Malicious PDF — malware analysis report

Static analysis result for SHA-256 047c93b0ad64f729…

MALICIOUS

PDF

74.0 KB Created: 2021-02-12 16:41:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d16cfde403ab96a38d09aabff971d825 SHA-1: be16d8dacdced21ddba0d85a8d3d7294aabe9fcf SHA-256: 047c93b0ad64f729e18eb08ee17f500335c0b3261ee6ea11972ff2037d4526e2
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file contains a heuristic indicating it's a phishing lure, redirecting to an external URL. The ML classifier and ClamAV detection strongly suggest malicious intent. The embedded URL `https://bologen.ru/wix?keyword=slow+is+smooth` is the primary indicator of compromise, likely leading to a phishing page or malware download.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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://bologen.ru/wix?keyword=slow+is+smooth PDF link annotation
    • https://s3.amazonaws.com/dedinavesute/sejimufudogop.pdfIn PDF document text
    • https://s3.amazonaws.com/wipotegadodorek/green_revolution_in_india_upsc.pdfIn PDF document text
    • http://fegudifo.22web.org/android_tv_version_4._4._2.pdfIn PDF document text
    • http://fifamarketbot.com/wusumaduzofuzizesqtsw.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382773/normal_5fee3de796fc8.pdfIn PDF document text
    • http://rm-swis-mine.com/3644769285391v9n.pdfIn PDF document text
    • https://s3.amazonaws.com/garorowa/dark_souls_4_kings_guide.pdfIn PDF document text
    • http://reestr.site/cavernous_malformation_spine_symptomswxv34.pdfIn PDF document text
    • https://s3.amazonaws.com/jusuberu/angry_birds_transformers_apk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367645/normal_5fe6327cd11c0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4420761/normal_5ff62e63e47b9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4403428/normal_5ff76480e19c1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4378379/normal_5fdf2d257a695.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/complete_key_for_schools_workbook.pdfIn PDF document text
    • http://volamejabevakik.22web.org/enlaces_covalente_polar.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410006/normal_5ffaed86a982e.pdfIn PDF document text
    • http://andyhongdigital.com/dc_comics_wiki_lucifer15wqm.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
    • http://lebofimuvi.rf.gd/cakephp_form_input_disable.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dbaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBAF 4376 bytes
SHA-256: eb67a823aa7d8beeae8ad0835a9c9e42af9c57229ba9243fdfb8f733d92c9396
font_01_sfnt_off0000ea8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA8E 9940 bytes
SHA-256: 776089dd67456559fe16d2c5a6959530c74bb89bfb93386ca945dfc49588119f
font_02_sfnt_off00010c8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C8A 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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