Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc6865f4294a2620…

MALICIOUS

PDF

74.1 KB Created: 2021-02-17 04:44:09 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 1849de3d762b137b86230f3103178fef SHA-1: a41e3e323f360cedf8a259633bd86bd3cfc52faf SHA-256: bc6865f4294a2620c4abf56743124a5940eabc520ff22a2ea43208ba4cfdc51d
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 6

  • 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.
  • 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://jottigo.ru/123?utm_term=tableau+for+dummies+pdf+free PDF link annotation
    • http://topijakalez.22web.org/coordonnes_bancaires_format_iban.pdfIn PDF document text
    • https://cdn.sqhk.co/jegamaxegev/j1iauij/survival_battleground_game_download_apk.pdfIn PDF document text
    • https://sakolepak.weebly.com/uploads/1/3/4/5/134588428/1531012.pdfIn PDF document text
    • https://koxawikala.weebly.com/uploads/1/3/4/6/134643159/5344805.pdfIn PDF document text
    • https://cdn.sqhk.co/domuduxuro/ejdjajh/spectrobes_origins_wiki.pdfIn PDF document text
    • https://cdn.sqhk.co/zetanitanedo/W7RRN6n/84910880711.pdfIn PDF document text
    • http://winnerslm.space/belize_gay_travel_guidexftqh.pdfIn PDF document text
    • https://cdn.sqhk.co/wemerofada/idhhkjf/subway_surfers_endless_run.pdfIn PDF document text
    • https://sivisobimiji.weebly.com/uploads/1/3/4/7/134754783/jusivawojav_sobibidosoweme_rinivix_rodufapexudi.pdfIn PDF document text
    • http://ampinternational.org/safimayx1an.pdfIn PDF document text
    • https://cdn.sqhk.co/kosojilufut/iagcxhf/14826812847.pdfIn PDF document text
    • http://white-x.fun/barasunarakoubrxh.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://ramapenutizawa.epizy.com/ll_bean_maine_guide_shirt.pdfIn PDF document text
    • https://s3.amazonaws.com/pizivurapab/arkansas_franchise_tax_report_2018.pdfIn PDF document text
    • http://zulojazivuvuk.epizy.com/minute_of_meeting_template_excel.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_off0000e4f6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4F6 5276 bytes
SHA-256: de1d31e81ea1d5bd07aa3c0bd56e60a9e10ead9a0e07cedf01a54b1ffb396b07
font_01_sfnt_off0000f6c9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF6C9 10908 bytes
SHA-256: f8e668c253745c70b6200db34527d32e8ff0cedffc35cd19254f4a755e63ba20