Malicious PDF — malware analysis report

Static analysis result for SHA-256 9550408e6de66cc7…

MALICIOUS

PDF

80.7 KB Created: 2020-11-29 17:16:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 565fce17d22db4ad2f597803b9c57378 SHA-1: 1245c5149db1e6f2a31aaf616ecf6fbcfacfed17 SHA-256: 9550408e6de66cc7523dae68af39c291cdee9962d2414843db031152f82a04a9
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 0.9993

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://traffine.ru/123?utm_term=casio+tough+solar+illuminator PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4465269/normal_5fb6e68159cde.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4372702/normal_5fa1615b48270.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381536/normal_5fbf0dbba8557.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4421360/normal_5faa68c054202.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374699/normal_5fb3eb1dba47a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369149/normal_5f94e85dea585.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4365620/normal_5fc336ea9bdd4.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/2c226055-0f17-435d-939f-d02850f51d89/polarity_test_of_3_phase_induction_motor.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/peaceful_pill_handbook_korean_method.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9e177b1d-3e4b-471b-907a-4d530c0f5a31/mebozadijuvinafizovek.pdfIn PDF document text
    • https://s3.amazonaws.com/wajufifenoxuj/latex_code_for_seminar_report.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7be92f8c-68c4-44a6-a8cb-dd17d81f83ae/76398605874.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
    • https://savannah.gnu.org/projects/freefont/In PDF document text
    • http://www.gnu.org/licenses/In PDF document text
    • http://www.gnu.org/copyleft/gpl.htmlIn 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

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 5

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd97.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD97 6744 bytes
SHA-256: 127b44c9f93874c96d25eb7ddc4688780d8877ce931cf296363fb5748d8d514b
font_01_sfnt_off0000de4d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDE4D 2868 bytes
SHA-256: cfdf59a0cc40cda50b922138463ecaa12fc447e9f282d0131606ef10d6057929
font_02_sfnt_off0000e880.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE880 5004 bytes
SHA-256: c25a9b9c039214fa0564b4b6322b2e030e8b8ab543612880039b91b7b0e855a5
font_03_sfnt_off0000f958.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF958 10932 bytes
SHA-256: 86054a70c4e04f791067a9dfa5dab229a1ace9e234e0c39b43c43dd1ff8b0797
font_04_sfnt_off00011edd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11EDD 16336 bytes
SHA-256: 8c8dfad9827ef228c0c22010aed6ee0990117ff7e865997a06a869668210a18b

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