Malicious PDF — malware analysis report

Static analysis result for SHA-256 774d56301815eeb0…

MALICIOUS

PDF

41.6 KB Created: 2020-08-28 02:27:11 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90b4c17a0b90122a6f845ce3d6fcf05e SHA-1: 26d0c5f909d3df71eaf1d156d665b9bc33eb9f43 SHA-256: 774d56301815eeb010cbf13f3d8cd73176c0ec5e5c348c6cd0b9469885f1a35f
194 Risk Score

Malware Insights

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

The PDF contains numerous links, many pointing to redirector infrastructure, suggesting a link farm or phishing lure. The presence of a critical heuristic firing for 'PDF_MALICIOUS_REDIRECTOR_LINK' and 'PDF_SEO_LINK_FARM' strongly indicates a malicious intent to redirect users to harmful sites. The ML classifier also flagged this PDF with high confidence. While no scripts were extracted, the document body and embedded URLs point towards a phishing or scam 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.cc/pify?keyword=etz+hayim+torah+and+commentary+pdf In PDF document text
    • http://lulukimav.rockymountainadventureseries.com/uploads/1/3/0/8/130874285/2014555.pdfIn PDF document text
    • http://pawusi.driesneyland.com/uploads/1/3/1/0/131071258/41f9adcdc0a.pdfIn PDF document text
    • http://files.crabbymama.net/uploads/1/3/0/7/130739773/5111732.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/1/0427/9985/7823/files/tusegisufakigezuwanipowog.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/bihar_board_10th_time_table_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9835/8432/files/vuvitew.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/7870/4536/files/waw_resolution_crashes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1751/8751/files/81695742261.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7829/5450/files/41851984417.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5593/9733/files/61588426848.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/8669/0969/files/exponent_rules_practice_problems_worksheet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/1267/0111/files/cards_against_humanity_disney_expansion.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 6

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_off0000614a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x614A 5296 bytes
SHA-256: 2d794eb7c404ed2aa71e97c49c52fc6581d38aecc83c3b0ee115cd6599d26ecb
font_01_sfnt_off00007339.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7339 10828 bytes
SHA-256: 3556120db90768b4c82223312e748f5e09581a2fd4e0aefffe4f24bb417df396

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