Malicious PDF — malware analysis report

Static analysis result for SHA-256 2382865ccf53100a…

MALICIOUS

PDF

47.4 KB Created: 2020-08-21 21:46:54 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 621d02f2525f0da37651fa7902acb5ca SHA-1: 92ee1311a994f2bfae911e300654c84c4df03b1e SHA-256: 2382865ccf53100ac5bdbe2c1c47973fbdd540bcce8aa0b2bc3e541dbf64ec17
194 Risk Score

Malware Insights

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

The PDF file contains a heuristic firing for a malicious redirector link, which is also present in the document body. This link, 'https://ttraff.ru/pify?keyword=formal+email+writing+examples+with+attachment', is designed to lure users into clicking it. The file also contains a large number of embedded links, many pointing to Shopify domains, suggesting a link farm or SEO poisoning tactic. No scripts were extracted, but the presence of a malicious redirector indicates a phishing or social engineering attempt.

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=formal+email+writing+examples+with+attachment In PDF document text
    • http://todij.borealisbiological.com/uploads/1/3/0/8/130814297/7870076.pdfIn PDF document text
    • http://files.loveshantea.com/uploads/1/3/0/7/130740385/5469816.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/1/0461/8459/5610/files/91781439829.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/7130/5896/files/statistical_analysis_with_missing_data_second_edition.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6997/2392/files/busarukasatobaj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3456/5025/files/nategowazifopepedijilojo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7620/6240/files/tratamiento_absceso_pulmonar.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4827/9970/files/3151597804.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6307/3181/files/749546216.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5385/0528/files/36000800081.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/20745245188.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/2359/7725/files/vozabekivatiteno.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7405/1493/files/debewulafunajifixopoxusi.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007227.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7227 5460 bytes
SHA-256: 998344c3b021154aa096b0b6a75b493fb6963ee75d223842225e057dd7db56b2
font_01_sfnt_off0000849b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x849B 1800 bytes
SHA-256: daad3f347a4f42f432ee9983e619a7c063e36761dba5934b469418034847e28e
font_02_sfnt_off00008d29.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8D29 10192 bytes
SHA-256: bb837fdd9266119235772d9b86a872cb56f151550d41cfa38fce2949c532e141

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