Malicious PDF — malware analysis report

Static analysis result for SHA-256 bec9287395d63c83…

MALICIOUS

PDF

77.6 KB Created: 2020-12-10 05:47:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 60946253b9cee0bdc0df58622f792296 SHA-1: 1db33c68ed30b7b27f85454464157a920702dec3 SHA-256: bec9287395d63c837e2b20f4a8c310e9409f30fa348b90a8300b4b77339c2c82
96 Risk Score

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 0.9998

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 https://trafffi.ru/aws?utm_term=arena+pc+games+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4494866/normal_5fbb27e6ee17b.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417046/normal_5fbe9266b6919.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/339ef4e4-e382-4502-bee3-90894a45865f/12337967636.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0ac51ed4-b845-4aa0-b532-c6d76db9edfb/zugumujalitotudosurinob.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4fd14969-9b72-4f63-a151-cae72d389c4b/40922545022.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2e3666a-ee5c-43c9-a6b6-17d5b0d004da/11629452789.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/db30c811-9c1e-45f9-9e5e-5a1d1882f03a/espn_kick_return_game.pdfIn PDF document text
    • https://s3.amazonaws.com/gadumagabusodel/ecuador_language_translator.pdfIn PDF document text
    • https://s3.amazonaws.com/ladiwuzetawedi/55124405254.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c7762d7c-cb85-4f9d-9da2-1730d61eabf8/lomize.pdfIn PDF document text
    • https://static1.squarespace.com/static/5fc0d12c3dfdd95b60d4a66f/t/5fc0eef7145a8629dcd2c600/1606479607612/supazopunigulujofadabim.pdfIn PDF document text
    • https://s3.amazonaws.com/genedonapubefe/facebook_ads_guide_dropshipping.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

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000f388.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF388 5292 bytes
SHA-256: 68f95ae2593c0b26de6b145d5a24dc3a93b2f9be4a3a00e9db42512b8d75bfaf
font_01_sfnt_off00010575.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10575 10608 bytes
SHA-256: 64fcc37d287bd75480bb6d32fe4013573f0d998fb95802340255993643332b9d