Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d2b0ab9ad7705d6…

MALICIOUS

PDF

89.3 KB Created: 2021-03-10 01:13:21 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ad137625e34b02203fe0f3af91e32f61 SHA-1: a79b391e7c6340dd9890c6dee41743a57cdc8226 SHA-256: 0d2b0ab9ad7705d69c1295a5b384539345ba7cf7e02d0e7d6f7bd45b2b84ae60
196 Risk Score

Malware Insights

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

This PDF file exhibits characteristics of an advance-fee scam, presenting itself as a free download for 'The wine bible pdf free download'. It contains a large number of external links, many pointing to other PDF files, suggesting a link farm or redirection mechanism. The ClamAV detection and ML classifier strongly indicate malicious intent, likely to deliver a phishing or trojan payload.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

Heuristics 6

  • 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.
  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Advance-fee lottery/parcel scam lure high SE_ADVANCE_FEE_SCAM_LURE
    Document contains lottery/beneficiary or prize language together with large-value draft/funds wording and parcel/courier delivery requirements. This is a classic advance-fee fraud document shape.
  • 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://fokemale.ru/aws?utm_term=the+wine+bible+pdf+free+download
    • https://static.s123-cdn-static.com/uploads/4369332/normal_5fcbef1818636.pdf
    • https://static.s123-cdn-static.com/uploads/4404308/normal_5ffb229aa753f.pdf
    • http://zimipamus.22web.org/67530578312.pdf
    • https://cdn-cms.f-static.net/uploads/4446500/normal_60360ace247f8.pdf
    • https://vilabusifa.weebly.com/uploads/1/3/0/7/130776169/wikar_zokixu.pdf
    • https://puvawimorewafiz.weebly.com/uploads/1/3/5/3/135383948/7496977.pdf
    • https://static.s123-cdn-static.com/uploads/4461207/normal_60019efc03ae4.pdf
    • https://cdn-cms.f-static.net/uploads/4447253/normal_5fd3705d96a41.pdf
    • https://static.s123-cdn-static.com/uploads/4402252/normal_5fdf013d7b3ff.pdf
    • https://cdn-cms.f-static.net/uploads/4475864/normal_5fe832f4c9ac9.pdf
    • https://pedasivu.weebly.com/uploads/1/3/5/3/135387907/vulixixikoturisaz.pdf
    • http://salejozokaboruz.22web.org/36493624090.pdf
    • https://jonomivebotuw.weebly.com/uploads/1/3/4/6/134683751/9230805.pdf
    • https://widuboxizivibib.weebly.com/uploads/1/3/4/3/134315701/47f1e0d07f7e12b.pdf
    • https://cdn-cms.f-static.net/uploads/4384644/normal_602ca692df7b8.pdf
    • https://static.s123-cdn-static.com/uploads/4416331/normal_5fca461aa8df8.pdf
    • https://cdn-cms.f-static.net/uploads/4403557/normal_600ef93b0f702.pdf
    • https://static.s123-cdn-static.com/uploads/4475582/normal_5ff0d57b15558.pdf
    • https://cdn-cms.f-static.net/uploads/4456116/normal_5fdc1181d0bb7.pdf
    • https://cdn-cms.f-static.net/uploads/4403407/normal_600c4913a3868.pdf
    • https://cdn-cms.f-static.net/uploads/4467955/normal_5fd38c159f845.pdf
    • https://static.s123-cdn-static.com/uploads/4446494/normal_5fc71cbe28bac.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://tefotesibeto.epizy.com/rurudobi.pdf
    • http://xufizup.rf.gd/76044827718.pdf
    • http://fituxulilofe.epizy.com/alphabet_letters_design_images_free.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00011f64.bin
b1919a3491444bd8671acc049f005a36bbfef6b32bae1af015c36c78bb399103		 pdf-font-stream PDF embedded font (sfnt) at offset 0x11F64 5132 bytes
font_01_sfnt_off000130df.bin
886a0d27845ec668e4cba659548f4980510d56c6d6a413f1e32790106052ed07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x130DF 11584 bytes

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