Malicious PDF — malware analysis report

Static analysis result for SHA-256 bad6d2aaf362e38a…

MALICIOUS

PDF

71.9 KB Created: 2020-11-19 09:22:57 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-10-26
MD5: a82c3919a31dfa5ba0fff054f8d62768 SHA-1: 15bddca0e8f5538528a489c4420970b27082dcab SHA-256: bad6d2aaf362e38a3433d35e32ea02971e739cc6cb33efbebaaba820f5d5d8b0
156 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to PDF files hosted on various platforms. The primary URL, "https://trafffe.ru/strik?utm_term=cheap+flights+to+zurich+from+san+fra", suggests a phishing or scam attempt disguised as a search result. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to phishing or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://trafffe.ru/strik?utm_term=cheap+flights+to+zurich+from+san+fra PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4370303/normal_5f90a48b83ed6.pdfIn PDF document text
    • https://jewajufigojoxi.weebly.com/uploads/1/3/1/4/131438211/favokepep.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4379616/normal_5fa84b2e5760e.pdfIn PDF document text
    • https://wutawodasigupo.weebly.com/uploads/1/3/4/5/134512212/8306168.pdfIn PDF document text
    • https://vigoxanumevu.weebly.com/uploads/1/3/4/4/134466257/lawopezisefirus.pdfIn PDF document text
    • https://nivawapononagi.weebly.com/uploads/1/3/4/2/134234681/pogaguzatufe.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4367644/normal_5f901d5a0b955.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4366007/normal_5f946affefd86.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://uploads.strikinglycdn.com/files/cbf5c99a-e757-46b0-aee6-412d5d294d4e/zip_code_for_east_prairie_missouri.pdfIn PDF document text
    • https://s3.amazonaws.com/fosagobomap/konukulazuzolujomatusedot.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/0a85c4ae-f271-4226-9030-9bfc687ae847/zapoxofodofidatanab.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_off0000ccff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCCFF 5384 bytes
SHA-256: 3c925daf81f0143891135694390c90aaf8d42cb192fb4f27911829c735885293
font_01_sfnt_off0000df3c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF3C 11104 bytes
SHA-256: db089a2395a0cf790aa40ba306dcf22db3f72a4264a0447e3b2a043b5d4fe155
font_02_sfnt_off000104f9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x104F9 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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