PDF malware analysis — malicious · d1a4cea93eaacf84

MALICIOUS

PDF

66.8 KB Created: 2021-09-24 18:27:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-26

MD5: 200fd02655d90118db4861ec3ce42aef SHA-1: adddf33a63998346b142662610ba1e1a18cb95b6 SHA-256: d1a4cea93eaacf849a3bbde2283260b94346b95c03f1c9d0e0577d5543016a08

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file was flagged by multiple heuristics, including a critical ClamAV detection for 'Pdf.Phishing.Trojan'. The PDF contains a large number of embedded links, many pointing to disposable or unknown domains, suggesting a link farm designed to redirect users to malicious content. The presence of 'utm_term=apk+minecraft+java+edition+free' in one URL indicates a potential lure for game-related downloads, which are often used to distribute malware.

Machine Learning

Nyx PDF Classifier malicious score 0.6279

Heuristics 4

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
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 http://fullerton.kopanramen.com/uploads/files/zimilato.pdf In PDF document text
- http://yanartekstil.com/firma/files/bejatiritowesadiw.pdfIn PDF document text
- https://sandipkumardutta.com/ckfinder/userfiles/files/mazuluvexovipal.pdfIn PDF document text
- https://pre-www.bridge-college.com/uploaded/ckeditor/files/dumiludifurekalo.pdfIn PDF document text
- http://dogalakustik.com/depo/sayfaresim/file/97124325956.pdfIn PDF document text
- http://www.museopizarra.com/ckfinder/userfiles/files/79446205011.pdfIn PDF document text
- https://bcbc3399.com/upload/files/pobojusujivoj.pdfIn PDF document text
- https://hotelpancharatna.com/assets/userfiles/files/35544441428.pdfIn PDF document text
- http://agedwedfjtj.pretty-match.com/upload/files/bubofano.pdfIn PDF document text
- http://voijin.com/userfiles/files/47174080823.pdfIn PDF document text
- http://prosquash.by/data/misetivuzesisujedola.pdfIn PDF document text
- http://music-summer-courses.eu/upload/files/movunogupixiw.pdfIn PDF document text
- https://www.ideaklinik.com.tr/wp-content/plugins/formcraft/file-upload/server/content/files/16136024e585c8---63708159388.pdfIn PDF document text
- https://textosolutionslinguistiques.com/upload/editor/file/mevukurilu.pdfIn PDF document text
- http://cnkls.com/userfiles/file/1631914993.pdfIn PDF document text
- http://lotuscourtpune.com/wp-content/plugins/super-forms/uploads/php/files/6aa315c9e75018a0d6fe8474d7ea094e/gurifuvimorukikosi.pdfIn PDF document text
- http://giteduguedesboires.com/userfiles/file/80425253519.pdfIn PDF document text
- https://used-machinetools.ro/app/webroot/files/userfiles/files/kifedeman.pdfIn PDF document text
- http://sxnqx.org/upload/file/Fl202109071752199961.pdfIn PDF document text
- https://holcom-wd.com/webroot/img/files/61280433530.pdfIn PDF document text
- http://olymp-kiev.com/temp/fckeditor/file/21230835160.pdfIn PDF document text
- https://feedproxy.google.com/~r/Uplcv/~3/Om9ozkHLxGw/uplcv?utm_term=apk+minecraft+java+edition+freePDF link annotation
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000b33f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xB33F	18088 bytes
SHA-256: `28bdbbbd124b03b7a11e129c0f11f3b312147d949b4f7bfb39111800a4f97459`
`font_01_sfnt_off0000e0e3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xE0E3	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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