Malicious PDF — malware analysis report

Static analysis result for SHA-256 2c1fb0b397cbcbdf…

MALICIOUS

PDF

65.5 KB Created: 2021-02-17 09:14:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 09fe58b83c26a2ffd3824974dd98128f SHA-1: 66d2d0fffcd816f23329130a8c94346644a2b890 SHA-256: 2c1fb0b397cbcbdf7f5391af0006541e41dc944986712ee0b422950d4d5065e3
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9992

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/wix?keyword=pennswoods+classifieds+apartments In PDF document text
    • https://fuxiwuzepideka.weebly.com/uploads/1/3/1/3/131381491/pitaxuxesevowizirol.pdfIn PDF document text
    • https://xubivolimoba.weebly.com/uploads/1/3/0/7/130740090/022cb.pdfIn PDF document text
    • https://cdn.sqhk.co/voguzasijur/eLLpJCZ/motogp_race_championship_quest_apk.pdfIn PDF document text
    • http://biwonomapul.iblogger.org/zomokapuwegavupov.pdfIn PDF document text
    • https://jasofemelufes.weebly.com/uploads/1/3/0/7/130740231/wufutizapi.pdfIn PDF document text
    • https://cdn.sqhk.co/jutusaxibu/4f6Ci2z/baraxadijozufisen.pdfIn PDF document text
    • https://cdn.sqhk.co/livixugakuf/hh9Phc9/zuzax.pdfIn PDF document text
    • https://wozizagozesa.weebly.com/uploads/1/3/4/8/134848764/6778995.pdfIn PDF document text
    • https://siviwoxepigomuz.weebly.com/uploads/1/3/0/7/130739754/balupi.pdfIn PDF document text
    • http://mosoxiliraf.iblogger.org/busybox._zip_android.pdfIn PDF document text
    • http://art-practice.org/kushmanda_mata_ki_photo914d7.pdfIn PDF document text
    • http://crispyset.online/google_plus_photosssxyi.pdfIn PDF document text
    • https://cdn.sqhk.co/dilereku/rn0ihyk/daily_bucket_list_2020_teenager.pdfIn PDF document text
    • https://cdn.sqhk.co/xuxiropuwomo/l1VDjgI/65391556070.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://lijivuzase.rf.gd/3d_games_apk_pure.pdfIn PDF document text
    • http://vezapuro.rf.gd/cute_formal_dresses_for_13_year_olds.pdfIn PDF document text
    • http://kogosiji.epizy.com/xoxudatalovedix.pdfIn PDF document text
    • http://pumifaxiko.rf.gd/1890004246.pdfIn PDF document text
    • http://bejuxufuvojofa.rf.gd/luzisejisewawumipijag.pdfIn PDF document text
    • http://pigibotokaper.epizy.com/18624554138.pdfIn PDF document text
    • http://gaxokumixopo.epizy.com/wezupibilazufisetor.pdfIn PDF document text
    • http://rozipiliwune.epizy.com/581728619.pdfIn PDF document text
    • http://xefejada.epizy.com/77537624845.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_off0000c2b4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC2B4 5396 bytes
SHA-256: 084c0b4d841cd08486036fdc85651170848dff25a004dccd18f4a9f097b2272b
font_01_sfnt_off0000d50d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD50D 10380 bytes
SHA-256: 25d8cacc2b34ecf4a5fd1713a1b8d94676d55887ae61ee12a4023d91d9bf6eff

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