Malicious PDF — malware analysis report

Static analysis result for SHA-256 3bcfaa51d71b2c2f…

MALICIOUS

PDF

67.9 KB Created: 2021-01-31 15:39:50 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 8ea7d88427202c12a52a1acdfacf6a54 SHA-1: d5ce2b5093a4d70282102d4bb679ee50daab906a SHA-256: 3bcfaa51d71b2c2ff7cb5c01fab2948c31216b4e342ee92117961c8d6ce30c00
126 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
  • 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://trafficel.ru/wb?keyword=highway%20rider%20unblocked PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4368736/normal_5fed73ab2cf96.pdfIn PDF document text
    • http://itchia.space/free_heroes_2_t-_800_mod_downloadrar5a.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485445/normal_5fd76d9e4a2d1.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4369518/normal_5fdfca4348154.pdfIn PDF document text
    • http://sudenusona.66ghz.com/llm_date_sheet_kurukshetra_university_2019.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4376371/normal_5fe92a2112ffd.pdfIn PDF document text
    • http://gufutaca6.xyz/zidejavofasimaxjh76.pdfIn PDF document text
    • http://electorat.org/exampro_cell_biology_trilogy_answerswkucz.pdfIn PDF document text
    • http://big-ita.space/10092049816zcc7x.pdfIn PDF document text
    • http://bloomwithdeanna.com/nubimunaxozurr6gs.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://zopimubusa.rf.gd/bootable_pen_drive_format_software.pdfIn PDF document text
    • http://gagelenobom.epizy.com/93712573053.pdfIn PDF document text
    • http://wivifizurata.epizy.com/food_adulteration_act_2006.pdfIn PDF document text
    • https://s3.amazonaws.com/lorerexeg/lt_reflective_writing_guide.pdfIn PDF document text
    • http://lobaman.epizy.com/word_puzzle_game_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/nedijowewoded/namilamoxun.pdfIn PDF document text
    • http://zogutofarori.epizy.com/29414832120.pdfIn PDF document text
    • https://s3.amazonaws.com/liwara/pupafineji.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_off0000ce22.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE22 5380 bytes
SHA-256: 000a8942c5ff0bb5a8679a8dcd63c4249bcebfee43c79022d373c7102ceaeeee
font_01_sfnt_off0000e07f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE07F 10096 bytes
SHA-256: b985611506e3316a731e9f6919578bda43cb5b0cc226cfd3dab12a490b1fa131