Malicious PDF — malware analysis report

Static analysis result for SHA-256 f34f3fa836ea5f8b…

MALICIOUS

PDF

77.3 KB Created: 2021-01-03 01:41:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b40ac8b1ec2235d9121f8938f4dd33f3 SHA-1: d329773ef611e36cadf0a4ac7b3869915554cfa9 SHA-256: f34f3fa836ea5f8b145c451e9ca2e3f669134fbca9db2abd0fb60baf7a65be52
96 Risk Score

Malware Insights

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

The PDF file contains an embedded URL that directs users to a suspicious domain, masquerading as a search result. This URL is likely intended to host a phishing page or download further malicious content. The ML classifier and ClamAV detection strongly indicate malicious intent, consistent with a phishing or trojan delivery mechanism.

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://trafffe.ru/123?utm_term=light+and+sound+type+pokemon
    • https://static.s123-cdn-static.com/uploads/4376600/normal_5fe2cc28c718d.pdf
    • https://cdn-cms.f-static.net/uploads/4386618/normal_5fbe0ec8ad748.pdf
    • https://cdn.sqhk.co/xufatirumina/jhgifb7/86942576691.pdf
    • https://cdn.sqhk.co/vonixilavot/dVPoKjh/rise_up_hamilton_remix.pdf
    • https://zukamukenipebo.weebly.com/uploads/1/3/1/3/131380388/gigepolusaxedofepiso.pdf
    • https://cdn-cms.f-static.net/uploads/4485309/normal_5fb7c39334e06.pdf
    • https://guwomenod.weebly.com/uploads/1/3/0/8/130873843/domovodibaposix.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/debiwelof/14773169397.pdf
    • https://uploads.strikinglycdn.com/files/9df8f75e-f544-4d41-90bf-7d7dfaab5bc6/easy_movie_quiz_questions_2020.pdf
    • https://s3.amazonaws.com/sibenuvokiwuz/34263196463.pdf
    • https://s3.amazonaws.com/nefomojuwet/96263611256.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/
    • http://scripts.sil.org/OFL

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000e762.bin
cb1710376f8bd7bfc5e48332295ee81fe6b64d0562f5d38de4436fc70df1e467		 pdf-font-stream PDF embedded font (sfnt) at offset 0xE762 2900 bytes
font_01_sfnt_off0000f1a0.bin
a5bbb11ecdf6fb6b6cf52991b8eb70c97f4c5143205070f9346ec46a7544c5b6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xF1A0 5352 bytes
font_02_sfnt_off000103c4.bin
ddfd30e9d87d558bfedb0e9dbfeca543a830731cc5aa6aea4feb2dfe09923037		 pdf-font-stream PDF embedded font (sfnt) at offset 0x103C4 10808 bytes

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