Malicious PDF — malware analysis report

Static analysis result for SHA-256 72533790562d9ec8…

MALICIOUS

PDF

78.4 KB Created: 2021-03-01 09:10:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 602c030de1f0c419f3dce7201bc89a34 SHA-1: 4978c8cb4154b66b9bdd57942a9280f08478568f SHA-256: 72533790562d9ec8a3ed46428e6f468282cfd2d57482a034e143538baf4e0ca3
136 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was flagged by ClamAV as 'Pdf.Phishing.Trojan' and ML classifiers indicated a high probability of maliciousness. The document body and heuristics point to a phishing lure related to car remote start systems, directing users to an external URL for download. This suggests an attempt to deliver a malicious payload via a phishing attachment.

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://pelibifir.ru/wix?keyword=viper+remote+start+standard+transmission PDF link annotation
    • https://xapenivivafozeb.weebly.com/uploads/1/3/1/3/131379266/6019191.pdfIn PDF document text
    • https://s3.amazonaws.com/guxosa/96231771956.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4496151/normal_5ff3b10017d51.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421960/normal_6031dfb175c8f.pdfIn PDF document text
    • https://s3.amazonaws.com/matogapibelifiv/mitexobitidedarelujuliger.pdfIn PDF document text
    • http://workshop-fb.ru/54539669013sko0z.pdfIn PDF document text
    • https://cdn.sqhk.co/migukosodaza/gdjggc8/6035055451.pdfIn PDF document text
    • https://fiwigerisen.weebly.com/uploads/1/3/1/4/131408459/zaxoxi-todisow-titimawegu-vewobibi.pdfIn PDF document text
    • https://cdn.sqhk.co/xedogigiloli/Miajagh/fast_racing_neo_physical.pdfIn PDF document text
    • https://cdn.sqhk.co/fuvepiwedo/jd1Shid/qr_barcode_scanner_apk_free_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417536/normal_602253746ac82.pdfIn PDF document text
    • https://s3.amazonaws.com/dutimajizowa/infant_food_guidelines.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4486534/normal_600809d76a90f.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4409801/normal_5ff1246771256.pdfIn PDF document text
    • https://s3.amazonaws.com/sezewu/mobas.pdfIn PDF document text
    • https://gopadafuwidu.weebly.com/uploads/1/3/0/7/130740623/gediwiwido_nojugo.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://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 8

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_off0000e950.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE950 4828 bytes
SHA-256: c09b389af20e6609536ce565b54b1c5d0284c68cb9d9b8c03031c75bdaff84bc
font_01_sfnt_off0000f997.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF997 10660 bytes
SHA-256: e352d5fb69c71ce580879d9a190ddfe4933591fb378105c8ef4e79206e0788c9
font_02_sfnt_off00011e03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E03 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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