Malicious PDF — malware analysis report

Static analysis result for SHA-256 fa4dc063a42acd2a…

MALICIOUS

PDF

81.4 KB Created: 2021-04-30 21:55:33 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0b9064844a90126773605d543bffffc2 SHA-1: c938ec23f5fa9e20c9dca749f6d27396f798c9c8 SHA-256: fa4dc063a42acd2a72c05e747d99df656a134b443b65f3128714c98cabcc7583
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The file was detected as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. The embedded URLs suggest a phishing attempt, likely masquerading as a scholarship form to trick users into downloading further malicious content. No scripts were extracted, limiting the analysis of specific execution behaviors.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://phenix-security.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1608ae43dd13e0---16289721172.pdf
    • https://eandjfamilyhealthcenter.com/wp-content/plugins/super-forms/uploads/php/files/2fd3289ad26e697b383eb326de587095/morewazis.pdf
    • https://pyhm.ca/wp-content/plugins/super-forms/uploads/php/files/d2svbva85mb1ch6gg17gv6ln30/veboza.pdf
    • https://www.urban-quartz.co.uk/wp-content/plugins/super-forms/uploads/php/files/e45e5ea0a40c87e6e3530eda59278043/34987057694.pdf
    • https://www.landalastadservice.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cb02de5c7d---sijesukibuzegileke.pdf
    • http://www.kmclogistics.com/wp-content/plugins/super-forms/uploads/php/files/29c4ba6159978a1ed6706cb553cd9c27/99819515542.pdf
    • https://www.dishdivvy.com/wp-content/plugins/super-forms/uploads/php/files/f4b3859939d735edcc15462380d73d52/pipanijiwigi.pdf
    • https://www.sussexweddingservices.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/1606cad5c977e6---32829782837.pdf
    • http://gingerwooddesign.com/wp-content/plugins/formcraft/file-upload/server/content/files/160836dbf14dc3---noragiwidopuregavelu.pdf
    • http://ontheedgeofnow.com/wp-content/plugins/formcraft/file-upload/server/content/files/16072e3e75e14a---397500412.pdf
    • https://agrilaui.com/userfiles/file/65839081875.pdf
    • https://jdbailbonds.com/wp-content/plugins/super-forms/uploads/php/files/448124be7613f92eca535736b238b651/23557389186.pdf
    • https://beribuket.ru/wp-content/plugins/super-forms/uploads/php/files/6d04d4f5c7022d260790d07f7bf075e2/71632378884.pdf
    • https://agilitynd.com/wp-content/plugins/super-forms/uploads/php/files/ff318f28da3cf4ddff2d5b84ab374c12/mipusuwuzakapinutawev.pdf
    • https://sevsport.info/wp-content/plugins/super-forms/uploads/php/files/5a30bbf4d88fbac7e35e54df09801f32/87618242407.pdf
    • https://oknoplus-omsk.ru/wp-content/plugins/super-forms/uploads/php/files/181b0aad053bfd18871e1ef01adbd734/79019440803.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • https://feedproxy.google.com/~r/skout/mBVl/~3/BkSY9tpko7c/uplcv?utm_term=minority+scholarship+form+online+2019
    • https://bxthirteen.wpengine.com/wp-content/plugins/super-forms/uploads/php/files/e1d988585117b492f9831670dc84cb8e/sewajonab.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://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f247.bin
2eaca46fa2b39be96297d021d6eb2791a31a3da699aa75171e1bab88080b9607		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF247 5632 bytes
font_01_sfnt_off0001054e.bin
09139830fbe02a8000bba7d1af3f6b14b762e00fac1aa571a8118dbb66e664f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x1054E 10764 bytes
font_02_sfnt_off000129fd.bin
05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176		 pdf-font-stream PDF embedded font (sfnt) at offset 0x129FD 4324 bytes

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