Malicious PDF — malware analysis report

Static analysis result for SHA-256 89545e44225f4b78…

MALICIOUS

PDF

82.0 KB Created: 2021-03-20 07:15:11 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 93a52185a195da33ba58992d06f2da86 SHA-1: 759d1d2bbf14a57512d22fea913363a5f5ca016d SHA-256: 89545e44225f4b78dbfc3d55ea9109bffc26cffd0de5355dec8d2bb7c2ec9cef
96 Risk Score

Malware Insights

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

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The document body, though partially corrupted, contains text suggesting it's a lure for a search query, directing users to the external URL https://baarspo.ru/wix. This URL is likely used to deliver a malicious payload or redirect to a phishing site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://baarspo.ru/wix?keyword=overwatch+to+osu+sensitivity+converter
    • https://cdn-cms.f-static.net/uploads/4419827/normal_6021a5a47d984.pdf
    • https://cdn.sqhk.co/goseluna/VPhfbge/77850324677.pdf
    • https://cdn-cms.f-static.net/uploads/4421038/normal_604cfb91ee607.pdf
    • http://zokidinodajives.getenjoyment.net/jefit.pdf
    • https://cdn-cms.f-static.net/uploads/4387035/normal_604d49d3dd108.pdf
    • http://fosonelotila.medianewsonline.com/jiwovovugowidiletajexoge.pdf
    • http://volulolusawaz.mygamesonline.org/railway_reservation_application_form.pdf
    • http://xelibirujegid.mywebcommunity.org/32161152048.pdf
    • https://cdn.sqhk.co/kevovevude/hjgg9hf/mob_psycho_100_psychic_battle.pdf
    • https://cdn-cms.f-static.net/uploads/4379476/normal_603c706426fdd.pdf
    • https://cdn-cms.f-static.net/uploads/4470836/normal_60183f6759df0.pdf
    • https://static.s123-cdn-static.com/uploads/4419425/normal_5fe141bd44a6b.pdf
    • https://cdn.sqhk.co/wofetewa/dyXthia/extreme_personal_voice_assistant_pro.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tesodagiwor/nezesunedukude.pdf
    • http://darajakejaxise.rf.gd/lesuzetexerijulu.pdf
    • https://s3.amazonaws.com/piradi/starbucks_caffe_latte_nutrition_information.pdf
    • http://mudotepejix.epizy.com/firth_of_thames_fishing_report_2018.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_off000100dc.bin
9d09895854f577138105a58a3cc623a82d5de0cab93fb88300afa4b23a44d355		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100DC 5136 bytes
font_01_sfnt_off00011267.bin
6fa5cf9c99b5ddbb2fbe15d675717d779b37ed788f9cc941e8205a57fa2dfebd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11267 11952 bytes

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