Malicious PDF — malware analysis report

Static analysis result for SHA-256 263c15a48d599bc8…

MALICIOUS

PDF

71.4 KB Created: 2021-02-13 11:46:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: a5cbc9f1be312c6e8dcae9d5a06d671b SHA-1: 8d0d92d011b7483b8d3015f28d6c3397e2047989 SHA-256: 263c15a48d599bc8c41f299b33474c8b8fc6ae9e155bc2ce5d64b0a0facf7122
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://druttle.ru/wix?keyword=osrs+how+to+get+teleport+tabs PDF link annotation
    • https://cdn.sqhk.co/madumubo/bia8hcT/big_shark_little_shark.pdfIn PDF document text
    • http://slimitalia.space/902870699419o1he.pdfIn PDF document text
    • https://nelizebowi.weebly.com/uploads/1/3/4/7/134734992/b3d7f.pdfIn PDF document text
    • http://vlada4.xyz/download_tank_battle_royale_mod_apky01sh.pdfIn PDF document text
    • http://idealslimitaly-official.site/which_phone_has_best_camera_iphone_or_samsungh0c7d.pdfIn PDF document text
    • http://216tilford.com/vadifapofedujoraxinodewuhbwhb.pdfIn PDF document text
    • http://pokemonrivals.online/singular_and_plural_form_of_criteriaucecr.pdfIn PDF document text
    • http://leopolds.space/velawumejetaviloxoo13.pdfIn PDF document text
    • http://mikrotikwizard.com/brush_lettering_practice_sheet72zy7.pdfIn PDF document text
    • http://hdvideo.design/17294986280urxgn.pdfIn PDF document text
    • http://rabekapudi.iblogger.org/31168380003.pdfIn PDF document text
    • http://4gusevshop.space/video_kartun_lucu_full_movied1pec.pdfIn PDF document text
    • http://cardioactiveitalia.site/66076585880xsini.pdfIn PDF document text
    • https://cdn.sqhk.co/mapibeze/rhgsCgm/zaxasegizanapifebuzud.pdfIn PDF document text
    • http://sarkife.site/jomonafuzilawarudasejuzi75fl9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://xifenarubomes.rf.gd/consolidated_balance_sheet_example_uk.pdfIn PDF document text
    • http://webidiwotew.epizy.com/forks_over_knives_movie_worksheet_answer_key.pdfIn PDF document text
    • http://mukapekuruxades.rf.gd/norman_rockwell_biography_worksheet.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_off0000daf0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDAF0 5340 bytes
SHA-256: 42cdce627e8d730ccd7bfddd6ca41ef5c5ea85fba9093a17ca1e849499bf966d
font_01_sfnt_off0000ed25.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xED25 10476 bytes
SHA-256: 3cfa7d49707ec3eb0edb00726b5ad7ef6dedea8d15c21adfe9308aaeedcfc3b8