Malicious PDF — malware analysis report

Static analysis result for SHA-256 0f835b74514896b9…

MALICIOUS

PDF

73.5 KB Created: 2021-06-25 21:58:46 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 5.11.3)
MD5: 4c9f6ee90657e7da0cfd419ff2c33aef SHA-1: d2472b40605e785496f21e15838a0128d13f8623 SHA-256: 0f835b74514896b9a808960f118494f3a7af30ef6130e8a5edb0b8e6918c79a3
116 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links, one of which points to a raw IP address, indicating a potential attempt to host malicious content. The ML classifier and ClamAV detection strongly suggest malicious intent, likely related to phishing or malware distribution. No scripts were extracted from this sample, but the presence of suspicious URLs and high detection scores warrants a high confidence assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9951

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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://trendybiz.in/usersfiles/file/veganojexepemi.pdf
    • http://www.1000ena.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607c8d7789af4---fopumamexas.pdf
    • https://choiceenergynetwork.com/wp-content/plugins/super-forms/uploads/php/files/6df1dd7da2dc8020137b9b47939b2018/81921418948.pdf
    • https://pasarantogel2.com/contents//files/xozatofeji.pdf
    • https://www.baptistenhardenberg.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160948593600cd---putilupobak.pdf
    • http://apsara.ru/userfiles/file/65863882642.pdf
    • https://bouveau-consulting.com/userfiles/file/93432864992.pdf
    • https://aldea.work/wp-content/plugins/super-forms/uploads/php/files/9dbadb038e7b7e50c51a9ff6b2de15d4/vilupawa.pdf
    • http://www.jimenez-casquet.com/wp-content/plugins/formcraft/file-upload/server/content/files/160c86ee85d2da---67034852800.pdf
    • http://nakamurasangyou.jp/app/webroot/uploads/files/morekokitukoje.pdf
    • http://limpiasol.com/wp-content/plugins/formcraft/file-upload/server/content/files/160a277cab8c87---8105834300.pdf
    • http://anhbanglaw.com/userfiles/file/feboda.pdf
    • https://www.avenueroadadvertising.com/wp-content/plugins/formcraft/file-upload/server/content/files/16077f2fe36123---75308289996.pdf
    • http://www.dadosefatos.net.br/wp-content/plugins/formcraft/file-upload/server/content/files/1607a254e432e3---nagilorodilusuxoguguji.pdf
    • http://jplus-ag.com/upload/files/BodyFile__60D03F4D7722B.pdf
    • http://springswellness.net/wp-content/plugins/formcraft/file-upload/server/content/files/160720a5acb4f4---40858819836.pdf
    • https://workinhotel.com/upload/fckfile/9663592847.pdf
    • https://www.lorenzofranzone.it/wp-content/plugins/super-forms/uploads/php/files/b27b6d4c74b5c2ee1584a4fe6526523a/zogaxexefupokodu.pdf
    • http://poltinik.ru/userfiles/file/gefukigovadodixoger.pdf
    • http://www.insurancedirectcanada.ca/wp-content/plugins/formcraft/file-upload/server/content/files/160a65c171bab4---jakevijagililawodarabi.pdf
    • http://uticahighclassof78.com/clients/8/89/89c70e22fe5ad1405280b455f64975d7/File/bozogolafenusogituxafes.pdf
    • https://www.die-umzugsfabrik.com/wp-content/plugins/formcraft/file-upload/server/content/files/16079bb0bbe9cd---nusuretoselijogaf.pdf
    • http://104.156.58.56/~web2inbox/wp-content/plugins/formcraft/file-upload/server/content/files/160c00ce0db737---dikonejodopobu.pdf
    • http://penoplex24.ru/wp-content/plugins/formcraft/file-upload/server/content/files/160b7ed6b85853---vudatobamogipin.pdf
    • https://feedproxy.google.com/~r/Uplcv/~3/BvfzZFkJO3s/uplcv?utm_term=indian+chop+house
    • 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_off0000c19f.bin
9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC19F 16792 bytes
font_01_sfnt_off0000d9b1.bin
ee1d7a69b1ca981e99ad17726afa5a76871cdcffb212afea3effdd5bc79f4055		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD9B1 15484 bytes
font_02_sfnt_off00010181.bin
6ee386bd5d78b62dac302aee064e54d23d486d4a21d0a74b3892cf106a39994b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x10181 10420 bytes

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