Malicious PDF — malware analysis report

Static analysis result for SHA-256 641d9f284413407c…

MALICIOUS

PDF

178.9 KB Created: 2021-05-26 02:40:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9acd960417776c31cf10d1bc5bc2b859 SHA-1: 2b2abbcb0566e9834a161c00858f50553bd5643f SHA-256: 641d9f284413407cc08c640dd6616f073a8e3a1952aec126b9a2d1550e30d105
136 Risk Score

Malware Insights

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

The PDF file contains a lure related to 'Chiranjeevi old songs audio video telugu' and a high-severity heuristic firing for 'PDF_SEO_UTM_REDIRECTOR_LINK', indicating it's designed for phishing or malware distribution. The embedded URL https://kuzutuzo.ru/strik?utm_term=chiranjeevi+old+songs+audio+video+telugu is the primary indicator of compromise. The ML classifier and ClamAV detection further confirm its malicious nature.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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://kuzutuzo.ru/strik?utm_term=chiranjeevi+old+songs+audio+video+telugu PDF link annotation
    • https://s3.amazonaws.com/bepukuba/satta_king_desawar_gali_ki_report.pdfIn PDF document text
    • https://s3.amazonaws.com/zafibimutadoti/it_chapter_2_final_trailer_music.pdfIn PDF document text
    • https://rofupujo.weebly.com/uploads/1/3/4/3/134335987/lukiwujiz-rexenuf-vujatomofur-junemujumoxesu.pdfIn PDF document text
    • https://s3.amazonaws.com/tanikanaw/tasazesirip.pdfIn PDF document text
    • https://s3.amazonaws.com/fapaga/simon_chimbetu_tenda.pdfIn PDF document text
    • https://walafikug.weebly.com/uploads/1/3/2/7/132740659/572d36ad87.pdfIn PDF document text
    • https://s3.amazonaws.com/rozebofukixus/agbada_formation_niger_delta.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473322/normal_602d4135a8dbd.pdfIn PDF document text
    • https://jaligudupu.weebly.com/uploads/1/3/5/3/135391073/5987716.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461744/normal_60109e5933183.pdfIn PDF document text
    • https://s3.amazonaws.com/benuka/fozabuxusol.pdfIn PDF document text
    • https://powirubojeti.weebly.com/uploads/1/3/1/4/131482959/3561293.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4458614/normal_5fe98e1f54c16.pdfIn PDF document text
    • https://ligelonajoka.weebly.com/uploads/1/3/1/4/131407163/7376f0f389.pdfIn PDF document text
    • https://s3.amazonaws.com/bejenosugede/presto_16_qt_pressure_canner_gasket.pdfIn PDF document text
    • https://s3.amazonaws.com/dezajok/71858642295.pdfIn PDF document text
    • https://sitegevom.weebly.com/uploads/1/3/4/6/134664280/meruvujimalokes.pdfIn PDF document text
    • https://s3.amazonaws.com/lakadutof/46684545178.pdfIn PDF document text
    • https://s3.amazonaws.com/bidemewufa/honda_express_for_sale_ebay_uk.pdfIn PDF document text
    • https://s3.amazonaws.com/wapabefizosumi/calendar_septembrie_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/wizomoravazub/program_samsung_tv_remote_for_lg_blu_ray.pdfIn PDF document text
    • https://solupufaposedi.weebly.com/uploads/1/3/1/8/131857421/cf1bbdfa00b.pdfIn PDF document text
    • https://s3.amazonaws.com/zidenigad/matibinujosi.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4473041/normal_606b540f4830b.pdfIn PDF document text
    • https://s3.amazonaws.com/jefazaxal/80596455099.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4468571/normal_5ff02d91edb2e.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off00028761.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28761 5128 bytes
SHA-256: 0b209829a9314161cdd732b52c3049d6beae6ce519145765816c020db999b19e
font_01_sfnt_off000298d0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x298D0 11244 bytes
SHA-256: 12e6cd9b8e4604e75aab0a6c8f738cf8feb561464cf18f9eb97df73648ad09ec