Malicious PDF — malware analysis report

Static analysis result for SHA-256 c15f1545aee64834…

MALICIOUS

PDF

80.7 KB Created: 2021-03-02 09:52:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: 5b9d66bbc796c7d9ff8c8b1f40006dfd SHA-1: 7f3e11b71e0c1af18c1b164e9485bb9e996bc851 SHA-256: c15f1545aee648347bdd831dd257b5fd0cf9a7c87e158b2c21daa4cb463ad34f
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 site offering to stream a popular fight event. This is a common lure for phishing or malware distribution. The ML classifier and ClamAV detection strongly indicate malicious intent, likely related to a trojan or phishing campaign.

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://zajinet.ru/wix?keyword=watch+mayweather+vs+mcgregor+full+fight+online+free PDF link annotation
    • https://cdn.sqhk.co/lijipatalenu/iecBJhf/milekolerepumubiwuvosoni.pdfIn PDF document text
    • https://maludanojuwido.weebly.com/uploads/1/3/4/5/134591959/9e64d176eaa9.pdfIn PDF document text
    • http://goshop32.site/logical_reasoning_books_for_upsc35ena.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4449788/normal_5fefb4eec7a68.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4367937/normal_6005ad9e80d6e.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4488316/normal_6011b892a303c.pdfIn PDF document text
    • https://fakebomazeb.weebly.com/uploads/1/3/1/4/131453402/ddc02f339.pdfIn PDF document text
    • http://serviceforyou.site/medenitero1r7c.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4393369/normal_5ffddfb2c07c2.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417988/normal_60304602166ca.pdfIn PDF document text
    • https://kigijizinelojuk.weebly.com/uploads/1/3/4/8/134848952/33547d11244.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4418188/normal_6030294ce7500.pdfIn PDF document text
    • http://boost-store.net/lipatofedanadozupuv6no6m.pdfIn PDF document text
    • https://pofifeluvoka.weebly.com/uploads/1/3/0/7/130739131/6f503068a3d.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4413713/normal_601570d7c19d4.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4412757/normal_5fca7bc10d544.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/mejigavukolu/51315103717.pdfIn PDF document text
    • https://s3.amazonaws.com/sumesawoxajew/nyc_port_authority_gate_information.pdfIn PDF document text
    • https://s3.amazonaws.com/bupesejirijejus/troy_bilt_bronco_riding_mower_mulching_kit.pdfIn PDF document text
    • https://s3.amazonaws.com/tulosa/93568808508.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_off0000fd79.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFD79 5564 bytes
SHA-256: bc4cb3ee5c1b70b16b23f30430c5b783755ad29ca129e320d1d8b7bc7c53f218
font_01_sfnt_off00011063.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11063 10644 bytes
SHA-256: deb65dc203b58d12911b7ee34ffbd9e971c810800cea5ec1d5197ff2f203402b

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