Malicious PDF — malware analysis report

Static analysis result for SHA-256 b219457cdf30154e…

MALICIOUS

PDF

85.6 KB Created: 2021-03-24 23:50:55 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 96434a8c971a596ba77352f4ac74943f SHA-1: 3d27a3684f61b69ad09f4375c4b31d2fef11a485 SHA-256: b219457cdf30154efe999c02ef77e509537b2404c87863e2339ae872b5c5a24c
96 Risk Score

Malware Insights

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

The PDF file was flagged by multiple heuristics and a machine learning classifier as malicious, with ClamAV identifying it as a phishing trojan. The document body, though heavily obfuscated, contains text related to a 'sport watch' and includes a suspicious external URI pointing to 'botokaw.ru'. This suggests a phishing lure to a site that may host further malicious content or collect user credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://botokaw.ru/strik?utm_term=zegarek+sportowy+casio+ga-100-1a4er
    • http://wavasupedip.22web.org/towigegenevokukimavili.pdf
    • https://cdn.sqhk.co/wojipezusax/je6WZid/bopibut.pdf
    • https://cdn.sqhk.co/zafowavo/hb8jfhf/gitejijajerazuxa.pdf
    • https://cdn.sqhk.co/vujejanar/gijhcbt/84673306600.pdf
    • https://cdn.sqhk.co/nanubebebot/7jhgd5Q/samsung_cloud_gallery_backup.pdf
    • https://cdn.sqhk.co/sixitigoxeto/g8hengj/jewab.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://s3.amazonaws.com/jesidofefe/jewumopexizevawas.pdf
    • https://3f46bf15-0a8c-4e80-b3e5-a2e3bf90e008.filesusr.com/ugd/8e6e76_2dd7e7315e7d4e3ab8af7d8610b2c58a.pdf?index=true
    • https://s3.amazonaws.com/wegugus/quran_bangla_pronunciation_translation.pdf
    • https://99516632-72ce-40f3-a9a1-a01c91361c65.filesusr.com/ugd/e42c35_a1698a79f4b24a99acc16a56815301f3.pdf?index=true
    • https://uploads.strikinglycdn.com/files/9c98cbfc-7408-43a3-8cc9-67760bf005e3/2015_toro_timecutter_ss5000_reviews.pdf
    • https://s3.amazonaws.com/resixexi/attacked_crossword_answer.pdf
    • http://dafudezukixoz.epizy.com/24119298674.pdf
    • http://podedubo.epizy.com/vexinupedimaxibiluxofun.pdf
    • https://uploads.strikinglycdn.com/files/d011487f-59cb-4fc6-919a-1e9187569560/kitchenaid_professional_600_parts.pdf
    • http://pumumiz.epizy.com/lose_yourself_guitar_tab.pdf
    • http://dajovomofoziso.rf.gd/acc_aha_cholesterol_guidelines_made_simple.pdf
    • https://7162f0c1-3bb2-4775-9ad2-1e34613fb889.filesusr.com/ugd/595093_118d0fc8c91a46feacc8aaa55e34b3df.pdf?index=true
    • https://uploads.strikinglycdn.com/files/8ca543e4-71d5-40f7-a8c0-be78ec3ae07d/how_to_reboot_an_old_kindle.pdf
    • https://s3.amazonaws.com/nuruvapozixix/70339597324.pdf
    • https://c931c956-7f53-4e4e-96dc-27d7f003ba63.filesusr.com/ugd/b80c10_8630d64496cf4479810f48fb1cf3d1ae.pdf?index=true
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000efd1.bin
ea7714c84fb0b50ee7d8c82f3902bf80bbd237c76ba3bb0fc1f4963c3c65dfc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEFD1 5280 bytes
font_01_sfnt_off00010209.bin
55c19ff2680618d1561e769add4e458438665b910e2a0dc10df299288b451bf6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10209 11936 bytes
font_02_sfnt_off000127ff.bin
a6426ce9104bff68f27a4ce252a4b0de3bad8bbf739fefb02979ea2c54ae559c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x127FF 16680 bytes
font_03_sfnt_off00013e6c.bin
1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13E6C 4324 bytes

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