Malicious PDF — malware analysis report

Static analysis result for SHA-256 95dcf992fb06e2ef…

MALICIOUS

PDF

73.0 KB Created: 2021-02-28 19:45:16 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9035ffe4d3110515f14b82c47889036c SHA-1: 8fb32ae54395e5f1b28fe3d4a2c100c4237585d7 SHA-256: 95dcf992fb06e2ef4a6768b5865578452aa921694ebe489a1784a0cee0012b6c
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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://gimoguvi.ru/award?keyword=interior+design+classes+in+michigan PDF link annotation
    • http://khanapoorti.com/cbre_data_centre_market_report8erg2.pdfIn PDF document text
    • http://shoop-ft.ru/tobar_36674_mini_remote_control_speed_boatfpm2j.pdfIn PDF document text
    • https://nozirurabi.weebly.com/uploads/1/3/0/7/130738896/6a892d.pdfIn PDF document text
    • https://katesagi.weebly.com/uploads/1/3/4/8/134864962/sejales.pdfIn PDF document text
    • https://cdn.sqhk.co/rorezina/eX5jajc/bubble_me_bubble_tea_menu_and_prices.pdfIn PDF document text
    • http://opticsystem.website/81278260478865ca.pdfIn PDF document text
    • http://netekepipavosis.sportsontheweb.net/head_first_jquery_github.pdfIn PDF document text
    • http://gdztut.com/ripanudiwuvawupvp56n.pdfIn PDF document text
    • https://cdn.sqhk.co/pifonode/9kKghid/gukigipupile.pdfIn PDF document text
    • http://irisca.online/zineguwukawurefarep7nr.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/i8jg279/rabizaletajajeje.pdfIn PDF document text
    • http://erogancolumbia.site/nikodubenulagijifeliwoq4vda.pdfIn PDF document text
    • https://cdn.sqhk.co/gulifunanale/pje2hbo/dragon_ball_minecraft_modpack.pdfIn PDF document text
    • http://datingdate.site/publisher_small_tent_card_templateiw3v2.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000e1da.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1DA 5288 bytes
SHA-256: 36fa7366ad6e1aa1ac4d6e5665ccdd123b3b508c0224ea0b69a8555e3ca0a87d
font_01_sfnt_off0000f3a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF3A9 10544 bytes
SHA-256: e42996fdef85af61ee6010b3906ae800bee8a6279b160baf568ce26f37ec7f7f