Malicious PDF — malware analysis report

Static analysis result for SHA-256 aee46f15c38c583d…

MALICIOUS

PDF

72.4 KB Created: 2021-03-02 22:55:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-11-20
MD5: 3d6f925c8311351e92b100b4a2744602 SHA-1: 4c22783e603a7ec6aa57a9377d28c57983a1c69f SHA-256: aee46f15c38c583ddb5508d848347a467b8f3223045d27e55c2f3933d8d81f22
164 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

The PDF file contains numerous external links, a common tactic for link farms and phishing sites, with one prominent URL leading to a site offering movie downloads. ClamAV detected this file as 'Pdf.Phishing.Trojan', and ML classification strongly indicated maliciousness. The presence of a download button lure further supports the phishing and malicious download intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://pelibifir.ru/strik?utm_term=the+game+plan+full+movie+download+in+hindi PDF link annotation
    • https://subijiderekura.weebly.com/uploads/1/3/4/6/134616270/fukegiwulopun-pomojiwu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4446270/normal_60086aee1d1b9.pdfIn PDF document text
    • https://datotizit.weebly.com/uploads/1/3/4/6/134696706/6616222.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496812/normal_603cb9a36b94b.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4381289/normal_5ff59362240e4.pdfIn PDF document text
    • https://xixilizuxuwogag.weebly.com/uploads/1/3/4/8/134879277/2adf91410328.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4462726/normal_5fdff5208c5c7.pdfIn PDF document text
    • https://cdn.sqhk.co/gidenateg/YgcN5id/dwayne_haskins_trade_destination.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4392191/normal_5ff91965787cf.pdfIn PDF document text
    • https://banafazag.weebly.com/uploads/1/3/4/3/134325205/1983154.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/xixonu/giving_directions_worksheet_british_council.pdfIn PDF document text
    • https://s3.amazonaws.com/mexesazaxasa/sabapagunokizejukazaju.pdfIn PDF document text
    • https://s3.amazonaws.com/jedadokuti/33191139434.pdfIn PDF document text
    • https://s3.amazonaws.com/bibejovixapis/sabiloxavusugezuvuxomar.pdfIn PDF document text
    • http://tafaredos.rf.gd/risk_matrix_score_template.pdfIn PDF document text
    • https://s3.amazonaws.com/gazitif/71832574533.pdfIn PDF document text
    • https://s3.amazonaws.com/potofaw/hiperaldosteronismo_primario_medigraphic.pdfIn PDF document text
    • https://s3.amazonaws.com/debiwelof/embolism_pulmonary_guidelines_2019.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_off0000df42.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF42 5284 bytes
SHA-256: 014a7e2cc8491418874e4199d51d81753b533788c0a81021b6d3b27c92ec2d62
font_01_sfnt_off0000f132.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF132 10312 bytes
SHA-256: 78e326ab6c6af9d79f5964a57b92227bba8ba5470577da9479935d9065ff51b7

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