Malicious PDF — malware analysis report

Static analysis result for SHA-256 2584d3d29f764826…

MALICIOUS

PDF

79.3 KB Created: 2021-02-23 20:09:48 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 56c112506220cfd5e9e3c9ac3934b87f SHA-1: 7122deba612870490e9b17a25032a7585c98d38b SHA-256: 2584d3d29f76482626cefc27b31b1ee2ea35f36a3af26d41d08a2f9474090af0
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://bologen.ru/wix?keyword=emanation+ex+guide PDF link annotation
    • https://cdn.sqhk.co/napumefu/bIhfigW/amazing_world_of_gumball_games_nightmare_in_elmore.pdfIn PDF document text
    • http://cz-nitrof.website/marksheet_format_in_ms_word4v2j5.pdfIn PDF document text
    • http://changely.club/73938900575wpi85.pdfIn PDF document text
    • https://cdn.sqhk.co/furugilenu/haiiTZu/bojowonedowoxederumuvifu.pdfIn PDF document text
    • http://tgesheff.xyz/garmin_nvi_1390_update_kostenlos_20197rhul.pdfIn PDF document text
    • https://cdn.sqhk.co/lanuniwa/XR9ggje/minecraft_survival_world_names.pdfIn PDF document text
    • https://cdn.sqhk.co/rivitovolu/i1ugige/tokerujeladupexanul.pdfIn PDF document text
    • http://ogranicbio.space/kugibifidajaleowofb.pdfIn PDF document text
    • https://cdn.sqhk.co/wekaradukuve/jiNudcI/the_sims_mobile_mod_apk_and_obb.pdfIn PDF document text
    • https://cdn.sqhk.co/ligumorik/7pjgojb/simple_modern_lids_coupon.pdfIn PDF document text
    • https://cdn.sqhk.co/xevezele/aGCaijL/full_steam_ahead_idiom_definition.pdfIn PDF document text
    • https://cdn.sqhk.co/tinulafi/8jdNtI3/movie_box_app_download_ios_13.pdfIn PDF document text
    • http://natnat.fun/basketball_game_flyer_template_free565nk.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/dazutun/52810955517.pdfIn PDF document text
    • https://s3.amazonaws.com/jepavilutabilel/indian_movies_sites.pdfIn PDF document text
    • https://s3.amazonaws.com/salosibejodod/impinj_r2000_datasheet.pdfIn PDF document text
    • https://s3.amazonaws.com/zexozavo/tebenuxulajelitagijakafin.pdfIn PDF document text
    • https://s3.amazonaws.com/laginekux/fimowefowok.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_off0000fc17.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFC17 4864 bytes
SHA-256: c990025373013088a39c53a2d07eac9240dc93b9eefe6bc6c964cb19ee731d22
font_01_sfnt_off00010c96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10C96 10504 bytes
SHA-256: 1b949c75c403f02e25004146b7ed7ec9c07e80d2e8642db8549793cb419c5ad4