Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f9abc0c108ff0b2…

MALICIOUS

PDF

57.2 KB Created: 2021-03-09 20:26:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 3f47cf8723ca798cc219c4b42a74c8eb SHA-1: 97228868cba015827d8d270351fc3dd72a03a809 SHA-256: 9f9abc0c108ff0b2d48de1ce5b6d1fa4495b4ce356f93eb26a9962d611b3ee08
124 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains numerous embedded URLs, many pointing to disposable hosting services, and is flagged by ML classifiers and ClamAV as malicious. The document body, though heavily obfuscated, suggests a lure related to 'fixed asset accounting in sap pdf', aiming to trick users into visiting these malicious links. No scripts were extracted, but the overall structure and URL distribution indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.6420

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://jacksth.ru/award?keyword=fixed+asset+accounting+in+sap+pdf PDF link annotation
    • http://gekenig.mywebcommunity.org/how_to_restart_netgear_nighthawk_router.pdfIn PDF document text
    • https://pakotoroxup.weebly.com/uploads/1/3/0/8/130815058/9183806.pdfIn PDF document text
    • https://pubogovivewata.weebly.com/uploads/1/3/2/3/132302724/dabidix.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4451551/normal_5fc6a849260c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447107/normal_6011e58a5ad65.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4471960/normal_5ff2d5214d953.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4492250/normal_600706c52177b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4482189/normal_6040e505a04fe.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475729/normal_5ffe820bd20eb.pdfIn PDF document text
    • http://uspex22.online/tozonamiwobory7jkl.pdfIn PDF document text
    • http://vozuzutiwajuzip.getenjoyment.net/largest_economies_of_the_world_ranking.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380083/normal_6043df998e2de.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451047/normal_60364f03a1d2c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487419/normal_603e399e391c9.pdfIn PDF document text
    • http://bivaxosufuxibo.mygamesonline.org/31691213306.pdfIn PDF document text
    • http://ver-alex.website/exponents_worksheets_grade_9ayx5t.pdfIn PDF document text
    • http://tofugezupeb.mygamesonline.org/bangladesh_population_census_2020.pdfIn PDF document text
    • https://kobigaxa.weebly.com/uploads/1/3/3/9/133997295/4253835.pdfIn PDF document text
    • http://ostanni.fun/what_type_of_heater_is_best_for_a_garage4szdm.pdfIn PDF document text
    • http://aires.fun/95026305190dbplm.pdfIn PDF document text
    • http://wejajesenopezoj.onlinewebshop.net/winenunurumuwewadunedog.pdfIn PDF document text

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