Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ade0edc811e71b3…

MALICIOUS

PDF

67.5 KB Created: 2021-02-14 12:59:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: b43ede2ba74014e766cb0a852c7e01e9 SHA-1: 065ff2594a517c272638c0e8e5a48193da9aae27 SHA-256: 4ade0edc811e71b316ffe4bab5f54da377381f6381f455e0b439f29ce0a9895c
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://seumenha.ru/wb?keyword=wordscapes%20answers%20level%201442 PDF link annotation
    • http://bigonetudukori.iblogger.org/dungeons_and_dragons_board_game_character_sheet.pdfIn PDF document text
    • https://xivunububan.weebly.com/uploads/1/3/0/9/130969166/zedegajuvepi-tiwubogejovam.pdfIn PDF document text
    • http://the-glow.ru/rusa_altn_kitap02dcx.pdfIn PDF document text
    • http://italy50wow.pro/goximalokarisegupezolidoibvhx.pdfIn PDF document text
    • http://cyberghost.store/20293999558nqqak.pdfIn PDF document text
    • https://pinobuni.weebly.com/uploads/1/3/0/9/130969003/bizodura.pdfIn PDF document text
    • https://nojilanoxejajej.weebly.com/uploads/1/3/4/8/134856497/3526787.pdfIn PDF document text
    • https://tawusizigegik.weebly.com/uploads/1/3/3/9/133997505/3e26f4c4a45.pdfIn PDF document text
    • http://ndfnasg.xyz/256735067408cgxw.pdfIn PDF document text
    • https://cdn.sqhk.co/jabuvilir/0D1LEjf/virtual_town_unlimited_money_ios.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/bejikefowu/bodum_bistro_electric_burr_coffee_grinder_manual.pdfIn PDF document text
    • http://xesesopid.rf.gd/analog_to_digital_converter_nptel.pdfIn PDF document text
    • http://retuguru.epizy.com/32911066112.pdfIn PDF document text
    • http://mutifitiwexo.epizy.com/passe_compose_and_imparfait_exercises_with_answers.pdfIn PDF document text
    • https://s3.amazonaws.com/solonebosop/kemiwugumidukozedatagokun.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_off0000ca7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCA7E 5504 bytes
SHA-256: 1ebd3154f4657c9a8c7b76ed73c4cfabaf132cff4038083514774c4272bc5922
font_01_sfnt_off0000dd6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDD6E 10516 bytes
SHA-256: 82af1a7e579aeeda4d24cb94938b6aed5d9f60d82c3fd8c3e976e4a596307044