Malicious PDF — malware analysis report

Static analysis result for SHA-256 91716aed68a62711…

MALICIOUS

PDF

42.5 KB Created: 2020-07-27 17:26:32 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: f702f3b43a5fa6a8915376fcbd643f3d SHA-1: bffe98c787babeb10a9c75e858b68e1e442f73d9 SHA-256: 91716aed68a62711562e661749a72566061dd9c9ccf8db2ed64105f82d2e346f
202 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.001 User Execution: Malicious Link T1059.001 PowerShell

The PDF file contains multiple embedded links, with one identified as a malicious redirector. The document body, though heavily obfuscated, suggests a 'donation request template' lure, combined with a 'download button' heuristic, indicating a social engineering attempt. The primary malicious URL identified is ttraff.ru, which redirects to a page related to donation requests. The presence of a large number of external PDF links, many hosted on shopify.com, suggests a link farm designed to obscure the final destination.

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/pify?keyword=donation+request+template+free In PDF document text
    • http://files.canaanchristianministries.com/uploads/1/3/1/4/131438234/fuluwuxigaj_jurobo_sewoje_mazexemozokobu.pdfIn PDF document text
    • http://files.baumanlaser.com/uploads/1/3/0/8/130874110/datoniko.pdfIn PDF document text
    • http://files.blacksheepsalonfl.com/uploads/1/3/1/4/131437633/kufiwetulirisesajok.pdfIn PDF document text
    • http://files.youchoimd.com/uploads/1/3/1/6/131637254/6cd7570a14c5cc.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/1/0430/2969/2577/files/geforokuv.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7372/4825/files/mawuvigase.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0080/7074/files/gepiwe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9026/4742/files/linolif.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4837/8266/files/24373574613.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5548/0981/files/306504037.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7111/1330/files/fegiduselusatoxojosokofu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/98012128422.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/tefukina.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/49816413057.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

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000691a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x691A 5052 bytes
SHA-256: fe2819572097d2062e3e4c05e894a60d3bd9578cd646670c1d3d2b722935fdbc
font_01_sfnt_off00007a2d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A2D 10168 bytes
SHA-256: 5abf52019e22f64b8336d117e80dd8fdbe3c0e8ac2d580797c537daef23f8101

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