Malicious PDF — malware analysis report

Static analysis result for SHA-256 765fd4b7f84e4ddb…

MALICIOUS

PDF

78.5 KB Created: 2021-02-28 12:36:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05
MD5: bd7a099e0559c0fa491861de003782a1 SHA-1: 4a1af092eaa9669116425c128ababf0fe95ccd82 SHA-256: 765fd4b7f84e4ddba60e4fb27bcd93c8c1180bb1ccddcabf55b38d0a56cf33f3
154 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF contains a link to a known malicious redirector, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly support its malicious nature. Although no scripts were explicitly extracted, the PDF structure and embedded URLs suggest it's designed to redirect users to malicious content, likely for phishing or to download further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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.
  • 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/award?keyword=kenmore+washer+oasis+error+codes In PDF document text
    • http://dkblogin-de.best/30560719462atder.pdfIn PDF document text
    • http://duwibuzawo.22web.org/bejeje.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488116/normal_601a7d426bdb2.pdfIn PDF document text
    • http://feyakast.online/how_to_start_daphnia_culturejya3q.pdfIn PDF document text
    • http://freehookup.xyz/sample_of_blotter_report_pnpstqjj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482228/normal_601e73ef838fc.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483388/normal_5fc895764c50a.pdfIn PDF document text
    • http://bibiladiwoz.22web.org/87048340241.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372378/normal_601b702ed486e.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4476936/normal_5fe251a6cbab5.pdfIn PDF document text
    • http://sfr-webmail.com/butterfly_s_day_out_sheet_music5hxld.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/gofilafixu/is_instagram_reports_legit.pdfIn PDF document text
    • https://s3.amazonaws.com/takurugilij/aubrey_qwana_uhamba_nobani_video.pdfIn PDF document text
    • https://s3.amazonaws.com/sulasatevirexo/11544154710.pdfIn PDF document text
    • https://s3.amazonaws.com/pomaxa/narnia_3_sinhala_sub.pdfIn PDF document text
    • https://s3.amazonaws.com/fulazelof/bodikuzufefata.pdfIn PDF document text
    • https://s3.amazonaws.com/kikunojulejuj/idioms_anglais_franais.pdfIn PDF document text
    • https://s3.amazonaws.com/midipes/bosch_tas1402_tassimo_vivy_2_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/wogikokuzotaxa/dovukepupume.pdfIn PDF document text
    • https://s3.amazonaws.com/zibenoroduzuw/what_literary_devices_are_used_in_the_poem_the_road_not_taken.pdfIn PDF document text
    • https://s3.amazonaws.com/gavexilatuvitaz/fios_home_router_g3100_review.pdfIn PDF document text
    • https://s3.amazonaws.com/xeroguru/pajuxusazepotirazok.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_off0000f66f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF66F 5208 bytes
SHA-256: ecbc048c37d6dbf55a4cfbf4ab66ff96de883c7010f8366acf941a612b85a737
font_01_sfnt_off0001080c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1080C 10620 bytes
SHA-256: fc98234b7860595850250dd4aa1b115554a31127981ffc7a64e407ce467791ab

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