Malicious PDF — malware analysis report

Static analysis result for SHA-256 01264181d1054f0a…

MALICIOUS

PDF

75.7 KB Created: 2021-03-02 17:49:24 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-08-25
MD5: e1b25e4f8e1bb647f338393cafb2b579 SHA-1: da507317575ab2eb9d3bb1d6a4d8c78bb9ae54f5 SHA-256: 01264181d1054f0ab72997bcc34f6148a11e0d73addb16325109bec68d1679c2
234 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript T1203 Exploitation for Client Execution

This PDF document functions as a link farm, containing numerous external links to potentially malicious websites. The primary lure appears to be a search result for 'Does gta v work on ps5', which redirects to a URL that includes a 'strik' parameter, suggesting malicious intent. The document's structure and the high number of outbound links, coupled with ML classification and ClamAV detection, strongly indicate it's designed to lead users to malicious content or phishing sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 8

  • 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 contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Payment redirection / bank-detail change lure high SE_PAYMENT_REDIRECT_LURE
    Document describes new or changed bank, wire, ACH, IBAN, SWIFT, or routing instructions — a high-value business-email-compromise pattern
  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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://jottigo.ru/strik?utm_term=does+gta+v+work+on+ps5 PDF link annotation
    • https://cdn.sqhk.co/jarogofef/icggzZD/36121279641.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4425009/normal_601df7ac81c69.pdfIn PDF document text
    • https://fidifeso.weebly.com/uploads/1/3/1/4/131408027/71e58.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4403117/normal_5fda8fe25310c.pdfIn PDF document text
    • http://rotiwopofeze.mywebcommunity.org/girl_scout_brownie_dancer_badge_requirements.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374847/normal_600b8d8f2e6c6.pdfIn PDF document text
    • https://kukanoli.weebly.com/uploads/1/3/4/6/134641169/fawatemifudoko-rumefu-nepijawexulubo.pdfIn PDF document text
    • http://kasaxeko.mypressonline.com/the_return_of_the_king_1980_characters.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4476015/normal_60360458f2340.pdfIn PDF document text
    • http://lozipazom.sportsontheweb.net/43120000457.pdfIn PDF document text
    • https://cdn.sqhk.co/fapiwejagiz/hhcoReL/gravity_cube_click_clock.pdfIn PDF document text
    • https://cdn.sqhk.co/wogefosa/NMOiire/metropcs_phone_number_change.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4448330/normal_5ff831db0455b.pdfIn PDF document text
    • https://cdn.sqhk.co/vefusujix/6lheEbH/change_taskbar_color_windows_10_2004.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://wabiraxo.rf.gd/flexible_duct_installation_guidelines.pdfIn PDF document text
    • http://zukusuvajijip.epizy.com/foziz.pdfIn PDF document text
    • http://wegatanubuguze.rf.gd/secret_love_song_piano_sheet_music.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_off0000e972.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE972 5292 bytes
SHA-256: a9ceb6a4c04ce0a5929e689b6ec1506f27e0321d4c0c90cde96c27ee9c40f83b
font_01_sfnt_off0000fbab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFBAB 11068 bytes
SHA-256: 888b0716211d97649778572ceb66fd2aa6b6fafc9c33521421da085cf1bafa9c