Malicious PDF — malware analysis report

Static analysis result for SHA-256 efc716efb9a65465…

MALICIOUS

PDF

74.1 KB Created: 2021-02-27 20:39:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: d0935873e40c8a03b241cdf07e9ec8ef SHA-1: 08774c929c52245d93e9fa714d7f32bad6825e14 SHA-256: efc716efb9a654655e841f4a46f098cc8d6135a4c18a4cc599397405d378f724
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://zajinet.ru/wix?keyword=shadow+of+the+tomb+raider+xbox+one+bundle PDF link annotation
    • http://sbrf.link/what_happened_in_1900_to_1910ie3dy.pdfIn PDF document text
    • https://cdn.sqhk.co/wakivunet/hcjaChc/gun_shoot_war.pdfIn PDF document text
    • http://complect-tech.ru/cinema_guide_qatarylmiz.pdfIn PDF document text
    • http://soldonlittleton.com/66787695867sg6ax.pdfIn PDF document text
    • http://yourdesk.website/naberojemadimudatepuvila9atma.pdfIn PDF document text
    • http://evromotors.net/310207609102s6mm.pdfIn PDF document text
    • https://cdn.sqhk.co/bitaxukezor/1Shg4cS/ludo_star_apkpure_2019.pdfIn PDF document text
    • https://cdn.sqhk.co/vibisidumes/OXjghi9/repulsed_antonym_meaning.pdfIn PDF document text
    • https://cdn.sqhk.co/wirowanorax/dC4aQgf/92426947139.pdfIn PDF document text
    • https://cdn.sqhk.co/takularozo/aDhaijF/zoxutif.pdfIn PDF document text
    • http://mosquito.codes/16091915850jg1il.pdfIn PDF document text
    • https://cdn.sqhk.co/wuzosiboweja/Tzqhkib/32064297310.pdfIn PDF document text
    • https://cdn.sqhk.co/vumulevezuf/cuTigRc/cisco_anyconnect_vip_access_login_failed.pdfIn PDF document text
    • http://bottlechainworld.com/super_fast_go_kart_for_sale4nxhz.pdfIn PDF document text
    • http://btsworld.org/viniwitifibewolirud10mr0.pdfIn PDF document text
    • https://cdn.sqhk.co/nuvaratuji/jhjarge/nupobosopatul.pdfIn PDF document text
    • http://sethel.xyz/wusolukh5tq7.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://gonurorirezode.epizy.com/jevodifegujig.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_off0000e407.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE407 5372 bytes
SHA-256: 92f6c2e3ff4338db0857e890cdf374423cbe88426f2424dfc25ef4e3786ee2e2
font_01_sfnt_off0000f639.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF639 10856 bytes
SHA-256: cdbc5a19507f4b5d9de9bf3190d86cd202dd3fc761b000ad3932cf039e3fc67f