Malicious PDF — malware analysis report

Static analysis result for SHA-256 54b7fb73ce225a33…

MALICIOUS

PDF

78.6 KB Created: 2021-02-25 05:39:44 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: df1d8447441dd6d7ac725b195fb9eedf SHA-1: c2fa2af483309dedd45fbe595a243238225c1ba2 SHA-256: 54b7fb73ce225a3317030e4b01c23988bfc27c0bcfbec0674f1bb97f674a3eb6
96 Risk Score

Malware Insights

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

This PDF file was flagged by multiple heuristics, including a machine learning classifier and ClamAV, indicating malicious intent. The document body, though partially obfuscated, suggests a lure related to 'Brute snowblower parts diagram'. An external URI pointing to 'https://druttle.ru/123?utm_term=brute+snowblower+parts+diagram' was extracted, which is likely the malicious payload delivery mechanism.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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/123?utm_term=brute+snowblower+parts+diagram PDF link annotation
    • http://zumewidife.mygamesonline.org/where_can_i_watch_the_art_of_racing_in_the_rain_online.pdfIn PDF document text
    • https://cdn.sqhk.co/givifevulo/guNl4kV/coins._ph_wallet_log_in.pdfIn PDF document text
    • https://cdn.sqhk.co/jekuzedu/MgjjaER/rolling_ball_2_player.pdfIn PDF document text
    • https://cdn.sqhk.co/tutabudoxuwa/ihnisgg/dji_mavic_mini_drone_remote_controller.pdfIn PDF document text
    • http://wotidoteked.mywebcommunity.org/gesowusolasezusebotivipi.pdfIn PDF document text
    • https://cdn.sqhk.co/ribobujir/uhezzBW/clash_of_clans_private_server_download_for_android.pdfIn PDF document text
    • https://cdn.sqhk.co/lutadamafe/jfoflja/audio_setup_wizard_adobe_connect.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/gawabog/16057648284.pdfIn PDF document text
    • http://vilepobafomunow.atwebpages.com/lukerowudulabefob.pdfIn PDF document text
    • http://nejesezape.myartsonline.com/wasorefelefuwexowike.pdfIn PDF document text
    • http://wejufutaz.onlinewebshop.net/lotesedisifomoso.pdfIn PDF document text
    • https://s3.amazonaws.com/wekibik/dichiarazione_di_conformita_andreani.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_off0000f2ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF2EF 5560 bytes
SHA-256: 8bf03204487fff8eeb6cb097efd8eda1a080104e746f798b82524c80b4a3b26b
font_01_sfnt_off000105cd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x105CD 11376 bytes
SHA-256: b4c44ef7fa9e876ac826009c3343abf20a79acd765335b1aeec1a82059034ce6

Open this report in the interactive analyzer, or submit your own file for analysis.