Malicious PDF — malware analysis report

Static analysis result for SHA-256 e94137811c7f2ec3…

MALICIOUS

PDF

68.3 KB Created: 2021-02-28 01:27:52 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: c521fd99db84fb9aa53f794cbf8153db SHA-1: aadc56f2a1d69a7378392f79cdb7107781d8bf07 SHA-256: e94137811c7f2ec3d4a4bd4de0306d5d896b231fee033df57d1ba3de82b0a135
184 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
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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.
  • 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://yafferge.ru/award?keyword=2010+chrysler+town+and+country+transmission+dipstick In PDF document text
    • http://lizowaw.scienceontheweb.net/sadapeboxiwamalux.pdfIn PDF document text
    • https://cdn.sqhk.co/puxolika/ce5ihjL/47435025001.pdfIn PDF document text
    • https://cdn.sqhk.co/tajudozizif/ifZHcPy/nutrition_healthy_eating_lifestyle_plan.pdfIn PDF document text
    • http://pogawubujogeje.mypressonline.com/the_primal_blueprint_amazon.pdfIn PDF document text
    • https://cdn.sqhk.co/ranemagesoga/iedhiju/86850770595.pdfIn PDF document text
    • https://cdn.sqhk.co/gokitoser/3m6icii/origami_instructions_easy_flower.pdfIn PDF document text
    • https://cdn.sqhk.co/rovonoset/7orjih8/wood_block_puzzle_classic_for_pc.pdfIn PDF document text
    • http://zunuruxeguxifi.mygamesonline.org/why_wont_my_shift_gear_move.pdfIn PDF document text
    • http://vuvajujuli.mygamesonline.org/concepts_of_database_management_9th_edition.pdfIn PDF document text
    • https://cdn.sqhk.co/nowovadizeb/ugiy1gh/1681131033.pdfIn PDF document text
    • http://mosebuzixat.mywebcommunity.org/28062773097.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://tokavasetalan.epizy.com/76883666217.pdfIn PDF document text
    • http://gogujigasad.onlinewebshop.net/the_spectacular_now_full_movie_online_123movies.pdfIn PDF document text
    • http://sabiwilurase.atwebpages.com/rock_candy_xbox_one_controller_cord.pdfIn PDF document text
    • https://s3.amazonaws.com/jifedefujodu/mawoxu.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_off0000ce07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCE07 5804 bytes
SHA-256: 1e95b03025271a33321f56bf6ec7fbf3600dbd8d4f26ac2cf6b8ac566bd5aa01
font_01_sfnt_off0000e1b6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B6 10144 bytes
SHA-256: 5a57ab52488f15e6607b59bcdabab5ddd7701a34b749917e706c472284eae339