Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b6d53578968190f…

MALICIOUS

PDF

67.2 KB Created: 2020-11-24 13:37:49 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 876ccbf9a84877904a2d8245c62ed6c2 SHA-1: 41c49d8934b902d93fd3cf487e35332e82d0e5db SHA-256: 4b6d53578968190f13d823b306ff5a52bdadb8a7b3f7c9eaf68f97682ac123bf
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ClamAV and an ML classifier. It contains an embedded URI pointing to 'trafftec.ru', which is likely a phishing or malware distribution site. The document body, though heavily obfuscated, contains text related to 'Sonic adventure dx pc download free', suggesting a lure for users seeking free game downloads. No scripts were extracted, but the presence of an external URI in a malicious PDF is a strong indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 4

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://trafftec.ru/strik?utm_term=sonic+adventure+dx+pc+download+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4393893/normal_5f906ac214476.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375070/normal_5f8c07e484e7a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4486215/normal_5fb2bd970f4d6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4467593/normal_5fbce4bb4b8f1.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/1092f3a8-e7ad-469e-8442-48b6169418d8/astm_d698_free_download.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/77afb83a-6a36-4d66-89f7-e38a5ffafef9/26624439379.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf7970c6-31b4-47b3-a70d-7d2617c183b6/jafavavuwepozope.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6039b1de-fb28-435c-983e-892365447b64/28831473656.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d38ce393-590c-4bc1-b174-b4e9e62a6b3c/barnett_wildcat_c5_camo_crossbow.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/9dc00503-05fb-4dfe-9551-a5e497a57fcd/40997655417.pdfIn PDF document text
    • https://s3.amazonaws.com/dabatisew/91137234153.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/7e2e21a3-b36d-4c62-9916-7ff7089fca25/kaxav.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/18d8d654-93a0-4511-aa3d-e823dc17f9c5/35117981492.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c574a90b-6a2f-4b9b-a681-1256c365c65a/star_wars_revenge_of_the_sith_full_m.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_off0000cac8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCAC8 5296 bytes
SHA-256: b063fc440832ffa897f4b4b0f29a56d020479dba966864a51d95ecf7ab7222cf
font_01_sfnt_off0000dcfc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCFC 10348 bytes
SHA-256: 5d86b95f517e7b5166b388abd98b4f7636319c2ce101834ed34be17d10f2421e

Open this report in the interactive analyzer, or submit your own file for analysis.