Malicious PDF — malware analysis report

Static analysis result for SHA-256 c19e9defdc810edf…

MALICIOUS

PDF

79.7 KB Created: 2021-02-18 04:12:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 195760a5ab2b8376df1c7981f03a5ed9 SHA-1: ef6e7925bb18401452341faa715d928c0e787dcc SHA-256: c19e9defdc810edf4930976da458c72d53d5ee8399296ea11d8eb0bc20f5d6aa
96 Risk Score

Malware Insights

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

The PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains an embedded URI pointing to 'maypoin.ru' which is likely a phishing lure. While no scripts were explicitly extracted, the PDF structure and embedded URI suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further malware delivery.

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://maypoin.ru/wb?keyword=peterson%20field%20guides%20pdf PDF link annotation
    • https://cdn.sqhk.co/zepipawetopi/d2r8ZuH/crush_ball_smash_color_stacking.pdfIn PDF document text
    • https://cdn.sqhk.co/lilomovetum/ghiNih5/car_ac_repair_near_me_now.pdfIn PDF document text
    • http://compte-cmbretagne.best/vidiq_plugin_chromegs5ap.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467945/normal_600b770f325cf.pdfIn PDF document text
    • https://cdn.sqhk.co/guzamuvi/3IpA5YH/59042150420.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4461766/normal_5fe7ceb2ac7b7.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4382629/normal_5fdc972097346.pdfIn PDF document text
    • https://cdn.sqhk.co/gabamulijawe/27gcOgO/vadazuwulupunub.pdfIn PDF document text
    • https://cdn.sqhk.co/zifuvifiweva/kgfD85S/40274930613.pdfIn PDF document text
    • http://rodsfish.club/7531532983l6x2o.pdfIn PDF document text
    • https://cdn.sqhk.co/rewazexi/zXjgusB/stick_cricket_super_league_tips.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4422135/normal_6017571369a16.pdfIn PDF document text
    • https://cdn.sqhk.co/rukokota/gf4dnjf/birisozuxapanefuraruxu.pdfIn PDF document text
    • https://cdn.sqhk.co/pifonode/5jbjij3/sound_meter_app.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4472188/normal_6019f0d16384d.pdfIn PDF document text
    • http://docita.fun/how_to_do_percentages_in_google_sheetsbii0a.pdfIn PDF document text
    • http://onlineeshop24.xyz/la_panza_es_primero_riusjyjn8.pdfIn PDF document text
    • https://cdn.sqhk.co/wofunukasu/hhRrge4/gejetir.pdfIn PDF document text
    • https://cdn.sqhk.co/lisutovudaf/Kzqhhgi/cartoon_video_free_download_site.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000fbb2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBB2 5000 bytes
SHA-256: c8266739a638325f702048c4177adca2e482146b28175c29136a6e54061e38db
font_01_sfnt_off00010cc6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10CC6 10840 bytes
SHA-256: 07c783807456045e7c2e1b871cb79b60de9aa5375fa0af373cd7e8b41662ecf3

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