Malicious PDF — malware analysis report

Static analysis result for SHA-256 f03d38befea21504…

MALICIOUS

PDF

44.5 KB Created: 2020-08-02 16:15:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 365701c4db6217e823e10dab559cc9c2 SHA-1: f5739adc74230bb305227aab166fed09b3bded28 SHA-256: f03d38befea215041e5aea08f24b2b37cd8df673d8888538c91b2032eadbdf8b
194 Risk Score

Malware Insights

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

The PDF contains a large number of embedded links, many of which point to external resources. One critical heuristic firing indicates that the PDF links to known malicious redirector infrastructure. The document body contains the URL 'https://ttraff.ru/pify?keyword=drop+primary+key', which is likely the initial lure. The presence of a link farm suggests an attempt to obscure the final malicious destination or to leverage SEO techniques for distribution.

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/pify?keyword=drop+primary+key In PDF document text
    • http://files.thelinksconnection.com/uploads/1/3/1/8/131872273/pozus.pdfIn PDF document text
    • http://files.foresthillbaptistchurch.com/uploads/1/3/0/9/130969950/0631109.pdfIn PDF document text
    • http://files.davidfalkdesign.com/uploads/1/3/2/8/132815220/5221796.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/1/0435/5430/8245/files/ssh_into_github.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/34707652888.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6578/6006/files/ratalapagofapovavape.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9770/2046/files/63925104318.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/5494/0828/files/difibivubojeximokaduzad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7083/2291/files/vowibekitunojof.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0952/3355/files/jemotazubotelopebitifog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4529/6027/files/bufozise.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0700/0219/files/betupefanuwowunedadov.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/1819/7912/files/dozoradoduretiv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7729/5516/files/31293473157.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 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_off00005983.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5983 4920 bytes
SHA-256: 708c859faa8ca346d411ce5b4f906cee52c0078b1a54b10ed9e318f64c65f826
font_01_sfnt_off00006a3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A3A 10740 bytes
SHA-256: 865e81a9c4fda9457a9ee28574c2ee616ca32814020287c962d3685951306526
font_02_sfnt_off00008f0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F0A 16076 bytes
SHA-256: 72b50ce8393e6665d617349b385eb0c2ebfa959cff1463be065fa2826278273f

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