Malicious PDF — malware analysis report

Static analysis result for SHA-256 19de22ec713b47d9…

MALICIOUS

PDF

71.7 KB Created: 2021-02-26 00:02:38 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: a84b810642c38f36f6287d532dc486dd SHA-1: aaf1f80131a6cde571f7e2ceffae815792df6484 SHA-256: 19de22ec713b47d9467ab13d12f70aa0b67134a714f709188e4de63abace9af6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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://baarspo.ru/award?keyword=does+kanawha+county+have+school+on+presidents+day PDF link annotation
    • https://temabodanifow.weebly.com/uploads/1/3/1/4/131454916/juzes.pdfIn PDF document text
    • https://devubavoxonor.weebly.com/uploads/1/3/2/7/132741482/05d6add88004a.pdfIn PDF document text
    • https://cdn.sqhk.co/xuzuvazol/hizhgih/shake_shack_menu_prices_singapore.pdfIn PDF document text
    • https://nokesopupikes.weebly.com/uploads/1/3/4/7/134767934/4085872.pdfIn PDF document text
    • https://cdn.sqhk.co/sogefuluf/cZvPjaz/guide_for_fire_craft_3d_pixel_worlds.pdfIn PDF document text
    • https://vozunekoba.weebly.com/uploads/1/3/4/9/134902797/tirikigo-waken-gupemetaza-wiraw.pdfIn PDF document text
    • https://cdn.sqhk.co/rizijuwet/hNJ0Dgd/the_walking_dead_season_1_game_cast.pdfIn PDF document text
    • http://nojagemegoxeda.22web.org/take_screenshot_mobile_android.pdfIn PDF document text
    • https://cdn.sqhk.co/bidelefo/jawJOgh/tasty_words_answers_level_18.pdfIn PDF document text
    • https://somokowu.weebly.com/uploads/1/3/1/3/131383604/0f587366c.pdfIn PDF document text
    • https://wabalolosezuluf.weebly.com/uploads/1/3/4/4/134462862/6294fe9.pdfIn PDF document text
    • https://cdn.sqhk.co/gonolesuzam/gcihAhg/23418444019.pdfIn PDF document text
    • https://cdn.sqhk.co/tatidukigag/g6hjNif/77573984272.pdfIn PDF document text
    • https://cdn.sqhk.co/jipogidara/jconjaX/numuzefirijidakojemonuzo.pdfIn PDF document text
    • https://dofemavuxowag.weebly.com/uploads/1/3/0/7/130739836/xuleresigeruki.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://s3.amazonaws.com/niporofez/sigoriviwifinede.pdfIn PDF document text
    • https://s3.amazonaws.com/dudujopixejikug/jumuk.pdfIn PDF document text
    • https://s3.amazonaws.com/wewuxuviwar/s_chand_biology_class_9.pdfIn PDF document text
    • http://kagiweluxipo.epizy.com/blank_space_violin_sheet_music.pdfIn PDF document text
    • https://s3.amazonaws.com/bakoloj/camscanner_premium_apk_full_2019.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 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000cd2e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD2E 5360 bytes
SHA-256: dbbe54e576e0ee6ee2db3732e6f5664adac1168d1d8feff99d47c41f247b0fad
font_01_sfnt_off0000df7a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF7A 10380 bytes
SHA-256: 17f2fd6b2dc73deaafe74464cd389e937eb89fcb17f88e51a6b4b86611e51fae
font_02_sfnt_off0001030f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x1030F 4324 bytes
SHA-256: ff5f0ef16caf3e97cd1984b3a03ea88e11eab8cf63d2ee006085a4b9995833f3

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