Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9c1b1fc03703937…

MALICIOUS

PDF

205.6 KB Created: 2021-03-22 01:03:45 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: d79b5a0acbd967ef9f33ee1d944e8f2a SHA-1: 3876f0f18ca090c4c4244b39d5b49962e6e4909d SHA-256: e9c1b1fc037039370bb91294ed23ff3e0a143d8c6a9db894b911e41236841a5a
94 Risk Score

Malware Insights

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

The file is identified as malicious by multiple detection engines, including ClamAV and an ML classifier. It contains an embedded URI pointing to a suspicious domain, which is likely used to host malicious content or facilitate phishing. The document body, though heavily obfuscated, suggests a lure related to academic content to entice users to click the malicious link.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9008

Heuristics 3

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://crophysi.ru/award?keyword=reactions+of+thiosemicarbazide+pdf
    • http://interbankdigital.com/38190676003ojp9n.pdf
    • https://static.s123-cdn-static.com/uploads/4422135/normal_5fc7627d2526d.pdf
    • https://cdn.sqhk.co/tekuzorumuji/aYjagff/70937655284.pdf
    • https://cdn.sqhk.co/senaveduwiz/e3vqihk/agrarian_reform_problems_in_the_philippines.pdf
    • http://koreanluxe.com/lebidopakuzemegekixemeo43w3.pdf
    • http://lorebip.22web.org/voicemail_to_text_android_verizon.pdf
    • https://static.s123-cdn-static.com/uploads/4486971/normal_5fc7ebb80f3f3.pdf
    • http://digosige.mywebcommunity.org/what_does_the_acronym_smart_stand_for_answers.com.pdf
    • https://cdn.sqhk.co/neviragar/dChahd9/68395522518.pdf
    • http://rasprodavaika.ru/bidigeduzatxdyhv.pdf
    • https://cdn-cms.f-static.net/uploads/4368740/normal_60539ac13eb7a.pdf
    • http://ryursew.space/hd_wallpaper_love_birds_photosa5dj6.pdf
    • https://cdn.sqhk.co/fugovigul/hdcMjjv/best_recharge_card_scanner_ntc_ncell_users.pdf
    • http://fontawesome.iohttp://fontawesome.io/license/
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://nokejufesuw.atwebpages.com/speak_now_digital_booklet.pdf
    • https://s3.amazonaws.com/fojaxexino/how_to_start_a_realistic_fiction_book.pdf
    • http://pozidijapepore.atwebpages.com/zetojuzikakojipab.pdf
    • http://lawiferow.myartsonline.com/axis_bank_personal_loan_application_form.pdf
    • https://s3.amazonaws.com/woxojuxafopuv/17536279718.pdf
    • http://gajovab.epizy.com/48256888676.pdf
    • https://s3.amazonaws.com/sorogamat/kamejulabigokoxofutaw.pdf
    • https://s3.amazonaws.com/juvuraguvutoxif/154012435.pdf
    • http://jufofokisib.epizy.com/going_postal_terry_pratchett_full_movie.pdf
    • https://s3.amazonaws.com/tosevud/26814919639.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0002f650.bin
e6a14c13802b1aec86fd0aba1956a792643f74689d83c943e960e56befef0f55		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F650 1656 bytes
font_01_sfnt_off0002fe9e.bin
7d5a7027a81396c73cadef0b820b0c6e5e6f348cc5c438b5ea135b51b2021499		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE9E 5560 bytes

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