Malicious PDF — malware analysis report

Static analysis result for SHA-256 33458f693285adde…

MALICIOUS

PDF

84.5 KB Created: 2021-02-26 21:18:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-22
MD5: ea03b78c4d241200a5f1ee56eb8129c7 SHA-1: 17e4752d77f3a99bd7b7dd0677aa0e2664aad6ff SHA-256: 33458f693285adde6a3bc6813d8277a6cc89e9426886ec466b6e4ef13ceff90d
96 Risk Score

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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=can+you+put+a+kitchenaid+bowl+in+the+dishwasher PDF link annotation
    • https://cdn.sqhk.co/zekafomaze/gcVs6hf/free_cabinet_design_software_cnc.pdfIn PDF document text
    • http://segakibosuvi.22web.org/fezajelugijufuvesixodotuj.pdfIn PDF document text
    • http://retys.space/zegegutajagawebobugalabez4xv68.pdfIn PDF document text
    • http://gramnews.xyz/74398199754x0whu.pdfIn PDF document text
    • http://geesecam.com/93698181807i2vqw.pdfIn PDF document text
    • https://cdn.sqhk.co/zikegasenar/biaVjgr/5d_galaxy_live_wallpaper_iphone.pdfIn PDF document text
    • https://cdn.sqhk.co/mekibekowufe/ajeZvif/fanatical_football_apk_uptodown.pdfIn PDF document text
    • http://walkover.me/survival_simulator_mod_money_apkn0jo1.pdfIn PDF document text
    • http://closemaze.com/asia_pacific_map_templatewbvzc.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/napejaxosinages/bhojpuri_chhath_geet_hd_video.pdfIn PDF document text
    • https://s3.amazonaws.com/jazofi/sabimetunijef.pdfIn PDF document text
    • http://guziruxasa.epizy.com/31741800104.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/60578526367.pdfIn PDF document text
    • http://didazejitikav.rf.gd/63493702721.pdfIn PDF document text
    • https://s3.amazonaws.com/juzinaramip/whatsapp_status_2019_ke.pdfIn PDF document text
    • http://dibulazovila.rf.gd/runescape_fastest_99_fletching_guide.pdfIn PDF document text
    • http://lemijafuw.epizy.com/butedegakodaputovuveso.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fc78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC78 5464 bytes
SHA-256: 4fe8bd8198bbb894b31834cd87daa76a9b1e0bc7152bf92d94533bfb12dc2db3
font_01_sfnt_off00010f15.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10F15 11540 bytes
SHA-256: f4148bba99d984cfdd4fef9e5d18abd1a010e1489c17812cb601c82c6ab29810
font_02_sfnt_off00013601.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x13601 4324 bytes
SHA-256: 1062cd8ddf90f4344fa193b395386d5669df1a952e5759311ca261a71931f361

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