Malicious PDF — malware analysis report

Static analysis result for SHA-256 5906141bbfe5d165…

MALICIOUS

PDF

66.8 KB Created: 2021-03-21 21:47:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 1d3733d6f7a9c4601f0b3a72df25c700 SHA-1: 30d1db4cea0b032af61fb6d209f7984c4b1226e3 SHA-256: 5906141bbfe5d165e41e4b2ad3c276316efb301c9f1f2367499fd815567341c0
94 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to a suspicious domain, likely intended to deliver a secondary payload or phish for credentials. No scripts were extracted, but the presence of an external URI in a malicious PDF strongly suggests a phishing or downloader attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9676

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://resalured.ru/award?keyword=building+maintenance+management+book+pdf
    • https://cdn.sqhk.co/dubikureta/iPpN0dV/espn_plus_bundle_not_working.pdf
    • https://dasujodiket.weebly.com/uploads/1/3/4/4/134481559/5726462.pdf
    • https://jaluvipuruwagub.weebly.com/uploads/1/3/4/7/134734890/dokulata.pdf
    • https://cdn.sqhk.co/tiwumixe/6VDgcjc/30141114259.pdf
    • https://cdn.sqhk.co/tejilunuf/ViiCier/92881946229.pdf
    • http://antonioita.fun/limiting_reagent_worksheet_answer_key_with_workhutp8.pdf
    • http://unreguezff.rest/teri_meri_kahani_bodyguard_song_pagalworldxhhtp.pdf
    • http://zipubezexupoka.mywebcommunity.org/dejumawajijeno.pdf
    • https://cdn.sqhk.co/toromerepowa/jjKceAK/cops_and_robbers_2017.pdf
    • https://kugixixubeleji.weebly.com/uploads/1/3/4/3/134324677/e8541755c72f3.pdf
    • http://opit.space/brush_lettering_freeadxkc.pdf
    • http://mosquito.codes/curso_de_ingles_para_principiantesd7dsd.pdf
    • http://bamefidev.mygamesonline.org/naduj.pdf
    • http://wozupabalaviv.medianewsonline.com/fosivaraw.pdf
    • http://aarbuz.space/teacher_salary_nyc_charter_school1q1j4.pdf
    • https://cdn.sqhk.co/kitaparek/bn9Lje4/85458273553.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/napisakaluja/android_saga_vegeta_vs_frieza.pdf
    • http://bejanifezilo.atwebpages.com/tamosojojabadepamezi.pdf
    • http://makakanow.onlinewebshop.net/25111881858.pdf
    • https://s3.amazonaws.com/suximawo/63027297304.pdf
    • http://samajusinifako.atwebpages.com/fibedotezudujubi.pdf
    • http://mijovutotukedes.onlinewebshop.net/las_cantigas_de_santa_maria.pdf
    • http://scripts.sil.org/OFL

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f5ae.bin
71ae74f995d46bb414c76fa23dba4ed5b748dab1c683e707a603186c510a9ebc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF5AE 5456 bytes

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