Malicious PDF — malware analysis report

Static analysis result for SHA-256 2787783ed418b490…

MALICIOUS

PDF

89.8 KB Created: 2020-08-30 05:00:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: 9faccd3c5b1ebd5b82cebd5e1a6d319a SHA-1: c7694a7982f81bcfb1ff58dfa38c1d547dcf9cd9 SHA-256: 2787783ed418b4906fe2b35e3d9ce3443a188dfc177a6cda1195a89bd5a0afee
194 Risk Score

Malware Insights

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

The PDF file contains a critical heuristic firing for a malicious redirector link, which is also present in the document body. The link points to 'ttraff.ru', a known malicious domain. The file also exhibits characteristics of a link farm, with numerous embedded URLs, suggesting a broader campaign to distribute malicious content. The ML classifier strongly indicates maliciousness.

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=wow+disc+priest+guide 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_3d6b61e60e3f448f8a4c378df59dd932.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/38bf1f_332da158df5d473db79043cd17dd401d.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_92eaa75140484a6493d9ee34bbaab957.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/d55797_24d6dcaab3ba495080906e14209be268.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6954/6396/files/63283860773.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/2165/5464/files/articles_on_equity_analysis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7573/1616/files/97747840586.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3124/8541/files/87342975065.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/85450973079.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_42c352870c6d464aa2ba5c4fa26692ff.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_65ba4661c4114ae5b19122fcf15efaec.pdfIn PDF document text
    • https://static.usrfiles.com/ugd/b8c837_d444418520d14a84a5d78672c35875bc.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

Related samples 4

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_off00010e5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10E5F 5104 bytes
SHA-256: 342ea2661ff46eb1c41b56f1bccf4b8a193035647a6f9bc3068d053a3a0ddff4
font_01_sfnt_off00011fed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11FED 10864 bytes
SHA-256: 33a6ee52302e4ea94e11863ef4e645f039115a5e6d492d7dde99611d2981cdaa
font_02_sfnt_off0001453f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1453F 16096 bytes
SHA-256: 37e7e7e9114bd13ff8332e6897528b8343bfbb4b2dd84d96d31ee0d9080a0a97

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