Malicious PDF — malware analysis report

Static analysis result for SHA-256 41d0b6044012c423…

MALICIOUS

PDF

65.9 KB Created: 2020-12-21 18:41:41 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-05
MD5: f479b2930bc2a90752fbb48107ae0521 SHA-1: eafe2f4c93b5ca5526e3fc02f27c1aee8f86d6b1 SHA-256: 41d0b6044012c4232e1f42962cf98d63e52c33319c3b0c75419885c923e4c82d
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

The PDF file was detected as malicious by ML classifiers and ClamAV, specifically flagged as a phishing trojan. It contains an embedded URL that directs to a suspicious domain, likely part of a phishing or malware distribution scheme. The document body, though heavily obfuscated, suggests a lure related to a 'B612 beauty filter camera app'. No scripts were extracted, but the presence of external URIs and the overall detection profile strongly indicate a phishing or malware delivery 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://trafffi.ru/strik?utm_term=b612+beauty+filter+camera+app PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4378852/normal_5fdecd5bd3ade.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4419818/normal_5fc5a6b9594b7.pdfIn PDF document text
    • https://degugelusejife.weebly.com/uploads/1/3/2/6/132695568/9fc095c36341.pdfIn PDF document text
    • https://finijuzado.weebly.com/uploads/1/3/4/4/134444754/fapivabajek_wusom.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4411714/normal_5fa4fdbce88d1.pdfIn PDF document text
    • https://terowibew.weebly.com/uploads/1/3/4/3/134370771/8184963.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4444386/normal_5fdc24e730f44.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4443819/normal_5f9f024e429ee.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4402717/normal_5fc9b11e9ee98.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4484118/normal_5fa892b3e6369.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369324/normal_5f93ee9389e2f.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/073798c3-9074-4d36-a60d-c751a8e3f39d/wijuvaxi.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/27b8bc1e-920a-4340-8a3b-8aa5e4440cdf/bevugiberidudujakarem.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000b936.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xB936 5612 bytes
SHA-256: dcfac23bf54931d76544cf02f7b15b102ecda9b05586e9637678c95e20c38cb8
font_01_sfnt_off0000cc47.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCC47 4284 bytes
SHA-256: 02497f37ed9f4befa05f86c8645b4ca62e3d724294ebad11b8ef8e8b6ceb5ebe
font_02_sfnt_off0000d7cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD7CD 10148 bytes
SHA-256: 2c50ea555e585f4363a39190cfb365a8c05e43d019ea46f96ad359cd88fdd29c

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