PDF malware analysis — malicious · db527ca0026eb6de

MALICIOUS

PDF

82.1 KB Created: 2021-03-02 12:39:25 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)

MD5: 4cdc981359655b89356a0086a07332d8 SHA-1: 5a5423862852a06fff2c550ecd66c5a67ac477df SHA-256: db527ca0026eb6deb6a7182afb0fe6804be73d37506838ff86d96e35851abd3a

96 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

The file is a PDF document that contains an embedded URL, identified as a phishing lure. The ClamAV detection and ML classifier strongly indicate malicious intent. The presence of an external URI points to a likely phishing or malware distribution attempt, masquerading as a review to entice clicks.

Machine Learning

Nyx PDF Classifier malicious score 0.9998

Heuristics 4

ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
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://vilenefex.ru/123?utm_term=a+suitable+boy+netflix+review
- http://8gusevshop.website/328394376419ue0x.pdf
- http://shopee24.site/meade_etx-70at_price2giol.pdf
- https://cdn.sqhk.co/gobavata/hfsBghN/happy_birthday_cake_images_manu.pdf
- https://cdn-cms.f-static.net/uploads/4416139/normal_5fd0f1a34b310.pdf
- https://cdn-cms.f-static.net/uploads/4449014/normal_5fe9fed7bfcdb.pdf
- https://static.s123-cdn-static.com/uploads/4407102/normal_5ff11897d7006.pdf
- http://yozi.store/lajovuzuti1q3mo.pdf
- https://static.s123-cdn-static.com/uploads/4495837/normal_600624933d69e.pdf
- https://cdn.sqhk.co/dawadetugas/cjbjgXl/autocad_3d_pipe_drawing.pdf
- http://adyga.site/12526487756ciein.pdf
- http://www.ascendercorp.com/
- http://www.ascendercorp.com/typedesigners.html
- http://www.daltonmaag.com/
- https://s3.amazonaws.com/jedadokuti/bancomer_movil_apk_2019.pdf
- https://s3.amazonaws.com/nolarifaforuxop/kimmeridge_bay_surf_guide.pdf
- https://s3.amazonaws.com/nuxulikiwab/323835430.pdf
- https://s3.amazonaws.com/tapelu/interesting_facts_about_the_bible.pdf
- https://s3.amazonaws.com/fajixe/rails_6_webpacker_stylesheets.pdf
- https://s3.amazonaws.com/vukumesoj/3132316706.pdf
- https://s3.amazonaws.com/padosumifubobo/xajubezabamoturewubixinum.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.

Filename	Kind	Source	Size
`font_00_sfnt_off0000f7dd.bin` `455e2aad92aa1b978a518c34c07f3928a5751c80001f623b008261638b4d0811`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF7DD	5092 bytes
`font_01_sfnt_off0001094d.bin` `38bf3bb8a4434aa95ceb4ff39bc0429c4467c78a62d7836cba7112399f7a31bd`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x1094D	10484 bytes
`font_02_sfnt_off00012d08.bin` `0d0f64e27578eb124b8bc81c7eceacdd166e22eddd95c81328e9fbd7de2a6333`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x12D08	4324 bytes

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