Malicious PDF — malware analysis report

Static analysis result for SHA-256 96a0f6eea5035c8b…

MALICIOUS

PDF

72.7 KB Created: 2021-03-03 13:59:20 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-23
MD5: a3a2613546848f49a2453282921cac77 SHA-1: b091891637ad20ae1e51c35c8271c6b3b4529626 SHA-256: 96a0f6eea5035c8b3fd67a05acab13c0df420592762b7ca721e335e83ab8dbe1
126 Risk Score

Malware Insights

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

This PDF file was flagged by ML classifiers and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs pointing to disposable domains, suggesting a link farm or phishing lure designed to redirect users to potentially harmful content. The document body, though heavily obfuscated, appears to be a lure related to academic or technical topics to mask the malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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.
  • 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://bologen.ru/award?keyword=how+to+address+a+letter+of+recommendation+for+medical+school PDF link annotation
    • http://giwosoto.sportsontheweb.net/genie_powermax_1500_manual.pdfIn PDF document text
    • http://tewatag.medianewsonline.com/how_to_download_ti-84_calculator_on_computer.pdfIn PDF document text
    • https://cdn.sqhk.co/mozoposowi/icYhhjd/50316765128.pdfIn PDF document text
    • https://cdn.sqhk.co/wugeguxu/Xomggja/espn_nfl_score_predictions_week_8.pdfIn PDF document text
    • http://xitabijasava.getenjoyment.net/saxon_math_course_3_power_up_workbook.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4453902/normal_5fdbb59aa1aee.pdfIn PDF document text
    • https://cdn.sqhk.co/wamamuli/jjLmSCD/pinball_flipper_full_apk_download.pdfIn PDF document text
    • http://rabizepafuxonag.mypressonline.com/bojotegagam.pdfIn PDF document text
    • https://cdn.sqhk.co/serodozire/gcJhbgh/ninjago_season_14_release_date.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4381752/normal_6023d6e2e677d.pdfIn PDF document text
    • http://kovatafob.mypressonline.com/31227354517.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4415291/normal_5ff53b94e4398.pdfIn PDF document text
    • https://cdn.sqhk.co/naludibeg/fighhbb/zara_home_promo_code_ireland.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4428033/normal_5ff5ac045c5f5.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4375885/normal_5fc8a38c2e6b3.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4490929/normal_5ffc969f4e203.pdfIn PDF document text
    • https://cdn.sqhk.co/xovujiroveg/bZjbC1D/grand_prix_story_2_apk_mod.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4481695/normal_5ff315632625e.pdfIn PDF document text
    • http://vurujupafowutox.mypressonline.com/vufamuja.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://fojosotum.myartsonline.com/temarenuzinotesi.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_off0000e09a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE09A 5316 bytes
SHA-256: 59824e04e7a9501276e3c290fbeb0487ab8b2ff9cd3dfd794503f0af9aaf3f25
font_01_sfnt_off0000f293.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF293 10156 bytes
SHA-256: 379a2db8297e34bd96e1ea8033b3705444aed694bc31b14ea10caf373ba30421

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