Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d92d5daddd19a4b…

MALICIOUS

PDF

66.9 KB Created: 2021-02-28 03:45:05 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 41f3f91853420fa82be4e01b500f4d46 SHA-1: 68fd1f1aa60f01ec57dc5084330e02847da21390 SHA-256: 0d92d5daddd19a4bb309b23e0150dc6d3434a94874c980789155d64d54af49c3
184 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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=kidde+nighthawk+instruction+manual In PDF document text
    • http://strapslap.online/zopafupowetetama4ah64.pdfIn PDF document text
    • http://revinulamuxawa.22web.org/date_format_moment_javascript.pdfIn PDF document text
    • https://xezolemi.weebly.com/uploads/1/3/5/3/135324657/2457910.pdfIn PDF document text
    • http://forexgeeks.net/15410815239rgfbv.pdfIn PDF document text
    • https://jevixivuxed.weebly.com/uploads/1/3/4/6/134622771/ketazeduxa.pdfIn PDF document text
    • http://conicppjry.bid/kenafaxowudevonasoloniwig58prh.pdfIn PDF document text
    • http://negozio50sconto.info/reinforcement_vs_punishment_worksheetfmpxj.pdfIn PDF document text
    • https://cdn.sqhk.co/lomasamube/giabLhj/score_hero_hacked_version_apk_download.pdfIn PDF document text
    • http://simkosa.website/rekubaneresawm9dr.pdfIn PDF document text
    • https://cdn.sqhk.co/panazomuv/cjghbFE/48934021381.pdfIn PDF document text
    • https://vudubigudimuw.weebly.com/uploads/1/3/4/0/134016717/1798612.pdfIn PDF document text
    • https://nivavige.weebly.com/uploads/1/3/0/7/130739715/215351.pdfIn PDF document text
    • http://kersita.fun/class_notes_templatecunst.pdfIn PDF document text
    • http://converstarget.ru/six_thinking_hats3yldx.pdfIn PDF document text
    • https://cdn.sqhk.co/xeloxilava/jeeYfgj/mukimonogogi.pdfIn PDF document text
    • https://jaloteke.weebly.com/uploads/1/3/4/0/134096083/6ad81b5edb.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://kunizifafam.epizy.com/worcester_27i_system_boiler.pdfIn PDF document text
    • http://bifakafuwal.rf.gd/83628018905.pdfIn PDF document text
    • https://s3.amazonaws.com/juzinaramip/rosexekalesosamifazawawus.pdfIn PDF document text
    • https://s3.amazonaws.com/tabobujimo/tidekazobi.pdfIn PDF document text
    • https://s3.amazonaws.com/wavunot/federal_guidelines_for_low_income_housing.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_off0000c975.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC975 5476 bytes
SHA-256: 6104e31783a38d99c5daa8878824f232579b669347f244c600c4294d7744fdc7
font_01_sfnt_off0000dbff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBFF 9932 bytes
SHA-256: 9436677017066032bbd1d85bd31bb25b2ae291bfd5875d1bbcdf7fd75d5f15a7

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