Malicious PDF — malware analysis report

Static analysis result for SHA-256 c72dc12c2f93202a…

MALICIOUS

PDF

45.7 KB Created: 2020-08-08 23:11:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5b46434f642029864977e43435d44b33 SHA-1: ddf32d771be022208081071b30dce3ae3b2d180f SHA-256: c72dc12c2f93202ab6fafdd197854be55d28d815a3d1d7faae5c1e7b64873853
194 Risk Score

Malware Insights

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

The PDF file was flagged for containing a malicious redirector link and a large number of external links, suggesting a link farm or phishing lure. The primary malicious URL identified is https://ttraff.ru/pify?keyword=consecutive+interpreting+pdf. While no scripts were extracted, the presence of numerous links points towards an attempt to direct users to potentially harmful external resources. The document body contains garbled text and embedded URLs, reinforcing the link-based attack vector.

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=consecutive+interpreting+pdf In PDF document text
    • http://files.asa-dc.org/uploads/1/3/0/8/130813988/lukunesimugij.pdfIn PDF document text
    • http://files.cbaannualmeeting.com/uploads/1/3/1/3/131398540/kataguwosor.pdfIn PDF document text
    • http://files.companionsofchrist.org/uploads/1/3/0/9/130969375/3234800.pdfIn PDF document text
    • http://files.holytemplec.org/uploads/1/3/1/4/131453598/zaxopoxudito_mogogodabuga.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7165/8389/files/72605259668.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/0986/7929/files/72840845121.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/3681/9104/files/8_week_muscle_building_workout_plan.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6718/7108/files/stewart_calculus_book.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/6230/5702/files/51952001537.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3881/8982/files/79722188267.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5018/0503/files/senaxowuxam.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/4361/8969/files/linear_and_nonlinear_functional_analysis_with_applications_ciarlet.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/5259/6374/files/83692207.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_off000066ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66ED 5044 bytes
SHA-256: 3887010f3b008b682dedb15ca43be6bfa3bfdb46b6f1d5563d95e671b8b25ccb
font_01_sfnt_off0000782d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x782D 10432 bytes
SHA-256: d7892a414be154b61f6ee7f1eab3d81aee10f915070785329c8eeeafb2a7a992
font_02_sfnt_off00009bc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BC8 4324 bytes
SHA-256: b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c

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