Malicious PDF — malware analysis report

Static analysis result for SHA-256 4db713f8f387cfb1…

MALICIOUS

PDF

57.0 KB Created: 2021-02-24 18:49:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 6c3fc7cb288fd8adce3036c8bcf9717c SHA-1: 4dcdafe912631683676749a78ff702a75afbeeca SHA-256: 4db713f8f387cfb103df432b8b910ae6b30eb6ca41475b223235d17fa811402e
94 Risk Score

Malware Insights

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

The PDF file contains an embedded URI pointing to 'druttle.ru', which is flagged as suspicious. The document body, though heavily obfuscated, contains text related to search queries, suggesting a lure. ClamAV detection and ML classification confirm the malicious nature of the file, likely a phishing or trojan downloader.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9119

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • 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://druttle.ru/award?keyword=hansel+and+gretel+bakery+near+me
    • http://fitit.space/18960083207xvbss.pdf
    • http://bestrongbyg.com/tizezuzia0aij.pdf
    • http://org-fruit.space/jerasopisekexuljsz60.pdf
    • http://websporizle3.com/59265534527duk4a.pdf
    • http://gojawufeki.getenjoyment.net/what_is_tqm_and_why_is_it_important.pdf
    • http://nonretloli.site/king_gizzard_and_the_lizard_wizard_torrentd6v7b.pdf
    • http://lebizifijafaxim.medianewsonline.com/5_scale_rating_strongly_agree.pdf
    • http://titanof-filtr.ru/button_href_to_fileyh1es.pdf
    • http://abanca-electronica.com/the_challenge_war_of_the_worlds_2_finale_watch6kvoy.pdf
    • http://wijasagasipode.getenjoyment.net/lg_soundbar_nb3530a_mounting_bracket.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://suziwifu.rf.gd/template_powerpoint_mac_free.pdf
    • https://s3.amazonaws.com/selivuvumepaveb/fnma_guidelines_disability_income.pdf
    • https://s3.amazonaws.com/bisapovepizaj/actor_resume_template_2018.pdf
    • https://s3.amazonaws.com/zemigiduwagafu/manual_diseo_bioclimatico.pdf
    • http://zotubune.myartsonline.com/11593290116.pdf
    • https://s3.amazonaws.com/kubafezin/95667898281.pdf
    • https://s3.amazonaws.com/padadutiseni/88731564494.pdf
    • https://s3.amazonaws.com/tinivukedeta/flotten_lake_fishing_report.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000be5c.bin
aa45bdb6c8835d406e92a1d65db19c6e6e0ea460b040ce434cca4a1ae923f24d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xBE5C 5044 bytes

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