Malicious PDF — malware analysis report

Static analysis result for SHA-256 e60bb34174064ef6…

MALICIOUS

PDF

79.7 KB Created: 2021-09-18 21:49:13 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3) First seen: 2021-10-14
MD5: a28b84be5eb35e2311a2a51ec654ae2e SHA-1: a494f0ae8c645ef9d1f690507fad7dcf2239ede2 SHA-256: e60bb34174064ef655066d5b3bc6d90945ed62705c1eea89bb046b441c2da642
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV with a signature indicating it is a phishing trojan. Static analysis revealed embedded JavaScript and numerous external URLs, many of which are part of a link farm on disposable hosting. The embedded JavaScript likely facilitates the execution of malicious actions or redirection to malicious sites, contributing to a phishing or malware distribution attack pattern.

Machine Learning

  • Nyx PDF Classifier suspicious score 0.3358

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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
  • 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://pixomot.ru/uplcv?utm_term=fortnite+cheats+ps4+2020 PDF link annotation
    • https://speedwayinfo.hu/uploads/file/bivukobalexav.pdfIn PDF document text
    • http://geotersrl.it/file/75757681675.pdfIn PDF document text
    • http://3bbb.fr/ckeditor/upload/files/35654401983.pdfIn PDF document text
    • https://larioenergy.net/uploads/file/dumobi.pdfIn PDF document text
    • http://xn----7sbbbizu2bxaod.xn--p1ai/userfiles/file/gadekelu.pdfIn PDF document text
    • https://feldmann.pl/userfiles/file/zuvanadisijale.pdfIn PDF document text
    • http://www.asiacoservice.com/file/files/58839900250.pdfIn PDF document text
    • http://kfnmsz.com/upfolder/e/files/20210914115555.pdfIn PDF document text
    • https://minervatech.work/js/ckfinder/userfiles/files/77119495099.pdfIn PDF document text
    • https://drivetripper.com/userfiles2020/files/niruko.pdfIn PDF document text
    • https://cryptoshift.be/anaeter_capital/siteadmin/userfiles/files/19800471225.pdfIn PDF document text
    • https://arrad.ch/modules/ck/ckfinder/userfiles/files/laxepavoju.pdfIn PDF document text
    • http://swaving-stalinrichting.nl/ckfinder/userfiles/files/laloravewowirijamoti.pdfIn PDF document text
    • http://restavratorstvo.com/ckfinder/userfiles/files/80385570479.pdfIn PDF document text
    • http://goldia.cz/data/file/90001943084.pdfIn PDF document text
    • http://thsport.dk/userfiles/file/bebeno.pdfIn PDF document text
    • http://thebeautyofdesign.nl/ckfinder/userfiles/files/piwimurenumomiwesev.pdfIn PDF document text
    • http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/1613947d2d8ed4---sagoduxumosawenivu.pdfIn PDF document text
    • https://phu-komplex.pl/pliki/file/xopapoboligepokazivedit.pdfIn PDF document text
    • https://pmfegypt.com/userfiles/files/8450381115.pdfIn PDF document text
    • http://zima.italie-ubytovani.cz/data/file/zitubeda.pdfIn PDF document text
    • http://buyyoutubecomments.com/ci/userfiles/files/mixidobufog.pdfIn PDF document text
    • http://another-partner.morefriendship.com/upload/files/kimopiwulalilosumisedezo.pdfIn PDF document text
    • 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.

FilenameKindSourceSize
font_00_sfnt_off0000f8dc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF8DC 10720 bytes
SHA-256: 18467ce8b336235eff7f4494135ea640a5f54f1f0ca24c9233aa85aa4d24b5b8
font_01_sfnt_off00011179.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11179 16792 bytes
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1

Open this report in the interactive analyzer, or submit your own file for analysis.