Malicious PDF — malware analysis report

Static analysis result for SHA-256 a1ab04635d8c5936…

MALICIOUS

PDF

36.5 KB Created: 2020-08-12 12:02:57 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 56b48cf04b4d718a6863d10fa078271c SHA-1: 4dd3d2c100094aee63ac2ef2c48d89e3cede790c SHA-256: a1ab04635d8c593675c66be01a1f5669c6cf32c100f94555a311043d964053db
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a significant number of embedded links, with one identified as a malicious redirector. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass of external PDF links, suggesting a link farm designed to manipulate search engine results or distribute malicious content. The primary malicious URL identified is https://ttraff.com/pify?keyword=owners+corporation+model+rules+pdf, which is likely used to redirect users to a malicious site.

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=owners+corporation+model+rules+pdf In PDF document text
    • http://files.emmetcd.org/uploads/1/3/1/4/131437633/tiwoxepu-disefagenatagil-dosopi.pdfIn PDF document text
    • http://files.fcadefuniak.com/uploads/1/3/1/4/131409264/2089233.pdfIn PDF document text
    • http://files.stowemusic.com/uploads/1/3/0/8/130874524/7595388.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/1/0428/9835/8432/files/rejumaxerufu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0568/9504/files/42121695639.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/4228/1371/files/91545277040.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/5131/0488/files/felavilubeze.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/4088/9242/files/download_adobe_after_effects_tutorials.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7304/4634/files/bojokusufojigesuge.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/8305/5782/files/gazadig.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3000/3358/files/angina_estable_y_angina_inestable.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/6794/6648/files/24488492915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5833/1799/files/lixobudipejafafamepunovod.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/6105/7438/files/lala_ramswaroop_calendar_march_2020_download.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/8724/0095/files/26491549951.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0225/5770/files/93849530631.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_off00005003.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5003 5420 bytes
SHA-256: 56d60f5d8866fac346fda0a0ad3c3e4e312cc0d5facdbfe81175351769c43fff
font_01_sfnt_off00006263.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6263 10188 bytes
SHA-256: 7b20f83edc1f6f7f7918a00b9e1576382729c103ce090a60db1697b3e70dda0b

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