PDF malware analysis — malicious · 0de4bad6a3d53cd2

MALICIOUS

PDF

77.0 KB Created: 2021-03-04 16:00:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-05

MD5: 11247e2ceb47fd8c6b1a17f2ca7d5076 SHA-1: 4d455a00e56fb6606503bb86ef2aaced95167b44 SHA-256: 0de4bad6a3d53cd2b1cf4effcc34389ae24842dd280a75f0195bd0fbb96e8f2b

126 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

This PDF was flagged by ML classifiers and ClamAV as malicious, indicating it is likely a phishing or malware delivery attempt. The document body, though heavily obfuscated, contains references to 'wkhtmltopdf' and a URL related to gaming accessories, suggesting a lure to external sites. The presence of numerous external URIs and link farm heuristics further supports a malicious intent to redirect users.

Machine Learning

Nyx PDF Classifier malicious score 0.9991

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
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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://seumenha.ru/award?keyword=how+to+connect+turtle+beach+stealth+600+gen+2 PDF link annotation
- https://cdn.sqhk.co/nujidegowupi/ihfZibh/44358395219.pdfIn PDF document text
- https://cdn.sqhk.co/medujebukoma/bOjeahb/srs_mobile_topup_download.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4372373/normal_602d604f72f6f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4493221/normal_6002ddbd0f412.pdfIn PDF document text
- https://cdn.sqhk.co/sejujona/ajjGqib/jifekewezawoz.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4370064/normal_601bb4004d1d9.pdfIn PDF document text
- https://cdn.sqhk.co/zoxowowi/cijif7u/14946449315.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4487665/normal_6032ab0b96c2f.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4392444/normal_5fc86d4bb6563.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
- https://4dcfe184-cd6c-48f8-9f23-5461c743a1d4.filesusr.com/ugd/cc8533_606e542dfc21440a9f3c806d93476c22.pdf?index=trueIn PDF document text
- https://6ec3981f-6443-463b-a164-91fc69f101d9.filesusr.com/ugd/7603ae_a46d8f7969074de081cc2aafd0fb7196.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/takurugilij/shutterstock_video_tool.pdfIn PDF document text
- https://1c019786-7048-4615-837a-ae53f087c4ae.filesusr.com/ugd/8b4172_9df280eaade844619dd5aaf757254821.pdf?index=trueIn PDF document text
- http://bokakemipik.epizy.com/walazoz.pdfIn PDF document text
- https://s3.amazonaws.com/jejulurowev/graphing_parabolas_worksheet_algebra_1_answers.pdfIn PDF document text
- https://bad3f395-1638-4667-b349-d6f934eeab49.filesusr.com/ugd/ed2d23_ced189e8c07b46a981c1d3acb87e81bb.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/fevobelijogal/41920971455.pdfIn PDF document text
- http://vudujufilax.epizy.com/dipubuzuwofiguje.pdfIn PDF document text
- https://s3.amazonaws.com/suxuzubojut/lusosukaba.pdfIn PDF document text
- https://s3.amazonaws.com/zagapaxa/15846324742.pdfIn PDF document text
- https://08c3cc13-1ce0-4add-927e-a3aed263473e.filesusr.com/ugd/ccf397_4420093e2cc841579e3d0c7bf8505b3c.pdf?index=trueIn PDF document text
- https://s3.amazonaws.com/gixirojozogufux/brunswick_marine_emea_com.pdfIn PDF document text
- https://s3.amazonaws.com/natewared/82472326422.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 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000e1cf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE1CF	5516 bytes
SHA-256: `f8e01f85c3198a9d66389985a7fc12b8593cd162876619c6ab475a15e3e83b56`
`font_01_sfnt_off0000f492.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF492	10412 bytes
SHA-256: `ddddfa57955d1383ecdc35e10e241ded57ee7b911cfff2293585d4fa2ef548b3`
`font_02_sfnt_off00011841.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11841	4324 bytes
SHA-256: `b50a2106bf82917db0cd3cf88f63c5e8cc3298b343ace5cffc591b35df33d24c`

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