Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6cab45ca5441787…

MALICIOUS

PDF

72.5 KB Created: 2021-02-23 01:05:56 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 4d1e95c4d86d643e11472cfa3d3c5609 SHA-1: fc3c0a177165defc459e4248c84fc199264d5e24 SHA-256: c6cab45ca5441787149edf0b8cd4aae19d20ea94590a90ff06253bfc29a5d950
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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
  • 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/wix?keyword=neuroscience+fundamentals+for+rehabilitation+pdf+free PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4369142/normal_5fd667bd1e1cd.pdfIn PDF document text
    • http://liginuj.22web.org/71531070064.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4496824/normal_60343774e3fc0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383801/normal_5fda7625efceb.pdfIn PDF document text
    • https://cdn.sqhk.co/tojemapimibo/yjggyUG/cash_jet_personal_loan_app.pdfIn PDF document text
    • https://cdn.sqhk.co/vuluzazogur/xgcjgHb/mastercraft_multicraft_crafting_building_2020.pdfIn PDF document text
    • https://lumodafudewose.weebly.com/uploads/1/3/4/4/134480169/nojib-merumanudasuj-waluj.pdfIn PDF document text
    • https://wezawemexa.weebly.com/uploads/1/3/1/4/131410399/wowexojotijigek-sasimewiwukigag-vogol-dabod.pdfIn PDF document text
    • https://nesefutuderixu.weebly.com/uploads/1/3/2/7/132740375/sajosapebopoxum-lumitu-govorarerafeno.pdfIn PDF document text
    • https://cdn.sqhk.co/liguvikozo/jgnBvSQ/strike_fortress_box_mod_apk_an1.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4495691/normal_5fd3372f4d1c7.pdfIn PDF document text
    • http://mobokem.iblogger.org/nigerian_praise_and_worship_songs_lyrics.pdfIn PDF document text
    • http://xuvivok.22web.org/50435075311.pdfIn PDF document text
    • https://pidowiwosuzaji.weebly.com/uploads/1/3/0/9/130969191/ludemu.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4530171/normal_6006962be80d2.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/jhjfEXQ/cartoon_wars_blade_mod_apk_revdl.pdfIn PDF document text
    • http://zazerure.22web.org/arduino_mega_schematic.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://katevafitaga.epizy.com/numage.pdfIn PDF document text
    • http://xewaxal.epizy.com/broken_but_beautiful_instrumental_ringtone.pdfIn PDF document text
    • http://letituxis.epizy.com/2019_jeep_grand_cherokee_trailhawk_owners_manual.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_off0000dbe2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDBE2 5504 bytes
SHA-256: 3a4202830aef9b60edc4377e564797129a3c35961fe18c29b6e6c93b328306ac
font_01_sfnt_off0000ee6d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE6D 10604 bytes
SHA-256: b3c0a0bba7cd25145e917f251552f418a7dc56682e23118b297be7e83f76274b

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