/5360f8_643799529d184c958f75310d432fb95c.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_bab90a2c16934972befaab0793c90418.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_37dda59325b84745b1f6d33c61e9f468.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/26481d_6070727657ab44c38b59fb55b07dccdd.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/0fdb6d_58169474ded6434c975831872303770a.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/c1615c_04b8233201374e87801b5c13b4ba9f91.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/3640/2079/files/vaxezogijama.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/7442/7806/files/54421921345.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7311/9143/files/88490504102.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/2c8d66_cbc434821ba84523b74d4b6583db3ee3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d2cebcae217b434ea6de0aeef9b1e0b3.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/cb2bed_d1771e504dcf4ac6a6fca26b3544d6eb.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_63e69173a194444a94af18c03d77571b.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005fd1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD1 5580 bytes
SHA-256: 93e9bd89f2e6ed32dcc62baf1f9ccd9a654a993238f049638cf1d24ecebb9ea9
font_01_sfnt_off000072b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x72B3 10452 bytes
SHA-256: f52f8b9347c933894ec7653069261c87fab1c7868c8b532fc676e73dfb31db19
font_02_sfnt_off000096c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96C7 16448 bytes
SHA-256: 4972c892cf783310df7ebe7a43044f7b4e4d650808add06809858f2f0e6eeb09