Malicious PDF — malware analysis report

Static analysis result for SHA-256 099a767b44f4f9cb…

MALICIOUS

PDF

67.1 KB Created: 2021-02-16 16:18:33 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: f54b4a48b02bcd06d0462f8db7827802 SHA-1: 6f8b82cea7f112f157aad5d7d5187f34c9a9672b SHA-256: 099a767b44f4f9cb8f82d0751fd0fac579e0ca2fd39fb54781c9b6bb8c338480
126 Risk Score

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://jottigo.ru/aws?utm_term=capello+clock+radio+cr22+manual PDF link annotation
    • https://sudarotabodubig.weebly.com/uploads/1/3/1/4/131407445/legutatuxu.pdfIn PDF document text
    • http://winoraama.website/used_ps_vita_games_for_sale8kg0q.pdfIn PDF document text
    • http://rizuxikasosokeg.22web.org/emotional_intelligence_2._0_free.pdfIn PDF document text
    • https://wibejimexog.weebly.com/uploads/1/3/4/4/134466339/pinematapi-navifunejevudi-gisig.pdfIn PDF document text
    • http://urro-hu.com/ohio_officer_killed_at_home_depothb92s.pdfIn PDF document text
    • https://vafukomoruf.weebly.com/uploads/1/3/4/8/134862603/pimezesegoxir.pdfIn PDF document text
    • http://koteyarn.moscow/2776521739jmvge.pdfIn PDF document text
    • https://tunoritusaw.weebly.com/uploads/1/3/5/3/135328070/wapuze.pdfIn PDF document text
    • http://puzigodemabotod.iblogger.org/aluminum_panel_sheet.pdfIn PDF document text
    • https://cdn.sqhk.co/nivunufozub/VihgdSX/highway_patrol_song_paul_brandt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tasefabomodewiv.epizy.com/artritis_reumatoide_2018.pdfIn PDF document text
    • https://s3.amazonaws.com/kukazowox/sevijufazeralovoxiwapo.pdfIn PDF document text
    • https://s3.amazonaws.com/levumoduf/abcd_telugu_movie_video_songs_2019.pdfIn PDF document text
    • https://s3.amazonaws.com/tikofaketonub/39551778742.pdfIn PDF document text
    • http://jolavewavesuj.epizy.com/ragogazawuvelelamik.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_off0000c8fb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC8FB 5144 bytes
SHA-256: e6cc702e28d7edbae4c40bff4c196fd5d11c022d9337a4822c975b48ee8c877a
font_01_sfnt_off0000da61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDA61 11012 bytes
SHA-256: 6842ae149b98f1d0ace49e5912f121d0f9d6dee12ad91c00d0227bcc55b384eb