Malicious PDF — malware analysis report

Static analysis result for SHA-256 ff889d95766c6dc7…

MALICIOUS

PDF

65.6 KB Created: 2021-02-27 22:36:32 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: e41a4d2509b6dece08cb711f440fa652 SHA-1: 4bbce20ac5c6c29d5f12e0b1a3a9ff48d9e12e49 SHA-256: ff889d95766c6dc74109b870ec59ad21b4a4caa3948a6eabad5dda7f38b9e0ab
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://resalured.ru/award?keyword=harman+kardon+avr+1700+manual+espa%25C3%25B1ol PDF link annotation
    • http://bemelegevew.22web.org/bahubali_2_tamil_video_songs_starmusiq.pdfIn PDF document text
    • http://duwasedate.iblogger.org/33243999197.pdfIn PDF document text
    • http://obmenkalnr.online/windows_10_pro_free_download_usb_bootable_software2xnqd.pdfIn PDF document text
    • http://bbcua.site/nipisuvohu5yz.pdfIn PDF document text
    • https://cdn.sqhk.co/wujakegu/cBHhcy5/little_fairy_dress_up_game.pdfIn PDF document text
    • http://zalavsky.ru/223755269088emsn.pdfIn PDF document text
    • https://cdn.sqhk.co/kizusuvut/hgQgjhe/geometry_dash_world_full_apk_hack.pdfIn PDF document text
    • https://cdn.sqhk.co/lafuwexale/4d6Sa2e/xutikijapavujek.pdfIn PDF document text
    • https://cdn.sqhk.co/dabeluza/jhgibjb/kadenuzonajuzatilino.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387929/normal_6016814149688.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4478933/normal_601da0ec56ba7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4383680/normal_602fdf9edd4ef.pdfIn PDF document text
    • http://befigter.xyz/perodirofuduxajujenexaroa5g.pdfIn PDF document text
    • https://cdn.sqhk.co/dujagazatad/kLJkgcK/jupoxerukofalirat.pdfIn PDF document text
    • http://copyrightsupporteds.com/buy_100_cotton_bed_sheets_onlinemy2c3.pdfIn PDF document text
    • http://brumbum6.xyz/54699382394cc5y9.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mevinuvomiti.epizy.com/descargar_musica_de_antony_santos_antologia_de_caricias.pdfIn PDF document text
    • http://ranevumovadul.rf.gd/miller_trailblazer_251_weight.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_off0000c24b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xC24B 5676 bytes
SHA-256: adf5db34a617fa3f44972d57b67f4ef1a5a7ce58f7533a6eaaf80a2a4bf7aca5
font_01_sfnt_off0000d54e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD54E 9928 bytes
SHA-256: e55a3eaa6f2cc8bf7ada597816b8a2680922a024e844c3c5c176ee2d849e5766