PDF malware analysis — malicious · 3dd3c85747fe75ca

MALICIOUS

PDF

81.7 KB Created: 2021-06-09 01:25:01 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-26

MD5: 6accc89df6cf6bba662672d0a44447aa SHA-1: 3c6f0488d0adbf6fdb6de284713de58b3032f783 SHA-256: 3dd3c85747fe75ca23cfc1e285c99830cada4d62c9e7cc9bfc245d119ec0cea6

156 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 6

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM

PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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://archism.ru/uplcv?utm_term=earth+day+quiz+questions+and+answers+printable PDF link annotation
- http://www.mediacomriccione.it/wp-content/plugins/formcraft/file-upload/server/content/files/160b2cef87acd0---57281973352.pdfIn PDF document text
- http://www.segurosfacility.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1609c5f99e73e3---rujutigojodobazukuropu.pdfIn PDF document text
- https://photographerin.agency/wp-content/plugins/super-forms/uploads/php/files/4pkpu4no64d9jd6ku9uq890q90/deraligibuzazetuvelum.pdfIn PDF document text
- http://friluftsgruppen.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607ffda0d4367---97791287825.pdfIn PDF document text
- http://xn--l3cbpp3gh4a5g5c.com/userfiles/files/xebopezagozera.pdfIn PDF document text
- http://pappteam.hu/userfiles/file/rebigemuragijarijexe.pdfIn PDF document text
- https://alutat.com/data/file/36930407195.pdfIn PDF document text
- http://www.mvdisposal.com/wp-content/plugins/formcraft/file-upload/server/content/files/16082086b8511b---paneguvi.pdfIn PDF document text
- http://sinara.org.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607c58b0153b1---4922730383.pdfIn PDF document text
- https://rubyyadav.com/nbloom/fckuploads/file/zutefaror.pdfIn PDF document text
- https://avenirpourtous.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1607aeccdd8ddd---gitazemavefudumopuxomo.pdfIn PDF document text
- http://tunesistudio.eu/userfiles/files/sadelovuzosibij.pdfIn PDF document text
- https://afanasyev-design.ru/wp-content/plugins/super-forms/uploads/php/files/9f7cd3d3c96cdd5cc95c6c76b57ae357/nujolawiwewikuresusizegal.pdfIn PDF document text
- https://specialbrands.gr/wp-content/plugins/super-forms/uploads/php/files/c8ed5154fad0b6e257f1c50ead0f8922/71698767215.pdfIn PDF document text
- http://www.tsssport.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a30fe288cc3---furalepamofifepofawavigu.pdfIn PDF document text
- http://toyteepee.com/uploadfiles/file/210522022805963813tzsx2a.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

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f3e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF3E7	5396 bytes
SHA-256: `8a1953f2f4362ac414253ffceffeac9ff464ccd1e06d0f4c6bc45640574c5a3d`
`font_01_sfnt_off0001064a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1064A	10940 bytes
SHA-256: `7a56fc515180943ad53904d04fd01ffd87e12d947d1cb648e14c4365265ebf72`
`font_02_sfnt_off00012b73.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12B73	4324 bytes
SHA-256: `a542ec26cea93e049a2e27cd59b1347dd9bbdea13775fd7b822b3c2b3136116f`

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