Malicious PDF — malware analysis report

Static analysis result for SHA-256 2f0a86f73322d8ea…

MALICIOUS

PDF

71.6 KB Created: 2021-02-24 18:35:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 287e00131e500372a1e74650f34f24f4 SHA-1: 4580fd9fcd7b1ac37a729a29cde284b71594b2c4 SHA-256: 2f0a86f73322d8ea149dbab6e2f1b0cfbd3e9c43386b11a88d30d5e7c1348936
254 Risk Score

Malware Insights

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

This PDF document contains a large number of embedded links, many of which point to a redirector service. The primary malicious URL identified is https://yafferge.ru/strik?utm_term=perry+handbook+espa%25C3%25B1ol+pdf, which is flagged as a malicious redirector. The document's structure and link farm suggest a phishing or scam attempt, likely aiming to direct users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 6

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://yafferge.ru/strik?utm_term=perry+handbook+espa%25C3%25B1ol+pdf In PDF document text
    • https://fabirakarag.weebly.com/uploads/1/3/2/7/132710689/2418005.pdfIn PDF document text
    • https://wisevagidigo.weebly.com/uploads/1/3/0/7/130740356/804c0bfe56.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4405953/normal_5fdcbfc95552c.pdfIn PDF document text
    • https://pibezenasa.weebly.com/uploads/1/3/1/4/131454503/zokibixugudidivu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4487631/normal_5fc88450b9640.pdfIn PDF document text
    • https://rafunipigadim.weebly.com/uploads/1/3/1/3/131380466/4982859.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476432/normal_5fe9c3f534621.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/taturi/88999364212.pdfIn PDF document text
    • https://s3.amazonaws.com/vapite/49741369803.pdfIn PDF document text
    • https://s3.amazonaws.com/taguxif/adobe_illustrator_watercolor_brushes_free.pdfIn PDF document text
    • https://s3.amazonaws.com/nagudo/how_to_start_a_career_in_network_marketing.pdfIn PDF document text
    • https://s3.amazonaws.com/gekojulog/peluronizofibuguku.pdfIn PDF document text
    • https://s3.amazonaws.com/turip/20394892546.pdfIn PDF document text
    • https://s3.amazonaws.com/gulapore/phool_bane_angaray_hd_movie.pdfIn PDF document text
    • https://s3.amazonaws.com/zisulamisozoto/google_academico_tesis.pdfIn PDF document text
    • https://s3.amazonaws.com/wanasuvedigo/beyonce_mtv_single_ladies_performance.pdfIn PDF document text
    • https://s3.amazonaws.com/tarajix/29027533057.pdfIn PDF document text
    • https://s3.amazonaws.com/tikoweravisixu/refeka.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/usda_full_form_food.pdfIn PDF document text
    • https://s3.amazonaws.com/fokapikow/minecraft_cracked_team_extreme_launcher.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cdc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCDC1 3016 bytes
SHA-256: 6b1886100909a5777bb30fc7b7be00bba8ed48ad5f5b392b7a0cb4783a0739ac
font_01_sfnt_off0000d87b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD87B 5648 bytes
SHA-256: ed266b98ff7725c33ce7f92d0d986ad9b8b42ac69931efd56b92e36eb1f6a293
font_02_sfnt_off0000eb67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEB67 10492 bytes
SHA-256: 76b813bc94e12a44733ac40d834dddb718fb774f2b3c01d77dd142b0eb72181c