Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cec9cd9b781d16c…

MALICIOUS

PDF

49.8 KB Created: 2020-08-26 14:38:51 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 76298338b141ceb65293940c21e1d064 SHA-1: c7ba6b1765184076c32559e92dcdb62558e55fbf SHA-256: 7cec9cd9b781d16c5ab4fd46030dd64f2d491501f4e897df46ccb0c1e89b12ce
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 domain, masquerading as a download for a "Gundam astray red frame english manual". The heuristic firings indicate this is a malicious redirector and part of a link farm designed for SEO manipulation, likely to phish users. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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.com/pify?keyword=gundam+astray+red+frame+english+manual In PDF document text
    • http://xudaw.nickgatesart.com/uploads/1/3/1/0/131069759/a4324b.pdfIn PDF document text
    • http://dozetoro.vanderlegal.com/uploads/1/3/1/4/131438641/ladex-wilojudinotij-vunibaxazizu.pdfIn PDF document text
    • http://vusedu.mccreaproductions.com/uploads/1/3/0/9/130969744/rijizafowugijadu.pdfIn PDF document text
    • http://files.lhfuntravel.com/uploads/1/3/1/8/131858045/1830699.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/1/0435/2458/7674/files/63360586002.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/8280/0542/files/xuvumuxilitis.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/2210/6271/files/genero_literario_definicion.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0450/4082/8566/files/rekajud.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/2534/9283/files/batman_arkham_knight_poradnik_chomikuj.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0441/0392/5912/files/salodenebob.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/7620/6238/files/tiledinipukadumebiz.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0443/0485/9292/files/lagu_amelia_terbaru_2019.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9239/3640/files/ejercicios_resueltos_movimiento_rectilineo_uniforme_acelerado.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/6209/1167/files/nawobuxiloremabagef.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 3

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_off00007190.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7190 3628 bytes
SHA-256: 04b91524771fdf11cbb2e0db7f3ac5c7ac08d69f5a839b6854d67e4fba4c8848
font_01_sfnt_off00007e73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7E73 5456 bytes
SHA-256: cca866e95ff28407dddf96ca1a3dbec03195014a342f09f0e3ac4a406ae0b9f5
font_02_sfnt_off000090e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x90E0 12844 bytes
SHA-256: 6ff374e7bc0afb3abbe8fcc8fc0c72abab135c18aadd07b25609c582d5a9b238

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