Malicious PDF — malware analysis report

Static analysis result for SHA-256 65797dbebef73b45…

MALICIOUS

PDF

73.4 KB Created: 2021-09-16 16:55:19 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 11e43271f473d30b30810fb9fe623392 SHA-1: 1b28f20e54fb9e4e129f48ccdd8eac96e4d4049a SHA-256: 65797dbebef73b45f5e54ec916fbb6468d70ec285769f9e236da6ae62c420853
124 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF file contains numerous embedded URLs, many of which are hosted on disposable domains and utilize UTM parameters, suggesting a phishing or malware distribution campaign. The ClamAV detection and ML classifier further indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a spearphishing attachment used to redirect users to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7921

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 https://crewmak.ru/uplcv?utm_term=photoshop+2020+crack+file
    • http://forepic.com/_UploadFile/Images/file/pepagarewidipefugatiped.pdf
    • http://seychelles-resort.com/images/blog/file/zudafuramutebufupew.pdf
    • http://www.szphotar.com/admin/img/files/siwuziren.pdf
    • https://almoheetmanpower.com/public_html/userfiles/file/pikanat.pdf
    • http://husplaza.hu/editor_up/wamejonaki.pdf
    • http://www.yt333.com/userfiles/20210913/file/1631478710.pdf
    • http://www.dreamstoreonline.es/ckfinder/userfiles/files/zakotekunebuwudunajatuzig.pdf
    • https://astoraccessories.com/uploads/ckfinder/files/baduvarulagovufikefaseve.pdf
    • http://www.sloepverhuur-debiesbosch.nl/upload/files/32872256617.pdf
    • http://abwrichmond.com/uploads/files/sorajogovarowobaxanemarun.pdf
    • http://m3hotels.com/userfiles/file/19622489082.pdf
    • http://sgpeo.pl/users/file/22100969802.pdf
    • http://karat-dobremiasto.pl/userfiles/file/nafux.pdf
    • https://xn--1--8kcai1ck2bs.xn--p1ai/wp-content/plugins/super-forms/uploads/php/files/4d1c81a72a9b76e18f0d6927b8651bab/91428250005.pdf
    • http://bishnutoursandtravels.in/userfiles/file/55318407053.pdf
    • https://zahidnawaz.com/UploadedImages/image/depep.pdf
    • http://eastcoastbiker.de/sites/default/files/file/nejidogako.pdf
    • http://castudio.eu/userfiles/files/26841841425.pdf
    • https://itscebu.com/upload/file/20210916180057.pdf
    • http://pampa.be/uploads/userfiles/files/batuvatosovetoxazenoden.pdf
    • http://xaydunglenguyen.vn/upload/files/be1fa3.pdf
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000102f9.bin
43d3566dccf918c6ab6a99353944b9252696f4cae69a8bba3f61b2b889a7e3ae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x102F9 10808 bytes

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