Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca0e75fedd5f621f…

MALICIOUS

PDF

81.9 KB Created: 2021-04-04 03:05:12 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 02ee056f64231442edb7a4624686c02c SHA-1: b2fbb5f5813b172f7cfea0ab6f7b61931aa5fc15 SHA-256: ca0e75fedd5f621f758be3239a5e8633632dcced228d6ad8dedc50edaadf3869
96 Risk Score

Malware Insights

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

The file is a PDF document that contains embedded URLs, one of which is identified as a potential phishing lure. The ML classifier and ClamAV detection strongly indicate malicious intent. The presence of embedded URLs suggests the document is designed to redirect the user to external malicious sites, likely for phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 4

  • 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
  • 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://zajinet.ru/strik?utm_term=remington+700+stock+upgrades
    • https://jizetexosobuwek.weebly.com/uploads/1/3/0/7/130740437/zotamoxelipak-tebiti-zebasikar-xizefisuza.pdf
    • https://cdn-cms.f-static.net/uploads/4452376/normal_603d0af98d3f0.pdf
    • https://static.s123-cdn-static.com/uploads/4464710/normal_5ffbe794800c7.pdf
    • https://pazumufavizup.weebly.com/uploads/1/3/4/5/134506393/24180c18.pdf
    • https://static.s123-cdn-static.com/uploads/4418575/normal_6006a822875bd.pdf
    • https://cdn.sqhk.co/jofutagi/e9Ihgie/escape_the_mansion_online_game.pdf
    • http://xarusogu.22web.org/tidemozo.pdf
    • https://cdn.sqhk.co/wotudasigeb/b0yHAgh/94007291934.pdf
    • http://viniveba.mywebcommunity.org/gifawetuwena.pdf
    • http://moxilekulina.getenjoyment.net/mazojoromoxaxumu.pdf
    • http://lomidal.mygamesonline.org/92686237850.pdf
    • https://cdn.sqhk.co/gobajejuz/gja20cZ/liwufituzamijazon.pdf
    • https://cdn-cms.f-static.net/uploads/4410015/normal_60186e9c8efd8.pdf
    • https://cdn.sqhk.co/fafujedajir/nhe00DD/torn_labrum_surgery_recovery_time.pdf
    • https://faraxebeg.weebly.com/uploads/1/3/4/4/134475962/4258005.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://pugetuwozijeso.rf.gd/pays_capitale_monnaie.pdf
    • http://luxupovokajaf.onlinewebshop.net/craftsman_garage_door_manual_release.pdf
    • http://xiniwipilanaju.atwebpages.com/time_value_of_money_solved_problems.pdf
    • http://jexusapije.epizy.com/14014641426.pdf
    • http://beturatigamoli.epizy.com/example_of_grading_sheet_in_college.pdf
    • http://zarilapaserit.rf.gd/xuroxujezokilitano.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f3cd.bin
966ee9681082254174a75dac1bef4872adabf8dfec47a6adf5a5cbf4f60499bb
pdf-font-stream PDF embedded font (sfnt) at offset 0xF3CD 5536 bytes
font_01_sfnt_off00010691.bin
38c94232bc8efed1022f3791b2d070dcba74ea08f00909d5844e76fefc0177cb
pdf-font-stream PDF embedded font (sfnt) at offset 0x10691 10592 bytes
font_02_sfnt_off00012aa6.bin
ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3
pdf-font-stream PDF embedded font (sfnt) at offset 0x12AA6 4324 bytes