PDF malware analysis — malicious · 445608940552dd39

MALICIOUS

PDF

79.7 KB Created: 2022-05-07 00:46:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2026-06-10

MD5: e8b46537dfaff493b942c0dbeed4b1b2 SHA-1: f16dbcd26d2549ca25702079880319fc2d0aa1db SHA-256: 445608940552dd39200eed86a3051dacc1c7d4094be75e3123c6f2d5026fff12

134 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9988

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 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.
Embedded JS stream low PDF_JS

PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
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://cafij.co.za/YmrXLWy8?keyword=bsc%20magazine%20april%202019%20pdf%20%20pdf%20reader PDF link annotation
- http://mms.vru.ac.th/kcfinder/upload2565/files/56458124970.pdfIn PDF document text
- https://jomezafivawig.weebly.com/uploads/1/3/1/8/131856232/4172094.pdfIn PDF document text
- https://kawanmto.net/contents/files/5961786439.pdfIn PDF document text
- https://nrsa.tj/nrsa_system/ckeditor/kcfinder/upload/files/xaxujobezoze.pdfIn PDF document text
- http://infotechloyalty.com/bot/ckfinder/uf/files/ligol.pdfIn PDF document text
- http://yangpupark.com/uploadfile/files/69419837364.pdfIn PDF document text
- https://faxufoxexukixel.weebly.com/uploads/1/3/4/4/134455740/gulapugof.pdfIn PDF document text
- https://vuvuligebefu.weebly.com/uploads/1/3/7/5/137510570/visonifolisitut_koteno.pdfIn PDF document text
- http://lexxyin.net/files/fckeditor/file/58782756027.pdfIn PDF document text
- https://armenia4d.com/contents/files/4161027126.pdfIn PDF document text
- https://vunepixas.weebly.com/uploads/1/3/1/4/131483778/verogebeto_gupaw.pdfIn PDF document text
- https://2b3la571ga-70p.com/contents/files/87041370314.pdfIn PDF document text
- http://undergroundspitters.nl/kcfinder/upload/files/tunoxadifo.pdfIn PDF document text
- https://pinkrali.com/calisma2/files/uploads/81967249904.pdfIn PDF document text
- https://koxulisel.weebly.com/uploads/1/3/4/6/134600043/85b04876.pdfIn PDF document text
- http://www.letnifestiwal.pl/ckfinder/userfiles/files/13631084031.pdfIn PDF document text
- http://progressive-auto.ru/app/webroot/js/kcfinder/upload/files/25976380830.pdfIn PDF document text
- http://magdrywall.com/project-new/christianbook/upload_images/file/39008408747.pdfIn PDF document text
- https://jotekonybakterium.hu/userfiles/files/32057568357.pdfIn PDF document text
- http://genesisglobalbd.com/assets/ckeditor/kcfinder/upload/files/59005125361.pdfIn PDF document text
- https://birogiso.weebly.com/uploads/1/3/4/6/134694086/nozut-lesuzivujejoz.pdfIn PDF document text
- http://ventss.ru/userfiles/files/domikiberudesoso.pdfIn PDF document text
- https://tinabatof.weebly.com/uploads/1/3/0/7/130776088/sanazaxo-rogopixulefo-xelumejo-mebuxosabiwoso.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_off0000cfb1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xCFB1	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`
`font_01_sfnt_off0000e7c3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE7C3	17024 bytes
SHA-256: `2f49977f19841519a644e91f3220a0bb9c5051119941b51805f6478002b2400e`
`font_02_sfnt_off00011436.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x11436	11320 bytes
SHA-256: `626343bffeb920997b9738a75be307ec66e4c5af8994bb195c6fb63bbcb11d04`

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