Malicious PDF — malware analysis report

Static analysis result for SHA-256 6d60ff059cbaca0a…

MALICIOUS

PDF

63.8 KB Created: 2021-01-08 17:10:36 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-16
MD5: ab1cca245f6b9708d9969fcab0c06573 SHA-1: bd2746c3494f0a660fe2d0617b83051859135d32 SHA-256: 6d60ff059cbaca0a997225b20e4992bc8d8426b418b2b05745bf7a279dd98a1a
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 URL, 'https://traffset.ru/aws?utm_term=treasurer%2527+s+report+for+church+agm', which is likely used to deliver the malicious content or redirect the user. The document body, though heavily obfuscated, suggests a lure related to a 'treasurer's report for church agm'. No scripts were extracted, but the presence of embedded URLs and the nature of the detection suggest a phishing attempt.

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://traffset.ru/aws?utm_term=treasurer%2527+s+report+for+church+agm PDF link annotation
    • https://cdn.sqhk.co/vamunidibu/DOujhig/widaranofejox.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448733/normal_5ff4371880259.pdfIn PDF document text
    • https://cdn.sqhk.co/remowiwa/ehghehe/dubai_creek_tower_construction.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/0QgeeEb/kikejavimivonuwoxud.pdfIn PDF document text
    • https://cdn.sqhk.co/mepowokugo/5csjvL9/xujususotujofa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4374533/normal_5fe454e8a52d4.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417325/normal_5fdb341477df0.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449600/normal_5fe10405739d0.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/89b79623-bdda-43d6-aad8-f6ddbb246984/91777566663.pdfIn PDF document text
    • https://s3.amazonaws.com/jakujakula/94703238487.pdfIn PDF document text
    • https://s3.amazonaws.com/liguwubore/graphing_absolute_value_functions_worksheet_doc.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/fb45dbb4-ab1e-471a-9be0-36f31c47d2ad/kijuvirun.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_off0000bf5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xBF5F 5380 bytes
SHA-256: ac0dcf4694e5d1349747564ec1f86e6130e028f07d04c5fac62e1f3759e74c8e
font_01_sfnt_off0000d18a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD18A 9724 bytes
SHA-256: 767a10e01322bde966386fc7ba2bf3ad7e07c1f2a806ea20b6f5ce23c23b1640