Malicious PDF — malware analysis report

Static analysis result for SHA-256 01d25dccab5bcdc2…

MALICIOUS

PDF

76.3 KB Created: 2021-04-26 20:34:05 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-09-23
MD5: 860cc3cf4ca0b0cc91770c69194303e4 SHA-1: 14741345a21b580c3d36ce02ae0185e088a4414a SHA-256: 01d25dccab5bcdc2d4ffff182b6aa0d3abb44aed6717aaa321ceab5b49d1ec1a
96 Risk Score
Tags
free-cdn-ebook-manual-lure

Malware Insights

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

This PDF document was flagged as malicious by ClamAV and an ML classifier. The file embeds external URLs that direct users to attacker-controlled resources. Specific URLs and indicators for this sample are listed in the indicators section.

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://zajinet.ru/strik?utm_term=can+breastfeeding+cause+sagging+breast PDF link annotation
    • http://fudazozotakaxal.mywebcommunity.org/wafujaterodafutixujojin.pdfIn PDF document text
    • http://nugawijuxuv.mywebcommunity.org/les_fleurs_du_mal_english_translation.pdfIn PDF document text
    • http://vurujupafowutox.mypressonline.com/69525178802.pdfIn PDF document text
    • http://numulul.mygamesonline.org/fur_elise_piano_sheet_music_free.pdfIn PDF document text
    • https://cdn.sqhk.co/zowonefaso/ijiiicG/best_kung_fu_action_movies_2019.pdfIn PDF document text
    • http://gavediteriremuv.medianewsonline.com/cambridge_essential_english_dictionary_download.pdfIn PDF document text
    • http://nokasosozigof.mypressonline.com/56451511760.pdfIn PDF document text
    • https://cdn.sqhk.co/sezakurebe/IidhwDW/zaputalosalumazibiguf.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/vatakefojunib/ziwekigabebagepolapu.pdfIn PDF document text
    • https://s3.amazonaws.com/jexijer/lerugewi.pdfIn PDF document text
    • https://s3.amazonaws.com/wazotojemov/wallet_like_app_for_android.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/f13516f4-7735-43fa-a973-d9d1f501f4f0/how_to_write_a_critical_analysis_essay_in_nursing.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6573db18-9257-44ce-8757-3c925cdbf1e0/are_maytag_washers_dependable.pdfIn PDF document text
    • https://s3.amazonaws.com/lomuper/becoming_warren_buffett_mp4.pdfIn PDF document text
    • https://s3.amazonaws.com/sakaburepagase/accidents_reported_in_georgia.pdfIn PDF document text
    • https://s3.amazonaws.com/mukutud/kung_fu_hustle_streaming_english_sub.pdfIn PDF document text
    • https://s3.amazonaws.com/wexoteluwag/pit_boss_700fb_user_manual.pdfIn PDF document text
    • https://s3.amazonaws.com/babuxufarizuxur/arithmetic_reasoning_and_analytical_thinking.pdfIn PDF document text
    • https://s3.amazonaws.com/jusagi/zenuvidenokabilumur.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_off0000f074.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF074 5200 bytes
SHA-256: 46b5ad9b3f944a130483e438e37667496a67ca78f2cb2240b86a7ae6f85cc0d0
font_01_sfnt_off0001022b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1022B 9836 bytes
SHA-256: 7dad4ea99143adab8843d90258a1d0e31cc9aa8b4edd0bb698c3a1a8267b8d1c

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