Malicious PDF — malware analysis report

Static analysis result for SHA-256 afd5916c50e33dd7…

MALICIOUS

PDF

67.8 KB Created: 2021-02-06 19:35:15 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 268ffe7b0741332c05c96cad0f483527 SHA-1: 5f9323b3068500434ca7d732de38b0215d36bade SHA-256: afd5916c50e33dd757324e3ca4946b5b6a2557e6da4809478cc0814623baa9e2
136 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • 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://jacksth.ru/aws?utm_term=pathfinder+bestiary+2+pdf+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4427287/normal_600bf7018a2eb.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4371524/normal_6016414228ebe.pdfIn PDF document text
    • http://biomanix.best/all_rounder_audio_songs_com604x7.pdfIn PDF document text
    • http://igcopyrightverify.com/57415878753g4uo3.pdfIn PDF document text
    • http://elinekici.online/tumblr_girl_names_listwh6y9.pdfIn PDF document text
    • http://guketaz.iblogger.org/temupo.pdfIn PDF document text
    • https://cdn.sqhk.co/wogefosa/fGkY60m/dancing_road_color_ball_run_game.pdfIn PDF document text
    • http://mrshadow.net/zijefa8goex.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4483610/normal_5fe5d9f03dcfc.pdfIn PDF document text
    • http://dfwshootersupply.com/vejojerifutmxwc.pdfIn PDF document text
    • https://cdn.sqhk.co/tatiwurixiwo/geigBhh/woodturning_tools_for_sale.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4454672/normal_600a3f4c9c9eb.pdfIn PDF document text
    • http://creditactive.info/zoralumapupicakpt.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/bokofapig/hd_online_movies_website.pdfIn PDF document text
    • https://s3.amazonaws.com/xozeb/abbaigaru_movie_naa_songs.pdfIn PDF document text
    • https://s3.amazonaws.com/ladojenefe/debian_buster_alpha_5.pdfIn PDF document text
    • https://s3.amazonaws.com/lixisariwulo/kernel32._dll_windows_xp_free.pdfIn PDF document text
    • http://dapunujunet.epizy.com/bollywood_movies_list_2018.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_off0000cabf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCABF 5472 bytes
SHA-256: 2ca7b19106e4f6e71a800c61098ace59a46f8efd3dc9398058978ee31d6335a7
font_01_sfnt_off0000dd58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD58 10748 bytes
SHA-256: 58033eb2dc7dc97e92fd9c9650e25bf4093ac48cc1a59c1a716c87d6238d22fa