Malicious PDF — malware analysis report

Static analysis result for SHA-256 41ff0c8197996768…

MALICIOUS

PDF

114.2 KB Created: 2021-05-24 20:15:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0c18ae2ea6edf76259175cffd39caa3e SHA-1: 6d0a6dedc2d9af563d42e2df9e43550b4b56c10d SHA-256: 41ff0c81979967685ae817c52b390b4abac4c6e53e8c7c1c023f78524c451565
96 Risk Score

Malware Insights

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

The PDF document contains embedded URLs that lead to suspicious domains, indicating a phishing or malware distribution attempt. The ML classifier and ClamAV detection strongly suggest malicious intent. Although no scripts were explicitly extracted, the presence of external URIs and the overall detection by security tools point towards a phishing attack that likely leverages a malicious link to deliver a payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9995

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://archism.ru/uplcv?utm_term=goaliath+54%2527%2527+prodigy+in-ground+basketball+hoop+installation+instructions
    • https://www.hdcorp.com.br/wp-content/plugins/super-forms/uploads/php/files/d2ur7otolugu62hqfmjcm7s4al/17787982051.pdf
    • http://iideree.org/wp-content/plugins/formcraft/file-upload/server/content/files/1607bf1c04bdcf---83616874767.pdf
    • http://norilskgu.ru/userfiles/file/vuwutevasuwuxokogasafix.pdf
    • http://bfr-bialapodlaska.pl/userfiles/file/zumodekanozivojumoxeke.pdf
    • https://www.helpfulhunks.com.au/wp-content/plugins/formcraft/file-upload/server/content/files/1607f78d727f95---kuburoparex.pdf
    • http://ne-moloko.ee/wp-content/plugins/super-forms/uploads/php/files/1c309f8b186e970c8a632cdd809c244a/14891491453.pdf
    • https://rittenhousesmiles.com/wp-content/plugins/super-forms/uploads/php/files/f8df8012c5ab335acd70db70f4b6e2fe/42241989708.pdf
    • http://saptpadi.com/files/file/19871857399.pdf
    • https://caravanandre.it/wp-content/plugins/super-forms/uploads/php/files/1c7ef5acd723c2f355442de27907b563/14307413947.pdf
    • http://maychamsocda.vn/images/userfiles/file/57490633847.pdf
    • https://relleno-acidohialuronico.com/wp-content/plugins/super-forms/uploads/php/files/c8ed338e197cfde175469981615668a7/87903118609.pdf
    • http://www.belladermeestetica.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/16076912fb998b---81433933870.pdf
    • http://www.uppld.org/wp-content/plugins/formcraft/file-upload/server/content/files/16077182fdd91c---78265060320.pdf
    • http://dynamic1984.com/user_file/file/bevumojumi.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • 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/
    • https://savannah.gnu.org/projects/freefont/
    • http://www.gnu.org/licenses/
    • http://www.gnu.org/copyleft/gpl.html
    • http://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 6

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00012a23.bin
6ae3ab1adc9f8bf39663ffd3e151f238b57baeaf0bc49964570ee45a2cdde45d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x12A23 6508 bytes
font_01_sfnt_off00013a21.bin
6bf30c374139501b766099e80319e4e2b79924f2cd9ae6e5fc77763f8e4bbba0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13A21 5220 bytes
font_02_sfnt_off00014ca7.bin
412b02dc22f4b4264fdd5811b18f5695457092693cfee924ef0f834babc23fe9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14CA7 5952 bytes
font_03_sfnt_off000160fc.bin
017f16e1db8242469ac05c12bfd689e8dfd62911d2a60622c95e3e274a1bfd03		 pdf-font-stream PDF embedded font (sfnt) at offset 0x160FC 15892 bytes
font_04_sfnt_off000194e7.bin
ca32bde6e0cfbd8897ce46a8d57624907a26fe7e90d3daf43f7f90ae3dfbfe77		 pdf-font-stream PDF embedded font (sfnt) at offset 0x194E7 16324 bytes
font_05_sfnt_off0001aaad.bin
c215f25855dcbd68ecbdc9c7835efdcf5321c39328f688b0e7b9ba4f3087a6fd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1AAAD 6048 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.