Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a99a08ca8d12b36…

MALICIOUS

PDF

91.5 KB Created: 2021-05-17 19:04:27 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: fc25c3578cd3afe3e7ee0c7d7819b670 SHA-1: be4d3609c5c10ee32f8b39a0d50ffd33aaa2d32e SHA-256: 8a99a08ca8d12b36f4b27ac78240f567ab77cb3f4082e9f28de087739f197de1
96 Risk Score

Malware Insights

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

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URLs suggest a phishing or malware distribution attempt, masquerading as popular content to entice users. Although no scripts were explicitly extracted, the PDF structure and embedded URLs are indicative of a malicious document, likely designed to redirect users to a compromised site or download further malicious content.

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 http://neuragen.ca/wp-content/plugins/formcraft/file-upload/server/content/files/16096ac30bcab8---bawaduv.pdf
    • https://matrainagycsalados.hu/userfiles/file/82219061755.pdf
    • https://www.northernillumination.com/wp-content/plugins/super-forms/uploads/php/files/402e585a4fbe90997bdcde776ea2cfcf/sebadarozujogafi.pdf
    • https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/ibd7qc3lor7g3363jp2vqp5q3t/besotofikedi.pdf
    • http://profisystem.ro/wp-content/plugins/formcraft/file-upload/server/content/files/1607435c9615d6---51248594648.pdf
    • https://www.femregenx.co.za/wp-content/plugins/super-forms/uploads/php/files/o6f9spfflrauen5e580tso3mig/zofor.pdf
    • https://www.harasportcenter.com/wp-content/plugins/super-forms/uploads/php/files/sssi5nt5ccb9kio36u4kf16fuo/varodojirowotekulu.pdf
    • https://nowbali.co.id/wp-content/plugins/formcraft/file-upload/server/content/files/160763d0a220ca---79097077729.pdf
    • http://www.elsecretodelolivo.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd51c3df81---goxagaxakebetujape.pdf
    • http://bilagroup.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606d3f2995714---vusiwetiwefowusib.pdf
    • https://wills.sg/wp-content/plugins/super-forms/uploads/php/files/3380affff3ff874f9c2e88b55f33f63e/63733257909.pdf
    • https://grafitpoint.ru/wp-content/plugins/super-forms/uploads/php/files/33016dfa2177159f1d755a359c23612b/nedabodagibajuki.pdf
    • https://batikatravels.com/userfiles/file/sojugap.pdf
    • https://kindliving.org/wp-content/plugins/super-forms/uploads/php/files/tmp/32926489051.pdf
    • https://best-turbos.com/wp-content/plugins/super-forms/uploads/php/files/a3430708627ed98125ea955968c3c788/2726942564.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://fedorahosted.org/lohit
    • https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/Om9ozkHLxGw/uplcv?utm_term=awdhesh+premi+ke+video++bhojpuri+gana
    • 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://scripts.sil.org/OFL
    • http://dejavu.sourceforge.net
    • http://dejavu.sourceforge.net/wiki/index.php/License

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f26a.bin
4c642fcb4665d0d3382bcf2ecaaacf4ddb477d1bccba818d0126071d62dfc0ca		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF26A 4036 bytes
font_01_sfnt_off000100be.bin
6a25b9dfd4fc7bb67e3f7b0d90c822e09f2bbbe7a2743c5c4091c9637bcc58e1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x100BE 5760 bytes
font_02_sfnt_off00011447.bin
757f9f5cf59884a3499934c6327c2c4e0aef6ed98a19b08fc85dd17d274581e4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11447 10724 bytes
font_03_sfnt_off00013945.bin
e9fe716c2abc985b12a899a49d5539e4e8be1b56d50c083b30290d85a2a7c848		 pdf-font-stream PDF embedded font (sfnt) at offset 0x13945 16092 bytes
font_04_sfnt_off00014e49.bin
08d8f86683bf5241a312fb8ecc31d1511ad000c6ece87a451c8dd2b5b382c825		 pdf-font-stream PDF embedded font (sfnt) at offset 0x14E49 4408 bytes

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