Malicious PDF — malware analysis report

Static analysis result for SHA-256 d33812a008e36bef…

MALICIOUS

PDF

35.5 KB Created: 2020-08-15 00:58:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 2f103fe247d59c323689691081995ea1 SHA-1: fd4a388f4292cd9d6d3ca293d8f955ba867bb7c8 SHA-256: d33812a008e36befe5522f6243f2b25807c3a19ddeeda744cf32b5ceb9415783
194 Risk Score

Malware Insights

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

The PDF was flagged by multiple critical heuristics for containing malicious redirector links and a large link farm. The embedded URL 'https://ttraff.ru/pify?keyword=arcturian+guided+meditation' is identified as a malicious redirector. The document body, though heavily obfuscated, also contains this URL and numerous other links, suggesting a coordinated effort to direct users to potentially harmful sites. The ML classifier strongly supports the malicious verdict.

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=arcturian+guided+meditation In PDF document text
    • http://files.shakeituptheatre.com/uploads/1/3/1/4/131410479/xakuxinudonikan_dobifepowesixa.pdfIn PDF document text
    • http://nibur.jennifereifrigauthor.com/uploads/1/3/0/7/130776046/wevaritavasotogilono.pdfIn PDF document text
    • http://files.twkdmsadvisory.com/uploads/1/3/2/3/132303269/79683f.pdfIn PDF document text
    • http://files.get2knowisi.org/uploads/1/3/0/7/130740591/tonideti-mimegozune-megemefadib.pdfIn PDF document text
    • http://subok.naturallyroyal.net/uploads/1/3/2/8/132814930/vumodudu-tetowosod-womomeba-biburove.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/1/0432/6470/4662/files/microbiologia_veterinaria.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8465/1423/files/juvelikelenuzapul.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6857/8210/files/91703051562.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/2521/0263/files/convert_file_to_microsoft_word_document.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/3081/4626/files/wolujimojijagotu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/6418/0390/files/37036620868.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6600/7445/files/judugovogikiro.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8721/6293/files/ruzatigonapad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8565/2375/files/51465070699.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/1673/9222/files/76250500518.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
🗂 Part of campaign: ipa-ok.com 5 samples

Related samples 5

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_off00004ce2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4CE2 5040 bytes
SHA-256: def2f459a86d258c421cf772c6f8b8b692534a63628a0d2d3e09eecb4d016c5d
font_01_sfnt_off00005de3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DE3 10288 bytes
SHA-256: c3889b0efe785d792a60b81278baf9856e083ddcd4fe6d56523f709f8e023e91

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