Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b02eac784f692c2…

MALICIOUS

PDF

73.0 KB Created: 2021-02-22 06:48:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: 19f89fb9ebe1d4bc14e7e2546d6f4891 SHA-1: 38b371cc06a9e251a790bee1f24685bb5b700d36 SHA-256: 6b02eac784f692c24b32d1a94817c806ed6eda450baeb1848b540dbc3869e4eb
194 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF file was flagged as malicious by multiple heuristics and an ML classifier, indicating a high likelihood of malicious intent. It contains a link to a known malicious redirector, https://crophysi.ru/strik?utm_term=crosley+record+player+wont+turn+on, which is likely used to deliver a phishing page or a second-stage payload. The document body, though heavily obfuscated, suggests a lure related to a "Crosley record player" to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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.
  • 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://crophysi.ru/strik?utm_term=crosley+record+player+wont+turn+on In PDF document text
    • https://cdn.sqhk.co/reruzemafow/jQIeGkB/shopdisney_baby_yoda.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459329/normal_5ff7f08be9e4b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471688/normal_5fe465cec3278.pdfIn PDF document text
    • https://cdn.sqhk.co/todusukiraxi/mOggjgr/96523544706.pdfIn PDF document text
    • https://cdn.sqhk.co/zipodumup/Tr80gdq/20976786052.pdfIn PDF document text
    • https://cdn.sqhk.co/jagibuvat/R4Ridji/make_new_caption_property_access.pdfIn PDF document text
    • https://cdn.sqhk.co/mepofazobi/hjYif59/eva_popiel_kid.pdfIn PDF document text
    • https://cdn.sqhk.co/miwavilusaji/cnKdgia/vasp_spin_orbit_coupling_incar.pdfIn PDF document text
    • https://cdn.sqhk.co/fumamimed/cldQ4ic/86539267851.pdfIn PDF document text
    • https://cdn.sqhk.co/vimewiki/hhNwTsq/crazy_funny_alarm_sounds.pdfIn PDF document text
    • https://cdn.sqhk.co/kixowijeka/8XMLqNO/fapatojuv.pdfIn PDF document text
    • https://cdn.sqhk.co/todiwapubu/0icgjha/17153260358.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4453890/normal_5fc8c82c6ef3e.pdfIn PDF document text
    • https://cdn.sqhk.co/regavebike/UqihVha/12934312631.pdfIn PDF document text
    • https://cdn.sqhk.co/tezofugowura/fmwdiHp/twitter_downloader_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/toridezoxiko/ohhgeLG/fallout_shelter_sign.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417023/normal_60267f5b7032e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xukenefurirog.epizy.com/lucifer_vertigo_comics_complete.pdfIn PDF document text
    • https://s3.amazonaws.com/zuponefi/26595006554.pdfIn PDF document text
    • http://jojugabijogi.rf.gd/2005_malibu_starter_location.pdfIn PDF document text
    • http://julivaradisakit.rf.gd/bisetuxal.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_off0000e118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE118 5168 bytes
SHA-256: 44ad54b06d8636b5470725c9104896a242e232496372bc5ef2b30d381e0505be
font_01_sfnt_off0000f2cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2CD 10628 bytes
SHA-256: b6063aef7815955e244027ff60d187a2e24d3fbaf7fa2cba897b432c30ce321b

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