Malicious PDF — malware analysis report

Static analysis result for SHA-256 388491d6ae60eca7…

MALICIOUS

PDF

46.4 KB Created: 2020-08-08 01:16:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-08
MD5: 5e2f6a2e39f4e29ed97a8609bfc39041 SHA-1: e088cd15904a4b86701fcc817ced7ffaf3e2f922 SHA-256: 388491d6ae60eca7d60e47347f3c22a754612e9b574af94a4cceed73d112fa8f
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell T1204.001 Malicious Link

The PDF file contains multiple embedded links, with a critical heuristic firing for a malicious redirector. The primary malicious URL identified is `https://ttraff.ru/pify?keyword=animisme+dinamisme+pdf`. Another heuristic indicates a link farm, with `https://cdn.shopify.com/s/files/1/0428/9835/8432/files/mulobovapu.pdf` being the first listed. The document body appears to be heavily obfuscated or corrupted, but the presence of these links strongly suggests a phishing or malware delivery 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=animisme+dinamisme+pdf In PDF document text
    • http://lokajasav.katietoombs.com/uploads/1/3/2/7/132710712/dikadurazaruda.pdfIn PDF document text
    • http://files.boostyourbodybootcamp.com/uploads/1/3/2/3/132303028/1144462.pdfIn PDF document text
    • http://files.reusserland.com/uploads/1/3/0/8/130874189/zijubomumunisiwus.pdfIn PDF document text
    • http://botemese.birdsofafeathershoppetogether.com/uploads/1/3/2/7/132710703/paxesezabe_pevekeper.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/mulobovapu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6894/7616/files/256979656.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0728/7197/files/catalyst_athletics_book_of_programs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6043/5873/files/21188918817.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/8436/5468/files/sevukasoxezavivipa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/9914/2810/files/wosepuvuzisuvema.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0428/9291/8947/files/16080962444.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/2175/4787/files/sanuvewuni.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/4964/7270/files/tuvopib.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0436/1102/9666/files/42862604319.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/0233/9232/files/benijoratugabirove.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/0801/6027/files/77223537418.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_off000078cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78CC 5048 bytes
SHA-256: 62810387bde6633eee998b21518c374ffdf0a89988782d919eca504bac977ae9
font_01_sfnt_off000089ea.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89EA 10316 bytes
SHA-256: f625305c804f5fee0ff4b5b94e4d5bc8b9d3a49a170cfa0b0f157c66d22420a2