Malicious PDF — malware analysis report

Static analysis result for SHA-256 c46fe00b32ccd67d…

MALICIOUS

PDF

80.6 KB Created: 2021-03-14 06:01:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 2330c0a712aabe36e9781fad1170def6 SHA-1: 9476d1ab23d3f945e2e05bc50d3eba0db1b2b1d5 SHA-256: c46fe00b32ccd67d40b7405fce57eed2c80b57ffb53f424e072e8d96496fef83
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 'lozipotod.ru', which is likely a malicious domain used to host a secondary payload or phishing page. The document body, though heavily obfuscated, suggests a lure related to an 'Ishihara colour blindness test'. No scripts were extracted, but the presence of external URIs and the malware detection strongly indicate a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9967

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://lozipotod.ru/award?keyword=ishihara+colour+blindness+test+24+plate+pdf
    • http://flymoney.net/cell_dbz_1st_form5iqrt.pdf
    • https://cdn-cms.f-static.net/uploads/4404757/normal_602c3ca64693b.pdf
    • http://vamoktin.ru/526535303097wdk5.pdf
    • http://vinnipoh.space/2344768447dxc6c.pdf
    • http://donbetosstreettacos.com/46955468074rr5p7.pdf
    • https://static.s123-cdn-static.com/uploads/4470830/normal_5fdf7ab279d5b.pdf
    • http://stat-index-co.com/dyson_dc25_spare_parts_australiazpgy1.pdf
    • https://cdn-cms.f-static.net/uploads/4426063/normal_602517741d8cf.pdf
    • http://fastgetme.online/kusokito1qr0s.pdf
    • http://steblin.pro/73978434343do33c.pdf
    • https://rorefogalo.weebly.com/uploads/1/3/0/7/130776605/5688181.pdf
    • https://cdn-cms.f-static.net/uploads/4491155/normal_60242e7f43c24.pdf
    • https://naruvemekojesez.weebly.com/uploads/1/3/4/6/134685524/4206441.pdf
    • http://sallely.xyz/compute_the_number_of_units_in_ending_inventory_on_march_31guk5u.pdf
    • http://boost-shop.xyz/what_are_the_rules_for_high_school_softballtghkr.pdf
    • https://rewazute.weebly.com/uploads/1/3/4/6/134648352/3822377.pdf
    • https://tuwebuliwarukor.weebly.com/uploads/1/3/5/4/135400964/5dad5e251665918.pdf
    • http://wersita.fun/ematic_digital_converter_box_with_led_display_and_recording_capabilities_-_black_at103bdryed.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://sujevulakaginig.rf.gd/capitalismo_industrial.pdf
    • http://titomukoma.rf.gd/wupilefirijosadili.pdf
    • http://dogelatam.rf.gd/thinkcentre_m700_beep_codes.pdf
    • https://s3.amazonaws.com/xumakomowi/salento_puglia_travel_guide.pdf
    • https://s3.amazonaws.com/wamatasamegu/gufikexe.pdf
    • http://kerojuluped.epizy.com/37285879089.pdf
    • https://s3.amazonaws.com/senodiw/ashish_sharma_song.pdf
    • http://fadakivok.rf.gd/aplikasi_ccleaner_pro_apk.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_off0000f9fd.bin
2c139863705572dcb98e1377a31baf1e5c451aa7ce488d304f04321323d7fa8e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF9FD 5540 bytes
font_01_sfnt_off00010ccd.bin
940ce25d69ec7cb1f916f0293f6f1a3bb6e4fb84315499730fbc518c43c2c2e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10CCD 11940 bytes

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