PDF malware analysis — malicious · 30d4d69b7151fe9a

MALICIOUS

PDF

78.1 KB Created: 2021-09-11 22:00:26 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-09-29

MD5: 7ab607c3512f0b2ecb46330088e28021 SHA-1: ca9780cd58ffc4dca1e471392818829d6e2cacd3 SHA-256: 30d4d69b7151fe9a412940e15889442793e6e27f55c1473d1a2d5cd6b909bc28

124 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1059.007 JavaScript

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds a large number of external links characteristic of an SEO link farm. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.6300

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://obkladlazby.cz/userfiles/file/71828023431.pdf In PDF document text
- https://nicemexico.net/wp-content/plugins/formcraft/file-upload/server/content/files/1613c75dc2ec35---xusidikekole.pdfIn PDF document text
- https://godahoian.com/app/webroot/upload/files/76914183368.pdfIn PDF document text
- http://photo-preiss.com/upload_files/files/figemavazaseronidi.pdfIn PDF document text
- https://njshore.drinkpoint.com/uploads/files/68990275989.pdfIn PDF document text
- https://aftaplan.com/works/peepsparty/html/upload_files/file/63639352356.pdfIn PDF document text
- http://accronline.com/userfiles/file/92574018378.pdfIn PDF document text
- https://iohrp.org/f_files/files/zogizo.pdfIn PDF document text
- http://punaide.com/userfiles/files/jiwiwez.pdfIn PDF document text
- http://driver-jazda.pl/upload/file/jolugikozidalelasafi.pdfIn PDF document text
- http://vinhhangvien.com/upload/files/57666210326.pdfIn PDF document text
- https://vinniescustoms.com/userfiles/files/60307269219.pdfIn PDF document text
- http://kleni.cz/userfiles/file/13526040592.pdfIn PDF document text
- http://lesen-und-schenken.de/userfiles/files/zeritibukevobeb.pdfIn PDF document text
- https://stcatherine.ac.ug/wp-content/plugins/formcraft/file-upload/server/content/files/16136cc8662289---kugibekililowizivolub.pdfIn PDF document text
- http://tinhdauvietnam.vn/upload/files/zefajanuluku.pdfIn PDF document text
- http://deaprogettazioni.it/userfiles/files/83962639563.pdfIn PDF document text
- http://travelshops.pl/userfiles/file/19573374767.pdfIn PDF document text
- https://otoform.com/upload/ckfinder/files/60572734509.pdfIn PDF document text
- http://fanti-fitness.pl/uploads/assets/file/56699968507.pdfIn PDF document text
- http://tuning-zone.eu/userfiles/file/keluzibafevitow.pdfIn PDF document text
- http://15449010.com/FileData/ckfinder/files/20210911_9B971BC8A07ADA3E.pdfIn PDF document text
- http://skiflogistics.ru/userfiles/file/95894377411.pdfIn PDF document text
- https://dichvumayphoto.vn/webroot/img/files/44860889284.pdfIn PDF document text
- https://daiichitravel.com/uploads/news_file/wakexalinode.pdfIn PDF document text
- https://umutfm.com/resimler/files/domal.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/ngfLrbzwjls/uplcv?utm_term=open+my+icloud+free+downloadPDF link annotation
- 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_off0000dcd3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDCD3	10840 bytes
SHA-256: `ccf7ae77d7e4da574c117cf7a8e49f405e379880238fbaac42e584e0eac153b1`
`font_01_sfnt_off0000f5d5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF5D5	17648 bytes
SHA-256: `a2cb6fe413535919b8cfcae4355600adda939de4b46c45fc31629fb32b27e7e4`
`font_02_sfnt_off000123b5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x123B5	16792 bytes
SHA-256: `9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1`

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