Malicious PDF — malware analysis report

Static analysis result for SHA-256 be12ad025d3393d2…

MALICIOUS

PDF

49.1 KB Created: 2020-08-06 02:55:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 69a2f22a3ccc2a012b7dc067532bdca3 SHA-1: fa59b40a37fe2275512cd3c4093f2ab0a51f10de SHA-256: be12ad025d3393d2fd74b9dbe7b4f92215da683751d7c00eed153e9ca5f69fa6
194 Risk Score

Malware Insights

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

The PDF contains a link farm designed to direct users to a malicious redirector at `https://ttraff.ru/pify?keyword=list+of+all+collective+nouns+pdf`. This is a common tactic for SEO poisoning and phishing campaigns. The document body itself is heavily obfuscated but appears to contain the same URL and other benign-looking PDF links, likely to bolster the SEO poisoning 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.ru/pify?keyword=list+of+all+collective+nouns+pdf In PDF document text
    • http://files.industrialbling.com/uploads/1/3/1/4/131406391/togakalo.pdfIn PDF document text
    • http://files.windowsofatlanta.com/uploads/1/3/1/4/131407655/62846ed44b43afa.pdfIn PDF document text
    • http://files.solreta.com/uploads/1/3/1/1/131164552/bufipesibolapoxafu.pdfIn PDF document text
    • http://files.katekisscoaching.com/uploads/1/3/1/4/131437491/xazuj.pdfIn PDF document text
    • http://morutudo.reginaldart.com/uploads/1/3/0/8/130873826/1db97f4f6136.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/1/0434/2687/3509/files/letterhead_format.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0091/2278/files/16166390596.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7249/5524/files/mosusujisunefuzujapub.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/7341/3028/files/73269745915.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/3957/2643/files/kikowabaje.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/1405/4300/files/macos_restart_vnc_server.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1865/7703/files/nulefodezudad.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/1338/9992/files/21096128159.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9209/8716/files/bapuferuvexogujedakopo.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/4929/5776/files/zibogow.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/8987/9445/files/31095787462.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7896/7703/files/20808522588.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 7

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_off000078ae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78AE 5056 bytes
SHA-256: d2e4d01bb05882bcc51843227a4a8e8f05edf3a933268cd557c829358691e27c
font_01_sfnt_off00008a04.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A04 14088 bytes
SHA-256: 46549a1c83e12eadb3fa14f424029dcb25c6694f6b108c09a8c918455009d5fe

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