Malicious PDF — malware analysis report

Static analysis result for SHA-256 3df1364a76bf98e6…

MALICIOUS

PDF

66.2 KB Created: 2021-03-23 00:33:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 52ebcad0a61a848d58b0d51aab516887 SHA-1: ba68b85525d76324603308e0bdab66ba79bc3684 SHA-256: 3df1364a76bf98e6aaeed6a228ba778a49561426014eefbe36c3411152e11770
96 Risk Score

Malware Insights

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

The PDF file was flagged as malicious by ML classifiers and ClamAV, indicating a high likelihood of malicious intent. It contains an embedded URI pointing to a suspicious domain, likely intended to host a phishing or malware payload. The document body, though heavily obfuscated, suggests a lure related to furniture whitewashing, which is a common tactic for phishing or scam operations.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9993

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://mezovuduw.ru/aws?utm_term=how+to+whitewash+metal+furniture
    • http://dujojiwasemob.mywebcommunity.org/3000_questions_about_me_book.pdf
    • https://cdn.sqhk.co/kajutizikodu/2FvgcMb/gudijofuto.pdf
    • http://derilezin.sportsontheweb.net/who_makes_tempstar_ac.pdf
    • https://cdn.sqhk.co/migixurej/NVPhj6L/16466418117.pdf
    • http://koparikamoze.scienceontheweb.net/wedojikoroxixijavogifopix.pdf
    • http://gasorutika.iblogger.org/alrededor_del_mundo_en_80_dias.pdf
    • http://japarof.mywebcommunity.org/autocad_drawing_to_converter_free_download_full_version.pdf
    • http://riwuvodobopexu.mywebcommunity.org/wikilukavitufakow.pdf
    • http://luxuwum.mypressonline.com/mike_byster.pdf
    • http://nazevulilabume.66ghz.com/wejitazipesebozobedezod.pdf
    • http://digovin.getenjoyment.net/fakonufimemazasurebifof.pdf
    • http://rofibopuxi.iblogger.org/emitter_coupled_astable_multivibrator.pdf
    • http://xijonofupawulo.mypressonline.com/kaposokijafowororamuvux.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/tuzakifezara/aoe_1_ban_chuan.pdf
    • https://s3.amazonaws.com/wegemebufojafak/20637357037.pdf
    • https://s3.amazonaws.com/pibajuwi/mopese.pdf
    • https://s3.amazonaws.com/megelugik/bipuvapodepoxosijamez.pdf
    • https://s3.amazonaws.com/zopenave/best_pmp_study_guide.pdf
    • https://s3.amazonaws.com/widiku/difetonusogawunuz.pdf
    • https://s3.amazonaws.com/zikeko/dogawafijereresunovetax.pdf
    • http://jabodegodonirad.atwebpages.com/zurigefazawoxe.pdf
    • https://s3.amazonaws.com/nuxomigo/breve_resumen_del_libro_romeo_y_julieta.pdf
    • http://bototiluwoge.atwebpages.com/34847662180.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_off0000c86d.bin
cf983f42e2264e8b346b38b5d0497269a5881168d10862ab806f1c0b54557e4e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xC86D 5060 bytes
font_01_sfnt_off0000d988.bin
5827f5eae6883b89e2837e7f8858c0bdbd32bd5841871d6cd0920217e4727b5f		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD988 9840 bytes

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