Malicious PDF — malware analysis report

Static analysis result for SHA-256 32cce9ab8ecc4b76…

MALICIOUS

PDF

69.0 KB Created: 2021-02-15 10:46:00 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: e40648a63ee163eed1f1ceb0240b5a6d SHA-1: 0e344fab7e562d8e963e46fc57a1d90532a0c5aa SHA-256: 32cce9ab8ecc4b7607fccbb39923b0219efb619fcbb8eacbf0ad175131264985
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • 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://crophysi.ru/wb?keyword=vicks%20cool%20moisture%20humidifier%20filter%20replacement In PDF document text
    • http://mjawebdesign.net/increase_audio_buffer_size_windows_10tzivm.pdfIn PDF document text
    • http://justamorem.com/14775456622d64uy.pdfIn PDF document text
    • https://cdn.sqhk.co/rinugezig/idjjDTc/running_distance_tracker_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/bamopilu/QicqOUn/mrush_money_banking_stock_market_investing_game.pdfIn PDF document text
    • http://coloradocustomelectric.com/busajedamuwelutonexuwajbkv7.pdfIn PDF document text
    • http://getsalle.xyz/escmid_guidelines_pneumoniar15xf.pdfIn PDF document text
    • https://cdn.sqhk.co/kipebakebe/bahfRji/38435480602.pdfIn PDF document text
    • https://cdn.sqhk.co/nobukomorur/L6ibRgc/75030894837.pdfIn PDF document text
    • http://fashion-deals.xyz/pagoralizolima42xfq.pdfIn PDF document text
    • http://ins.expert/42608460358trt1c.pdfIn PDF document text
    • https://cdn.sqhk.co/divojimo/uhghcy0/4096069890.pdfIn PDF document text
    • http://sfhgfje5df.xyz/trim_a_home_christmas_tree_manuali2bi7.pdfIn PDF document text
    • http://wifejopoxakobo.iblogger.org/govinaximepivusolowemunop.pdfIn PDF document text
    • http://pshcomonhere.xyz/tv_advertisement_ringtones_free_downloadm88eb.pdfIn PDF document text
    • https://cdn.sqhk.co/fegibidizog/wjjj2Il/sajunukazumusufotuw.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000d186.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD186 5424 bytes
SHA-256: 626a6440a6f8c74e25d6f34930e79fdd3d44a45867e736f22bf4620f393cac34
font_01_sfnt_off0000e3d3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE3D3 10276 bytes
SHA-256: 69941d18f8f6877d36b1d730bf9131997adc637f4ef033e1a4d975c26e718004