Malicious PDF — malware analysis report

Static analysis result for SHA-256 51a7f94edf632b13…

MALICIOUS

PDF

79.3 KB Created: 2021-03-10 09:18:13 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 51c6f7b1443515038e3c8590c8780965 SHA-1: 2ef2c430827d419fe091867a2f167e861093eb1e SHA-256: 51a7f94edf632b13d5d08259ac38f8df40f38673858a77ecd1b802748cfc3f29
96 Risk Score

Malware Insights

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

The PDF contains an embedded URI that points to a malicious domain, likely intended to deliver a secondary payload or redirect the user to a phishing site. The ML classifier and ClamAV detection strongly indicate malicious intent. Although no scripts were explicitly extracted, the PDF structure and embedded URI suggest it's designed to exploit vulnerabilities or trick users into visiting a harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://druttle.ru/wix?keyword=aroma+rice+cooker+manual+3+cup
    • https://cdn.sqhk.co/rokabumake/jaI2iiP/givawixaruzelezulalexare.pdf
    • http://ledy66.net/pabamigokagipegenam2moxr.pdf
    • https://kepijifawobi.weebly.com/uploads/1/3/5/3/135388201/vixiverukene.pdf
    • http://support-copyrighthelpservice-about.com/8991547729711fgg.pdf
    • https://lamuwopinu.weebly.com/uploads/1/3/4/6/134632291/muxepe_xajuwuwe_pupixe_jivubisab.pdf
    • https://keruzexutebimoz.weebly.com/uploads/1/3/4/3/134310977/totupoxomijijaz.pdf
    • https://cdn.sqhk.co/tixukiko/gj7icjd/royal_family_dance_crew_members_instagram.pdf
    • https://dedelazixuni.weebly.com/uploads/1/3/4/5/134596723/204f49.pdf
    • https://cdn.sqhk.co/kavuzoda/hjgjahh/illuminated_3d_paper_cut_out_art.pdf
    • https://cdn.sqhk.co/fetadupozo/iaKgeLQ/pufap.pdf
    • http://iminn.ru/hp_laserjet_pro_400_mfp_m425dwam0tr.pdf
    • https://cdn.sqhk.co/ragejeli/ega8Mh0/1942_mobile_mod_apk.pdf
    • http://podarokinsta24.online/pharmacology_textbookrsank.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • http://www.daltonmaag.com/
    • http://jevigoxiferoka.epizy.com/rewalorodojuxed.pdf
    • https://uploads.strikinglycdn.com/files/a21da074-0f9d-4ed5-a061-0c70cf2bb21f/tapit.pdf
    • https://uploads.strikinglycdn.com/files/09af5725-096e-4598-add3-13d74b52d4a5/legadotamosiwik.pdf
    • https://uploads.strikinglycdn.com/files/0d5835ae-4ac5-4b0e-b7b5-aa603b3612db/gazilulojimelopaposowab.pdf
    • https://uploads.strikinglycdn.com/files/0338812e-fbaf-4081-a146-0b1679995891/boy_scouts_uk_near_me_florida.pdf
    • https://uploads.strikinglycdn.com/files/56f826bc-d4b7-4804-86af-d6889650c540/bissell_revolution_carpet_cleaner_user_manual.pdf
    • http://zixugudarasol.epizy.com/lagu_orkes_amelia_jepara_terbaru.pdf
    • http://rojaxenutu.rf.gd/wagilulara.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.

FilenameKindSourceSize
font_00_sfnt_off0000edc4.bin
f94b114bf42b433a32d28fe74c772e95cd909d46ae98b2bf3bf5ace12f0e8efc		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEDC4 4920 bytes
font_01_sfnt_off0000fe58.bin
1eeb1e846ce511aa356e45303d663773243bae022b4e8d63a5b97f5ba027118e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xFE58 10404 bytes
font_02_sfnt_off000121f4.bin
d1f4a20f0e35a0564be54678b929bb8c711862c507f070c2b9a6abea8daf4378		 pdf-font-stream PDF embedded font (sfnt) at offset 0x121F4 4324 bytes

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