Malicious PDF — malware analysis report

Static analysis result for SHA-256 050827e76a4cf864…

MALICIOUS

PDF

70.6 KB Created: 2021-01-20 21:07:35 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: 0c4e9c238b268c407c5885787eceaa74 SHA-1: 9a18e13ed85aec7b6261919b1fbf92531dd9c2ce SHA-256: 050827e76a4cf864cd1fe059c33666d96a3c03f4c7db3f77c11fea35a5707e88
126 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
  • 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://jacksth.ru/wb?keyword=riddles%20with%20answers%20for%20kids PDF link annotation
    • https://cdn.sqhk.co/tegatiwuwax/JuxgjBg/javofarixow.pdfIn PDF document text
    • https://cdn.sqhk.co/datisafapuv/fxhiMgh/best_live_wallpapers_for_pc_4k.pdfIn PDF document text
    • https://site-1178760.mozfiles.com/files/1178760/word_unscramble_worksheet_maker.pdfIn PDF document text
    • https://site-1171796.mozfiles.com/files/1171796/10_amazing_facts_you_didn_t_know.pdfIn PDF document text
    • https://site-1175273.mozfiles.com/files/1175273/gigezujewoja.pdfIn PDF document text
    • http://zufunepel.iblogger.org/un_enabling_environment_guidelines.pdfIn PDF document text
    • https://cdn.sqhk.co/giganopof/ugcQ7GT/3d_galaxy_live_wallpaper_hd_pro_apk.pdfIn PDF document text
    • https://site-1177349.mozfiles.com/files/1177349/vitamin_shoppe_coupon_code.pdfIn PDF document text
    • https://site-1208698.mozfiles.com/files/1208698/g_d_s_ki_full_form.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://juxudawalugevop.epizy.com/61293520367.pdfIn PDF document text
    • https://s3.amazonaws.com/dopugaxelelema/nenipaxetoj.pdfIn PDF document text
    • https://s3.amazonaws.com/mupukesunobaga/five_ten_guide_tennie_mid_ca_sun.pdfIn PDF document text
    • https://s3.amazonaws.com/vonusirukete/mobewelitijifa.pdfIn PDF document text
    • http://xuvafinuvewabek.epizy.com/decimals_on_the_number_line_worksheet.pdfIn PDF document text
    • http://pebimomedunuzux.epizy.com/castlevania_symphony_of_the_night_bat_form.pdfIn PDF document text
    • http://nasewuji.epizy.com/ripirepud.pdfIn PDF document text
    • http://nefigubisi.epizy.com/98824259926.pdfIn PDF document text
    • http://nugafafekovad.epizy.com/64090352458.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_off0000d8f1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD8F1 5156 bytes
SHA-256: a37f15f08b41e5a9ddcf022507a4ab7fc78f881f821021c2beae67e5d20a08ea
font_01_sfnt_off0000ea89.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEA89 10164 bytes
SHA-256: 1c5bc290f7384c809e3b8243f67f2b0e4e9ce4ddecd9e6259d677116404603df