Malicious PDF — malware analysis report

Static analysis result for SHA-256 0602514ced284e55…

MALICIOUS

PDF

63.4 KB Created: 2021-09-28 12:43:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: ab3eef015092715d7dbcab69bbdb5341 SHA-1: d92ddb6d853338449518b18c582d34192cb623cb SHA-256: 0602514ced284e55a79bc02e4b77929cd572211173d0607a910d75f0e318d333
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was detected as malicious by ClamAV and an ML classifier. It contains a large number of embedded links, many of which point to disposable hosting and are part of a link farm, suggesting a phishing or malware distribution scheme. The presence of multiple compromised CMS upload links further indicates malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6298

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
  • PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARM
    PDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://solarconsulting.org/wp-content/plugins/super-forms/uploads/php/files/35537979ec7a93f84acb65442e334ee3/25853763156.pdf
    • http://tpdw.pl/userfiles/file/dakulafitasorimevozu.pdf
    • http://savaksangida.com/resimler/files/kasapufenekufepoluzapuxa.pdf
    • https://dukra.sk/editor_uploads/files/43673747269.pdf
    • https://dtd.com.pk/ckfinder/userfiles/files/benemoxatubolepotuw.pdf
    • http://nktrading.qa/file/files/geledimeresugazuzakutofed.pdf
    • http://kapalishakti.com/ckfinder/userfiles/files/jesux.pdf
    • http://nattuvaartha.com/assets/ckfinder/core/connector/php/uploads/files/62850517242.pdf
    • https://ayurmitra.com/files/file/kasikuxuwive.pdf
    • http://linker-apps.com/files/42345299242.pdf
    • https://mobiligennari.com/userfiles/file/repuwexo.pdf
    • http://pjcwyy.com/upload/file/39385587743.pdf
    • https://rrvchefs.com/wp-content/plugins/super-forms/uploads/php/files/579b97dee8514c2ba041fb24c3c14369/pizaxomilipefavi.pdf
    • http://ydyb.com/filespath/files/20210918192219.pdf
    • http://teamwork-poetschke.com/ckfinder/userfiles/files/nezabalumiribobupokon.pdf
    • https://autoprofi.ua/userfiles/file/ludawesijununozoruf.pdf
    • http://ingpiazza.eu/userfiles/files/bemexijudelatudakigesuze.pdf
    • https://i-try.tw/upfile/files/2021/09/16/31643151862.pdf
    • https://pcparts.fr/ckfinder/userfiles/files/96199567235.pdf
    • http://salon-urody-bellis.pl/images/file/jugakuzunokek.pdf
    • https://alenakovalchuk.ru/wp-content/plugins/super-forms/uploads/php/files/7bef4ca58e97978ab75ff31e96475474/basikekiduzavevasutij.pdf
    • http://eichler-kammerer.de/fomovanaxakuzotukaxubo.pdf
    • https://feedproxy.google.com/~r/skout/mBVl/~3/LPIa9PGmDLg/uplcv?utm_term=shadow+fight+3+hack+game+download
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000acc8.bin
11fe8853018e7b60c93c573100b5e3df4c43b09fa7cb76ab2405aeaa76d257bb
pdf-font-stream PDF embedded font (sfnt) at offset 0xACC8 15280 bytes
font_01_sfnt_off0000d229.bin
8a3ab018aa4dc6ea156ad640b35fc2dd7db739b42c1750a3ad38adf853e2ca00
pdf-font-stream PDF embedded font (sfnt) at offset 0xD229 11080 bytes