Malicious PDF — malware analysis report

Static analysis result for SHA-256 50f9bfe5ee86f1be…

MALICIOUS

PDF

75.8 KB Created: 2021-02-27 17:38:22 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 8ab38886c5161ad6510c3c0acebfe624 SHA-1: 67aa9077b4b3bfaa27079734166eed7f5196e0df SHA-256: 50f9bfe5ee86f1bee9e6bd366aa4b6fa1aea99a7a8a9217960b5332354de167f
146 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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://resalured.ru/wix?keyword=messenger+app+download+apk+lite PDF link annotation
    • http://lnstagram-badge-verification.com/how_to_write_a_budget_proposal_for_a_grantt8ef1.pdfIn PDF document text
    • https://cdn.sqhk.co/xamubana/7ide1Hy/8982089630.pdfIn PDF document text
    • http://siviveko.getenjoyment.net/xusizadedoxubajiwezumawem.pdfIn PDF document text
    • https://cdn.sqhk.co/dodamewope/b6Gzhjd/roblox_promo_codes_october_2020_for_clothes.pdfIn PDF document text
    • http://werewov.22web.org/kazuribatezuk.pdfIn PDF document text
    • https://cdn.sqhk.co/kozuvurop/aSidwgh/nupazodegojake.pdfIn PDF document text
    • http://labifovejes.mypressonline.com/the_easy_5-ingredient_ketogenic_diet_cookbook_download.pdfIn PDF document text
    • http://xoxuvajes.mywebcommunity.org/las_mujeres_que_aman_demasiado_resumen.pdfIn PDF document text
    • https://cdn.sqhk.co/dasulujina/xmdyehi/general_sniper_na_brother.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wonanikapudidak.atwebpages.com/14372992730.pdfIn PDF document text
    • http://pozidijapepore.atwebpages.com/rival_20_quart_programmable_roaster_oven_directions.pdfIn PDF document text
    • https://s3.amazonaws.com/davubewu/how_do_i_reset_my_citizen_eco_drive_e820.pdfIn PDF document text
    • http://fujifumava.epizy.com/74759309728.pdfIn PDF document text
    • http://xaxevuvu.epizy.com/soal_dan_pembahasan_medan_listrik.pdfIn PDF document text
    • https://s3.amazonaws.com/kegubinefuda/27329382116.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_off0000ed69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED69 5288 bytes
SHA-256: c371fefbfcc920d2d76e19dbff066e84489ea832bba4bdb0a39ddd618cecf33f
font_01_sfnt_off0000ff90.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFF90 10276 bytes
SHA-256: 3be1819cb00bd79c63da53ff48880ca0a2651c798f2143b85a91a4dc96ac7fbf