PDF malware analysis — malicious · af212fb8b7434d23

MALICIOUS

PDF

75.4 KB Created: 2022-06-01 10:48:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-21

MD5: 8d9a550cbf1280e36c150efd0e5f60e0 SHA-1: 8235b8217e6fc5382a990f6ca12a4e789498a1bf SHA-256: af212fb8b7434d23e39e21dab5657aa576fc6b73502bbb1538437ec3960f7d50

186 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9963

Heuristics 6

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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://norin.co.za/YmrXLWy8?keyword=rs690m03%20motherboard%20manual%20user%20guide%20manual%20online PDF link annotation
- https://zimivopup.weebly.com/uploads/1/3/1/3/131381614/3457803.pdfIn PDF document text
- http://olgapolyakova.com/files/files/voreg.pdfIn PDF document text
- http://look.bio/kcfinder/upload/files/76875949597.pdfIn PDF document text
- https://dpengineerindia.com/admin/userfiles/file/61744696378.pdfIn PDF document text
- https://zumejojogipe.weebly.com/uploads/1/4/1/4/141402026/dagemi_loxuf.pdfIn PDF document text
- https://kulegireketo.weebly.com/uploads/1/3/5/3/135325025/56581b.pdfIn PDF document text
- https://zafugetab.weebly.com/uploads/1/3/4/5/134502131/foleros-toralaniwowa.pdfIn PDF document text
- https://jinitemolo.weebly.com/uploads/1/3/1/8/131856214/435284dea.pdfIn PDF document text
- http://www.stratcareerservices.com/wp-content/plugins/formcraft/file-upload/server/content/files/162366b42d220a---rivokogodedab.pdfIn PDF document text
- https://tunupufimudodo.weebly.com/uploads/1/3/4/3/134324073/8eb51e.pdfIn PDF document text
- https://zireguxeked.weebly.com/uploads/1/3/4/8/134863403/d8fbcf.pdfIn PDF document text
- https://easypayindia.in/userfiles/file/87087662083.pdfIn PDF document text
- https://vukubafifobam.weebly.com/uploads/1/3/1/6/131636562/8134440.pdfIn PDF document text
- http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/1621f34e8924f6---dasubogiwatakegisowebu.pdfIn PDF document text
- https://saintarseny.ca/sites/saintarseny.ca/files/file/70733220066.pdfIn PDF document text
- http://lexxyin.net/files/fckeditor/file/44647114074.pdfIn PDF document text
- https://juleverut.weebly.com/uploads/1/3/4/4/134488806/nudidafu.pdfIn PDF document text
- https://zapidowezagija.weebly.com/uploads/1/3/4/0/134041255/1361abe204aceb.pdfIn PDF document text
- http://www.siposferenc.hu/html/35179221819.pdfIn PDF document text
- https://expobar.vn/app/webroot/files/images/pages/files/47263986950.pdfIn PDF document text
- http://www.oschouston.com/osc/wp-content/plugins/formcraft/file-upload/server/content/files/1620ce6b73866e---xafixawusowuwarog.pdfIn PDF document text
- https://zasigusedorel.weebly.com/uploads/1/3/4/3/134386673/lodavuju-xerubebifozuj-nomovul.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://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000c0a6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xC0A6	16964 bytes
SHA-256: `dc3c69a8d329953e41b7cbfda13f45ffdb0f4a65e0dc27cb9e2ff9e39772bcaf`
`font_01_sfnt_off0000ecd3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xECD3	11612 bytes
SHA-256: `77b247f99edcc16fa6963f7da26e562c6cee82d62a4ebb51e1bcd68c1ed3ffa2`
`font_02_sfnt_off000107e3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x107E3	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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