Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0b62148859b14ce…

MALICIOUS

PDF

42.0 KB Created: 2021-06-01 20:32:04 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4f2850fa7563ebd66ebfcb43d8ca05cd SHA-1: 875fe870a1a6ad354c0e2d483dc92fcbb8d91b57 SHA-256: f0b62148859b14cee736551c3e903be12ce1e080969bd88187aeb60599b087c9
114 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF was identified as malicious by multiple heuristics, including an ML classifier and ClamAV, and exhibits characteristics of a phishing lure. It contains an embedded URL that likely leads to a malicious site or further download. The document body, though heavily obfuscated, suggests a lure related to educational material, which is a common tactic for phishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7945

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
  • Image-only document with action trigger (screenshot lure) medium PDF_IMAGE_LURE
    PDF has 1 image(s), only 0 text block(s), carries a click-outward action, and is only 42 KB — typical shape of a phishing lure where a full-page screenshot hides a clickable button that launches or submits to an attacker URL.
  • 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://medvor.ru/pbw?utm_term=prova+de+portugues+6+ano+substantivo+e+adjetivo+com+gabarito
    • https://static.s123-cdn-static.com/uploads/4469374/normal_5fe03939e8160.pdf
    • https://cdn-cms.f-static.net/uploads/4445331/normal_603424e39bf9f.pdf
    • http://negovijalulu.pbworks.com/f/44677167013.pdf
    • http://fuvesiwowegu.pbworks.com/f/memikitofuruwezun.pdf
    • https://uploads.strikinglycdn.com/files/37dcac20-fe36-40be-a216-ed5273d57ed1/jerigegij.pdf
    • https://uploads.strikinglycdn.com/files/03a6ede0-dd6f-4d92-869c-7ce78e532807/51874907620.pdf
    • https://uploads.strikinglycdn.com/files/a96846d5-9a9c-42a0-969d-d70105111c4b/70292275474.pdf
    • https://uploads.strikinglycdn.com/files/5cc2fdf0-d5a1-4104-936e-5700277bb6f3/zukeleketujunibulorubu.pdf
    • http://siruzosu.pbworks.com/w/file/fetch/144446325/34931637059.pdf
    • http://wozixokumo.pbworks.com/f/where_do_my_telegram_downloads_go.pdf
    • http://visetululiv.pbworks.com/w/file/fetch/144423117/79435374831.pdf
    • https://uploads.strikinglycdn.com/files/3dda3243-bf77-442d-b208-68d62b9bb73a/the_real_story_of_the_three_billy_goats_gruff.pdf
    • https://uploads.strikinglycdn.com/files/b3294301-5881-452f-9841-723dd0f12125/89765666180.pdf
    • https://uploads.strikinglycdn.com/files/25ed26f5-0558-4315-8bde-79e8daa0028f/7650007401.pdf
    • https://uploads.strikinglycdn.com/files/df14a50f-11d8-4a1e-8867-b6819e08e2bd/what_was_sundiata_keita_famous_for.pdf
    • http://mapijakemifo.pbworks.com/w/file/fetch/144459486/90_degree_counterclockwise_rotation_equation.pdf
    • http://jajisaparev.pbworks.com/f/how_to_charge_a_scosche_500k_micro_farad_capacitor.pdf
    • https://uploads.strikinglycdn.com/files/c82add21-beb8-490a-b18f-d202d87514cd/powermax_pm3-55_installation.pdf
    • http://sizolasipape.pbworks.com/w/file/fetch/144422367/direct_and_indirect_expenses_meaning_in_hindi.pdf
    • https://uploads.strikinglycdn.com/files/046c1a6f-9d4b-4ea6-b55c-4d0509664b65/kijabad.pdf
    • http://gogoporiwo.pbworks.com/w/file/fetch/144465150/how_to_make_your_own_photo_stickers_for_whatsapp.pdf

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