Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e01a1e5978e49bd…

MALICIOUS

PDF

84.8 KB Created: 2021-06-28 01:45:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 7e46db6ba50f96d25b7e1097fae45fce SHA-1: 79c951731ed3ae67f4c3823ba41ac95f83259570 SHA-256: 1e01a1e5978e49bdb608d9088d913b380878802f2b06c04c491f020ac358771d
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file was flagged by a machine learning classifier and ClamAV as malicious, indicating a high likelihood of malicious intent. The embedded URL heuristic suggests the document is designed to redirect users to external sites, likely for phishing or malware distribution. Although no scripts were explicitly extracted, the PDF structure and heuristics point towards a phishing lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9956

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://transpack-krumbach.de/_upload_bilder/_filemanager/file/jigejojusogaxuzudovefaga.pdf
    • http://aaaexpressac.com/userfiles/file/gizomiberebor.pdf
    • https://flylights.pl/wp-content/plugins/super-forms/uploads/php/files/ebsbkohi1g5kdjeodr5f32vu0p/13634974410.pdf
    • http://omonetach.pl/foto/ilustracje/file/46605897495.pdf
    • http://www.homefacelifters.com/wp-content/plugins/super-forms/uploads/php/files/227dee1b96cb73b6895e15acb93312da/pogobogezov.pdf
    • http://baovevietnam-vnss.com/upload/file/51147462156.pdf
    • http://vuatoyen.com/uploads/userfiles/file/11183455557.pdf
    • http://atol-res.pl/uploads/file/8762187380.pdf
    • https://gpagroup.in/wp-content/plugins/formcraft/file-upload/server/content/files/160a6d60294b87---ripugiwugifiv.pdf
    • https://alcc.vn/wp-content/plugins/super-forms/uploads/php/files/e9v9ec16qu2gnjtoojlhlr539o/dogizaxokolorabejumej.pdf
    • http://palami.by/images/file/61801060332.pdf
    • http://www.bridalchapel.com/wp-content/plugins/formcraft/file-upload/server/content/files/160aa189f965eb---patigeko.pdf
    • http://www.webtony.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160a94efc39126---72128544601.pdf
    • http://sns-russia.ru/userfiles/file/11754543224.pdf
    • https://whitelightdesign.com/wp-content/plugins/super-forms/uploads/php/files/bf0280017e2021b4a7aaa0511164e694/jopebunebevibanedovar.pdf
    • http://peaceinsrilanka.lk/userfiles/file/12858570138.pdf
    • https://advance-pack.com/editor_upload/file/47063095320.pdf
    • http://theettiaresottawa.com/clients/e/e8/e8f54e69a7463df9fd0adff13cd8e90f/File/90372190103.pdf
    • http://luchetti.it/userfiles/files/15079223543.pdf
    • http://stroisvias.ru/userfiles/file/matimiwawaf.pdf
    • http://greece-ex.com/images/blog//file/71086308782.pdf
    • https://bustotoronto.com/userfiles/file/velorareb.pdf
    • https://www.gml.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd8b2cc62c---17889284596.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/1xuhb7AK25c/uplcv?utm_term=i+wish+we+could+have+met+under+different+circumstances
    • 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_off0000e52a.bin
34d1b21a38d71e6fdb4d29c9f81bbdea93ebb72c4727bc981c169f34b687409a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE52A 10944 bytes
font_01_sfnt_off0000fe65.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE65 16792 bytes
font_02_sfnt_off00011677.bin
ac4edb688e728fba79dfcf0583d1de634ab532bb4253e409642a4a15e20d4510		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11677 18292 bytes

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