Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c478570e5b00721…

MALICIOUS

PDF

71.8 KB Created: 2020-11-10 01:19:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-03
MD5: a04caf41e40204556a3278ffb0940212 SHA-1: b90c6c1c5aa5ed25a442085c42d554994a9cc591 SHA-256: 6c478570e5b007213f9b8a5d15331ea39942e55074055e14926298d308ce6f3e
96 Risk Score

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, indicating a phishing or trojan payload. It contains an embedded URI pointing to 'trafffi.ru', which is likely part of a phishing lure. The document body, though heavily obfuscated, appears to be a malformed attempt to mimic search results for popular media, suggesting a social engineering tactic to entice users to click the malicious link.

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://trafffi.ru/strik?keyword=naruto+amv+juice+wrld+sad PDF link annotation
    • https://temazojirilezin.weebly.com/uploads/1/3/2/3/132302863/ligigusu.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416513/normal_5f9b497b099db.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417123/normal_5fa59f5e98717.pdfIn PDF document text
    • https://dolilifiwu.weebly.com/uploads/1/3/4/4/134401054/tuforadovujalodilaxe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4389794/normal_5fa362a2d47cd.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4416319/normal_5fa8884f37121.pdfIn PDF document text
    • https://zipemulobob.weebly.com/uploads/1/3/4/5/134528333/4020720.pdfIn PDF document text
    • https://fujimerikav.weebly.com/uploads/1/3/4/3/134307110/jitajezexafom-zamoweridezat-lewovaforubab-xaguzakafifido.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/wibedubosateg/rurepe.pdfIn PDF document text
    • https://s3.amazonaws.com/widuxade/lokuraxawev.pdfIn PDF document text
    • https://s3.amazonaws.com/ganubatebedoxez/lake_lynn_raleigh_nc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d6025244-808e-4e82-b152-4e4ed0d18c0c/90471256735.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_off0000b9e2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB9E2 5060 bytes
SHA-256: 46916f0f0a9d1a52aeb64e9d29ee843c1237577ad6b5da06997d6011bfa23892
font_01_sfnt_off0000cb2f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCB2F 9896 bytes
SHA-256: f34db425b86b8cd9a1b5b47633c53d3bde3da513107bfdad297043fa26c0b644
font_02_sfnt_off0000ed59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED59 16132 bytes
SHA-256: ca0bb856d51d4c440eb4e48db524e4b4a87bf80294704eab3ae97752e74326e1
font_03_sfnt_off0001024b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1024B 4324 bytes
SHA-256: 1158d95dac44631f497756703988ba3645251422e7ff0015d3fca430225e7c3e

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