Malicious PDF — malware analysis report

Static analysis result for SHA-256 02dcfd4761f8eccb…

MALICIOUS

PDF

56.3 KB Created: 2020-08-20 03:03:34 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: c08fe2f5acfdf185bb92946246bc176b SHA-1: 608a3afe09cadabbfe912ea14df8ccb9b523527c SHA-256: 02dcfd4761f8eccb6f335317ca95291c185d130cfbc279621258a944fa2a64d4
194 Risk Score

Malware Insights

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

This PDF document contains a link farm designed to appear as a legitimate download source, but it redirects to known malicious infrastructure. The primary redirector URL is https://ttraff.cc/pify?keyword=formal+and+informal+email+writing+examples+pdf, which is flagged as malicious. The document's structure and embedded links suggest a phishing or malware distribution attempt, likely using a social engineering lure to trick users into downloading further malicious content.

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.cc/pify?keyword=formal+and+informal+email+writing+examples+pdf In PDF document text
    • http://files.kreativtouch.com/uploads/1/3/1/6/131637218/varaweralefemurubu.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/1/0430/0711/5423/files/gafotozelejotuwumomuli.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8519/3625/files/galaxy_s9_data_sheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/1481/5901/files/50823654512.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9875/1641/files/rizarebot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4708/7262/files/bubblegum_crisis_rpg.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/5104/9370/files/28216655063.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/8766/7104/files/2012_returns_full_movie_in_tamil.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1522/4996/files/migufobepapotapog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/0136/3107/files/relete.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/9825/7048/files/tinesuruva.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 4

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_off0000903a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x903A 5476 bytes
SHA-256: cb0edff61f3a6e6eab01a239d8e5e446fe43a94d30c0cbcd6cfd406bf292988e
font_01_sfnt_off0000a2da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA2DA 15372 bytes
SHA-256: 8347aec123bdefdecd3c7f4915deff54bf9ed401baa64475e3e4ddfdab14adf5

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