Malicious PDF — malware analysis report

Static analysis result for SHA-256 54c4f37918665793…

MALICIOUS

PDF

33.9 KB Created: 2020-08-22 07:08:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-05-09
MD5: aa08f302535ca4f2e7f70cf9fb584011 SHA-1: 77957679610942768553d9f1149c746d3f1bf806 SHA-256: 54c4f3791866579310cdd5f44bdfb50edc43d038fa27442b63d321c8d2f6ff37
194 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded links, many of which point to redirector infrastructure. The primary redirector URL, 'https://ttraff.ru/pify?keyword=horn+blow+song+whatsapp+status+video', is flagged as malicious. This suggests the document is part of a link farm or SEO poisoning scheme designed to drive traffic to malicious sites, likely for phishing or malware delivery. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence indicate a 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.ru/pify?keyword=horn+blow+song+whatsapp+status+video In PDF document text
    • http://badezomes.gracebaptistlockport.com/uploads/1/3/1/6/131636648/8672001.pdfIn PDF document text
    • http://files.cardinalaviation.ca/uploads/1/3/0/9/130969659/munaxawozi-vepemaj.pdfIn PDF document text
    • http://pavom.diyslimestudio.com/uploads/1/3/0/9/130969754/tavebijudogoxikozem.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/1/0434/5282/5767/files/48909739527.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7851/6885/files/fomadonibulazozegetibe.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/3826/7809/files/bmw_troubleshooting_manual.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6295/9006/files/nabitasetobudir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/1599/4529/files/43833407172.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9331/9079/files/ginoka.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/2982/9544/files/maternal_newborn_child_and_adolescent_health.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/6279/5167/files/7588107274.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0462/2739/0615/files/ropukenujefetor.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/2913/4501/files/55984421820.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/0432/0154/files/fovuzuxuwa.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/9726/0192/files/22316743638.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/6032/0669/files/65438354625.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/5738/9472/files/mewufes.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0437/7051/1521/files/spanish_to_english_basic_words.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_off00004884.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4884 5472 bytes
SHA-256: 30d16caf9b551e680dac6fec73b8b2c5da9aebcfade5cb465c5f9db4c87993bc
font_01_sfnt_off00005b23.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B23 9144 bytes
SHA-256: 67326e6ed71a9a80a6203ca10b8393f09587fdb8c02897a5f9a48211b1c38c66