Malicious PDF — malware analysis report

Static analysis result for SHA-256 0ed5ec4ab9571bbf…

MALICIOUS

PDF

74.2 KB Created: 2021-06-30 09:35:15 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 01125a344865de6b4be85df481a2783e SHA-1: 06ead37626a7aabd00f647a77797c8fec140f19d SHA-256: 0ed5ec4ab9571bbfd8e217d7a0f08ef348da7209e306f0fbc8e43a09e193b8c5
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. The presence of embedded URLs, specifically those pointing to other PDF files hosted on potentially compromised websites, suggests a phishing or malware distribution scheme. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of an attempt to redirect the user to malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9953

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 http://tribo.kz/userfiles/File/xiwopexapumo.pdf
    • https://staffxrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/496d47940b4619652ece7b8e824ebb74/geletefogozafijefeza.pdf
    • http://stylowa-pss.pl/userfiles/file/sepotekuxirexewume.pdf
    • https://n95america.com/wp-content/plugins/super-forms/uploads/php/files/bd70136bbf2d9e904fb4c80918a2a7b4/pasaxisapegalap.pdf
    • https://unosms.us/userfiles/file/disabivukodobixir.pdf
    • http://cedresarquitectura.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607b9932b3ecb---23175433997.pdf
    • http://kaufdeinauto.de/wp-content/plugins/formcraft/file-upload/server/content/files/1606d25933cfa2---86673326207.pdf
    • http://elonsummerstorage.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606da6d26ea22---62102182454.pdf
    • http://kondicionery-ivanteevka.ru/upload_picture/file/44411749615.pdf
    • http://zawayakw.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a87da96a4bf---gomujoruradowof.pdf
    • http://s-moonlight.com/CKEdit/upload/files/39142288651.pdf
    • https://www.endthestigmacounselling.com/wp-content/plugins/super-forms/uploads/php/files/35jh5hfjfaoeffo0dqbf5c4tgt/40007644268.pdf
    • https://dhcom.vn/userfiles/file/zibug.pdf
    • https://joyfool.art/wp-content/plugins/super-forms/uploads/php/files/58bb1dcf9cc0679be3f182fd6b164996/23745786973.pdf
    • https://panama4d.com/contents//files/xotomesazowifijotesakuki.pdf
    • https://uaqbakery.com/wp-content/plugins/formcraft/file-upload/server/content/files/160adec8f83901---35037823510.pdf
    • https://ph2020.org/FCKeditor/file/50136381317.pdf
    • http://www.minaakshimajumdar.com/fckimages/file/41774993984.pdf
    • http://alexanderkanevskyartistbiography.com/clientMedia/file/rejetesanixedamazukilet.pdf
    • http://komputerzagrosze.pl/userfiles/file/gujobudewaxolomopunonajo.pdf
    • https://grupahatak.pl/admin/_fck_files/file/40212042382.pdf
    • https://www.yoursurveysurveyors.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160ac6cad0b9bf---23399767469.pdf
    • http://exactblue.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c265bbf20f5---43291611653.pdf
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/6naE_Nh8_CY/uplcv?utm_term=2nd+mmr+vaccine+age
    • 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_off0000c2cf.bin
99a654522bc46be46e5af98d80c0dd720978dc2f0968493d0eb496471866a240		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC2CF 10368 bytes
font_01_sfnt_off0000da02.bin
012c734066e83678477231624b6a16489d8f48e71a7d78cf66bf3f690fdedbb3		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDA02 16196 bytes
font_02_sfnt_off000103d1.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103D1 16792 bytes

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