Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a8970a5f1aeb918…

MALICIOUS

PDF

114.4 KB Created: 2021-06-29 11:20:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: d81173bccb024dd6ae126305df53f448 SHA-1: fd7122e556b3284fc3e42c8dcbd22e0ebcf22174 SHA-256: 7a8970a5f1aeb91869fbcc68edd516dd52da40b8411cc286c1594f9fdff4c705
104 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded JavaScript and an external URI pointing to a suspicious domain. ClamAV detection and ML classification strongly indicate malicious intent. The embedded JavaScript likely facilitates the redirection to the external URL, which is a common tactic for phishing or malware delivery.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9859

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Embedded JS stream low PDF_JS
    PDF references a /JS stream. Generic JavaScript is common in benign forms; specific dangerous APIs are scored by separate rules.
  • 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://queure.ru/uplcv?utm_term=om+mangalam+song+mp3+download
    • https://www.temsilcifirsatlari.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607d2cbc1de58---62640139623.pdf
    • https://beautifullifeuk.com/wp-content/plugins/super-forms/uploads/php/files/f74a19d6514c59305996db84d2848df9/godozovusaxetelivoxibod.pdf
    • http://automotiveenergy.cz/userfiles/file/zamofiw.pdf
    • https://www.chauffeur-prive-nice.fr/wp-content/plugins/formcraft/file-upload/server/content/files/16080a235ee711---97107835686.pdf
    • https://www.quatainvestimentos.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160745f677c8ec---modazefibadatunu.pdf
    • https://christianklein.eu/Quansis/ckfinder/userfiles/files/sazukixofoxefawuj.pdf
    • http://amfmeg.org/wp-content/plugins/formcraft/file-upload/server/content/files/16096df8fb975d---6592346538.pdf
    • http://www.nowsingapore.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/1607a3861f3514---77935224518.pdf
    • http://skuplaptop.pl/wp-content/plugins/formcraft/file-upload/server/content/files/1607ca5758eede---57695849143.pdf
    • http://machinegroup.ru/img/outer/files/ferasodobumuwefi.pdf
    • http://www.northeastmarquees.com/wp-content/plugins/super-forms/uploads/php/files/0c3085c411efccbdb29f45322cb2a9c3/sojabuwojali.pdf
    • https://husvagnsexpo.se/wp-content/plugins/formcraft/file-upload/server/content/files/1607f928fb025e---27487931816.pdf
    • https://genegurumiraclehealer.comuserfiles/file/88637429231.pdf
    • https://tfnd.org/wp-content/plugins/super-forms/uploads/php/files/f1f0bb8756598ba8cb3c76e2a4ceee2d/41840506541.pdf
    • http://smflow.in/admin/uploads/file/busatosi.pdf
    • https://vetranhtuongmamnon.vn/wp-content/plugins/super-forms/uploads/php/files/1fc2pcq7ustsgdivdha9qhkd7p/jixemukodugukumukekusiw.pdf
    • https://yuktiedu.com/wp-content/plugins/super-forms/uploads/php/files/14957154c877c5bd0c35e5a34dfb9308/99305479877.pdf
    • https://www.saenger-ohg.de/wp-content/plugins/formcraft/file-upload/server/content/files/1607100f556b9f---mijijeg.pdf
    • https://arvikabc.com/images/uploadedimages/file/1921598886.pdf
    • http://plusbateria.com/wp-content/plugins/formcraft/file-upload/server/content/files/160b5c0dfc978c---bozubawejepoxenororitoro.pdf
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608a37e8af16b---susevixefadevib.pdf
    • https://mrmobilewebsite.agency/wp-content/plugins/super-forms/uploads/php/files/926d5c2f343febf634017441a9409a48/31047924530.pdf
    • http://cageart.ca/wp-content/plugins/formcraft/file-upload/server/content/files/1607e597141783---dupiko.pdf
    • https://www.coconutlodge.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cea122672b---21864332761.pdf
    • https://soyana.de/js/ckfinder/userfiles/files/gadobi.pdf
    • https://izharfoster.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607146c8b2adc---nigewofafobudugik.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_off00015f1a.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x15F1A 16792 bytes
font_01_sfnt_off00017731.bin
13a10ba9f214e8fed7ef562138a7ada997892680cf1115a3d786d9639eec6e19		 pdf-font-stream PDF embedded font (sfnt) at offset 0x17731 10596 bytes
font_02_sfnt_off00018f43.bin
74a798fbe5e6f4f0ecc06ce25860f1b3c4f6b8ec7e775e0a20f254b784510a88		 pdf-font-stream PDF embedded font (sfnt) at offset 0x18F43 17324 bytes

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