Malicious PDF — malware analysis report

Static analysis result for SHA-256 0acd7e1959262f99…

MALICIOUS

PDF

37.5 KB Created: 2020-08-27 23:22:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 90ed50f24ff7003de310d0201528e98e SHA-1: ad327b953d2608c47779bdb3b802a938381d8c4b SHA-256: 0acd7e1959262f997b820617bc94017e99249e493001f97d68b32908b7ddf96c
194 Risk Score

Malware Insights

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

The PDF contains embedded links that redirect to a malicious URL, identified as a redirector for phishing or malware distribution. The document body and heuristics indicate a lure related to a torrent download, aiming to trick users into clicking the malicious link. The ML classifier strongly supports the malicious nature of this PDF.

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=touchdown+2+cause+hell+torrent In PDF document text
    • http://files.prosenation.org/uploads/1/3/0/7/130776478/dogagexizekis_lipokiwasexaw_lafosizej_vasodarafux.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/1/0439/4686/8891/files/42187823113.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6407/3128/files/pemex_business_plan_2020.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2931/5229/files/gene_therapy_for_inherited_disorders.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/3377/9611/files/65916656486.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/6428/7381/files/free_printable_math_worksheets_7th_grade.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/0687/7080/files/kenetawibonilolususede.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/0567/2597/files/adding_text_to_online.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5502/2234/files/bidot.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/9512/0289/files/free_chess_books_online.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000054a1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x54A1 5200 bytes
SHA-256: 94bf0f1c4ba0ec25e6cc78593a3db5fa4962570b82524dca551c3068ac32b5da
font_01_sfnt_off00006654.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6654 10148 bytes
SHA-256: 5cfed0a32165d774aa8aee41914835aff90692ac08e77eb8315bc1fe5bf539f5