PDF malware analysis — malicious · 4788414d8a421ddd

MALICIOUS

PDF

79.9 KB Created: 2021-06-18 20:47:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-20

MD5: b7bea1e9bd5b84cdb22effd0d1ac581a SHA-1: 089f34729db19614d96e8a2142b9f57ec4cb11fb SHA-256: 4788414d8a421ddd1a2b6542facd5047ce10c208cb11009857f1a46496233052

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://crewmak.ru/uplcv?utm_term=sach+keh+raha+hai+deewana+dil+na+kisise+lagana+song+download PDF link annotation
- http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607f35ec79abb---63070254754.pdfIn PDF document text
- https://forkidsvietnam.vn/wp-content/plugins/super-forms/uploads/php/files/othpjirpdsmeh6uhsqn6bhss4o/92109483979.pdfIn PDF document text
- https://xn--i1aam8cb.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/118f12381a5b5ec21c52a4aa53484459/16302064443.pdfIn PDF document text
- http://alternativefitness.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/16084f4dfd63d2---14759925011.pdfIn PDF document text
- https://benchmarktransitions.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ba83d81e1ac---naxosaku.pdfIn PDF document text
- https://brandonsmilesdentistry.com/wp-content/plugins/super-forms/uploads/php/files/2jk6p640864ahbkoqt3b7jctn1/winujix.pdfIn PDF document text
- http://orgue-chantepie.info/FCKeditor/upload/file/87138472710.pdfIn PDF document text
- http://mko-yug.ru/wp-content/plugins/super-forms/uploads/php/files/7505cf44c8f5d9729ac3ecaba55b0213/80117269535.pdfIn PDF document text
- https://myupfield.link/wp-content/plugins/super-forms/uploads/php/files/2hamp604gfscqbfod84cb31d26/talatotox.pdfIn PDF document text
- https://www.asahinafunnels.com/wp-content/plugins/super-forms/uploads/php/files/cp9miqm1rhq5124nqh719t17uk/8086562627.pdfIn PDF document text
- http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16073bcfed1470---jizuwowipi.pdfIn PDF document text
- https://cashmeredreams.com/wp-content/plugins/super-forms/uploads/php/files/63c5d0b05a76e6ddc52ca68335a99528/dotenaxorifeferojesaja.pdfIn PDF document text
- http://for-rent-aalst.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608d19d5297d0---maxosojiwozuzaxokoludus.pdfIn PDF document text
- http://staropolski.net/Upload/file/tozuxudegal.pdfIn PDF document text
- https://amalighting.com/wp-content/plugins/super-forms/uploads/php/files/736b36c4abe838613360020f8c249237/2277894552.pdfIn PDF document text
- http://bahtiyardishekimi.com/fckfiles/file/vigekitefolafez.pdfIn PDF document text
- https://nbtele.com/en/cache/fck_files/file/zorel.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://fedorahosted.org/lohitIn 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_off0000dcff.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDCFF	5460 bytes
SHA-256: `6ecf3eca69c5e91eba39e48f8d579b14848a1a4a2dabdd350344f70d49f97733`
`font_01_sfnt_off0000ef99.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xEF99	10272 bytes
SHA-256: `0a7faf426895c33b04c4cd237696ceacb00ab65a237e0ee9150f900710aed586`
`font_02_sfnt_off000112cc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x112CC	8756 bytes
SHA-256: `e89496bca464c07ffcd155cdb5bac2351fcd65df5060eabeba131dfec6d661f6`

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