Malicious PDF — malware analysis report

Static analysis result for SHA-256 08976a9b41195449…

MALICIOUS

PDF

83.8 KB Created: 2021-04-13 14:09:06 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 857d3c8b27d67072852b0eebd65336c2 SHA-1: 5845147f21e884280976b766c7880067805e64c0 SHA-256: 08976a9b4119544908ab9b44786eb8ae24d2f9e42fe5abbd3bf223129dd5c331
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://xajibur.ru/strik?utm_term=how+to+use+a+negative+scale+factor+to+coordinates PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4412593/normal_5ffd35ea3f2f9.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4475738/normal_5ffc805f5414c.pdfIn PDF document text
    • http://sofidujewa.22web.org/o_guarani_carlos_gomes.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4503309/normal_600d61d677bcb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/tufitijinexu/71801177493.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7496678e-ec03-443e-a30b-19d00f276d15/lirozogemawetojojesov.pdfIn PDF document text
    • https://s3.amazonaws.com/tiduro/vodavobofonufozujolud.pdfIn PDF document text
    • https://s3.amazonaws.com/vipuxafol/how_much_oil_does_a_2003_jeep_liberty_take.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/dc50525e-4445-41a5-91ac-65061f95af45/primal_carnage_download_free_full_pc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/a3f002a4-5ad6-49a1-b1c6-ddbf1772b16d/fusidolixezun.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0c44daeb-da19-4beb-b854-46a78c7ffa9e/92913523341.pdfIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/96856910434.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2f86308f-d32f-4258-b641-2b2455bc8e03/89478410422.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4bfbe17b-7b3e-4721-9d0d-a98541a01b52/fedidoju.pdfIn PDF document text
    • http://sefudupufojuxo.rf.gd/98509495737.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/8e593e3d-44f5-4273-874b-df10e71f5bd1/how_the_grinch_stole_christmas_movie_synopsis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/50c47cde-60e4-4713-9900-8381e18a893f/38627075773.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/64fd11bc-5583-492d-b2d9-e84f46779886/miwukikolo.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/172f9576-7b8e-4b66-96a0-d6d161c46e8a/monuboponezelezelew.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text
    • http://dejavu.sourceforge.netIn PDF document text
    • http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e64c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE64C 5184 bytes
SHA-256: d7f126e371d8e3bdf671523bf3a4f5a8382281e5615ede1cb813716ed2ae00f6
font_01_sfnt_off0000f810.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF810 11152 bytes
SHA-256: 7454efe9ece2035d1e4958b86b3fe6d6395153441db5c6516128421ede40061a
font_02_sfnt_off00011e66.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11E66 16148 bytes
SHA-256: 49436f94d5abf10ca6af8af9848174aab82dfe7bc58a5146411d238fd5c76648
font_03_sfnt_off0001335c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1335C 4324 bytes
SHA-256: d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378

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