Malicious PDF — malware analysis report

Static analysis result for SHA-256 1177cd86e1ec27cd…

MALICIOUS

PDF

72.8 KB Created: 2021-03-29 05:11:56 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 89f1c6f13c564d8c35403fc75163e48b SHA-1: d484d784a8df5807c447dc45c45752bd45abd81a SHA-256: 1177cd86e1ec27cdb4ad049435ade558da6e8747bbc383184f7c5f9dac1002ba
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, likely for phishing or malware distribution. ClamAV and ML classifiers identified this PDF as malicious, specifically as a phishing trojan. The document body, though partially corrupted, suggests a lure related to 'sheet music', aligning with the phishing attack pattern.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9991

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
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://soxebez.ru/123?utm_term=scotland+the+brave+bagpipes+sheet+music
    • http://doxalasi.mywebcommunity.org/zefor.pdf
    • http://jupowawixiz.iblogger.org/49551449732.pdf
    • http://jujesunojos.22web.org/procare_humidifier_filter_wf813.pdf
    • http://nijewogifuzazi.mypressonline.com/dorujezu.pdf
    • http://nedaxavipotu.22web.org/togekepanurixomere.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/rovuweraja/onkyo_tx-nr515_arc_not_working.pdf
    • http://gajumelixidolob.epizy.com/91577889978.pdf
    • https://s3.amazonaws.com/pivetuzadujo/14294860003.pdf
    • http://kibiviridox.epizy.com/4th_grade_math_subtraction_worksheets.pdf
    • https://s3.amazonaws.com/fonazuzixagizir/amar_ou_depender_walter_riso_free_download.pdf
    • https://s3.amazonaws.com/pazatuv/zidamazini.pdf
    • https://s3.amazonaws.com/fujadabez/browsec_premium_mod_apk_0._27.pdf
    • http://balepififeri.rf.gd/15115686437.pdf
    • http://zewuxulaza.rf.gd/trends_in_educational_management.pdf
    • https://s3.amazonaws.com/jixerubowi/mubarevavuteluzitiniw.pdf
    • https://s3.amazonaws.com/jezaxojipevu/favuwewegagujemibobolo.pdf
    • http://segegilomojok.epizy.com/70488123593.pdf
    • https://s3.amazonaws.com/pafexegud/brrrr_calculator_spreadsheet.pdf
    • http://xofaxisenulomav.epizy.com/tezopekaxadoxozelixamepo.pdf
    • http://gerobuzu.epizy.com/62703152763.pdf
    • https://s3.amazonaws.com/zafibimutadoti/android_app_wlan_passwort_auslesen_ohne_root.pdf
    • http://wezovekoxawotez.rf.gd/comcast_remote_codes_5_digit_for_element.pdf
    • http://tufebogepamik.rf.gd/bombitup_for_pc.pdf
    • http://vuropomap.epizy.com/party_with_bhoothnath_song_pagalworld._io.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dd22.bin
df82400c9d8724db6b5009de284619c569a15694c7ecf8d554814688734af03b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDD22 5792 bytes
font_01_sfnt_off0000f0b0.bin
62177a11e257b3ee0ccd5a34281e0a1ebbcc643c3def9253f9dea34dfcae8b15		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF0B0 10988 bytes

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