Malicious PDF — malware analysis report

Static analysis result for SHA-256 59adfc72f2097917…

MALICIOUS

PDF

71.3 KB Created: 2021-03-03 17:45:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: e0291bec9b3d06e203db9b23b06cb2e2 SHA-1: e1412d850684dae64a1423f1f201f24aa83712b3 SHA-256: 59adfc72f20979170423bb5cc9c8cdc0017f59aa1fe01ac56241c87b883cd09e
96 Risk Score

Malware Insights

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

The PDF contains an embedded URL that, when clicked, directs the user to a suspicious domain related to a 'DMV practice permit test'. This is a common lure for phishing or malware distribution. ClamAV and ML classifiers strongly indicate malicious intent, and the PDF structure itself contains an external URI pointing to the malicious domain.

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://resalured.ru/strik?utm_term=anderson+sc+dmv+practice+permit+test
    • https://cdn-cms.f-static.net/uploads/4456379/normal_6018c02d743bc.pdf
    • https://cdn-cms.f-static.net/uploads/4450506/normal_6038faabc16c1.pdf
    • https://static.s123-cdn-static.com/uploads/4489834/normal_5fe5737745498.pdf
    • https://static.s123-cdn-static.com/uploads/4471234/normal_5fc65b4ab6d5d.pdf
    • http://moratelusubuzol.22web.org/hackney_council_report_anti_social_behaviour.pdf
    • https://cdn.sqhk.co/dapubebireba/jeghgj9/police_siren_mp3_download_pagalworld.pdf
    • http://www.ascendercorp.com/
    • http://www.ascendercorp.com/typedesigners.html
    • https://s3.amazonaws.com/bugutaj/diligenoguwo.pdf
    • http://supetok.rf.gd/lusugepafigikobupaje.pdf
    • https://s3.amazonaws.com/napisakaluja/best_website_to_movies_quora.pdf
    • https://s3.amazonaws.com/sezebepit/40509981050.pdf
    • https://s3.amazonaws.com/womirofop/fugurig.pdf
    • https://s3.amazonaws.com/figugipopar/xulumomawuzewados.pdf
    • https://s3.amazonaws.com/xamibudasagas/kagolaxutasu.pdf
    • http://taxisariwoboduz.epizy.com/free_auction_bridge_card_game.pdf
    • https://s3.amazonaws.com/zibenoroduzuw/because_i_m_happy_audio_song.pdf
    • https://s3.amazonaws.com/pivetuzadujo/alchemist_item_guide_ragnarok_mobile.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_off0000da49.bin
39c112bdd98221ba753cead74619352b71669ff8d0e10f5db722e1764fa52b1b		 pdf-font-stream PDF embedded font (sfnt) at offset 0xDA49 5236 bytes
font_01_sfnt_off0000ec04.bin
84b2c81942595c1883e463857aad3cac865f2657b0d81bcffbcd92e99ba5ba1a		 pdf-font-stream PDF embedded font (sfnt) at offset 0xEC04 10636 bytes

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