Malicious PDF — malware analysis report

Static analysis result for SHA-256 b7d70f59dc75f491…

MALICIOUS

PDF

91.7 KB Created: 2021-07-03 19:14:39 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: e870e4b1e10393399c06a50ee7347c60 SHA-1: 68225eba8bd8ded52d471ce4937549a2d63500e5 SHA-256: b7d70f59dc75f49154dcb7bdbcfefa66561ece7aeeef080ed1b952080bf57d07
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains numerous embedded URLs, with one specifically noted as an external URI pointing to 'smidgel.ru'. The presence of these URLs suggests the document is designed to redirect users to potentially harmful websites, likely for phishing or to download further malicious content. No scripts were extracted, but the overall structure and URL findings point to a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9942

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://smidgel.ru/uplcv?utm_term=what+is+the+difference+between+a+food+web+and+a+food+chain
    • http://engroupe.ca/aym_image/files/28458831820.pdf
    • http://fsgzb.com/upfolder/e/files/20210627184603.pdf
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1608038965008f---xumumakovaguzelejedexi.pdf
    • http://greenbrier101.com/userimages/riwupedasisotirejadu.pdf
    • https://thehamptonsbloomington.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606f80683d0a7---94496920414.pdf
    • http://vincityhomes.vn/wp-content/plugins/super-forms/uploads/php/files/jka556bjg7ri37vd128hqekspi/tekapinixaxoj.pdf
    • https://abeess.com/userfiles/file/48012330703.pdf
    • https://bf-pomosch.ru/wp-content/plugins/super-forms/uploads/php/files/gbic6atva2ro1mela8v16e8dt0/ranududitiwenesadoje.pdf
    • https://abril.pe/wp-content/plugins/super-forms/uploads/php/files/ni1pjs42ha206kuegh0j67i91t/91219104579.pdf
    • http://af.ssla.ru/images/fornews/files/wapivegutupurezazizorane.pdf
    • http://urbanconstructions.org/images/uploadedimages/file/59213716913.pdf
    • http://ctkupavna.ru/upload/file/zipinusabidirewurasate.pdf
    • https://gauravkankariya.com/wp-content/plugins/super-forms/uploads/php/files/ccs9pvh0n2ikde2dv0k64m9ip3/ludal.pdf
    • http://maychamsocda.vn/images/userfiles/file/93731377883.pdf
    • http://www.skupp.pl/wp-content/plugins/formcraft/file-upload/server/content/files/16075ee3b3df2a---87980334256.pdf
    • http://ptk-astana.kz/wp-content/plugins/super-forms/uploads/php/files/d7debebec8b95c12c5f0f3bad888a292/sowejelu.pdf
    • https://adbetelparaguay.com/wp-content/plugins/super-forms/uploads/php/files/afadedafb3dd7efa0f5feb8fd9d70806/38507062649.pdf
    • https://sckstone.com/wp-content/plugins/super-forms/uploads/php/files/c27435f35b6cf167fc930f69e4f272c6/31161843890.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/160bf1b35af71b---vatovezigewemebewonol.pdf
    • https://www.expoagrogto.com/wp-content/plugins/super-forms/uploads/php/files/6tqr8avvtmjthqcrguc3vmumg1/lamitezuwixepilotifaker.pdf
    • http://archerelectricsupply.com/userfiles/file/fapejavewosak.pdf
    • https://tanasiri.com/piceditor/file/62743375250.pdf
    • https://www.ciabrini-immobilier.com/wp-content/plugins/super-forms/uploads/php/files/co1ohq29ut1ua2lvk3h3fk2bfi/27468205037.pdf
    • https://www.potterycommercials.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/16086eed0e82d4---3403216214.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://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000ff8b.bin
5cfc616d5c2fb70b17360c5a29a66bd2b029bcb0470146f90ebf67ef84c071b2		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFF8B 18544 bytes
font_01_sfnt_off00012fef.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12FEF 16792 bytes
font_02_sfnt_off00014806.bin
b638477f33230db43dc2bdd3421a9e105345c14c5b296568bd2d983316bfc2ee		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14806 10744 bytes

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