Malicious PDF — malware analysis report

Static analysis result for SHA-256 138220bb95eacd5c…

MALICIOUS

PDF

68.0 KB Created: 2021-02-17 23:08:51 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4dbc9bb95af3bdae17bee488f70a70d2 SHA-1: ab84487efcf399b39cb8418e3c0d4f39d9b5d468 SHA-256: 138220bb95eacd5cceb03cd7575053147cf6281fb718b2a91ca7c9faaf348ea6
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2528dad23a95d95-d2528dad23a95d95-10044376-0
  • 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://baarspo.ru/wix?keyword=suzuki+atv+repair+manuals PDF link annotation
    • http://dubupatixekun.iblogger.org/sen_songs_malayalam.pdfIn PDF document text
    • http://fokojudup.22web.org/noxapidaxuferidifoxamol.pdfIn PDF document text
    • https://cdn.sqhk.co/rinovizifim/0gh4jij/5248764107.pdfIn PDF document text
    • https://cdn.sqhk.co/veletafi/hrjhwhg/9037357873.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4451021/normal_602153c690dd1.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://mogegan.epizy.com/19174500298.pdfIn PDF document text
    • http://xapimiwosusuv.epizy.com/dijijajitivibidofox.pdfIn PDF document text
    • http://lebodevafetag.epizy.com/what_are_all_the_unforgivable_sins.pdfIn PDF document text
    • http://bowuxok.epizy.com/29017803984.pdfIn PDF document text
    • http://solukirakologi.epizy.com/eloccs_approving_official_recertification_guide.pdfIn PDF document text
    • http://fetufebutegiv.rf.gd/new_delhi_railway_station_platform_no_3.pdfIn PDF document text
    • http://fatafebegit.epizy.com/76036103350.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_off0000cff7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCFF7 5240 bytes
SHA-256: f2cdc9ca30673e1eaababeef154bd2e37c15f6d55e9b68258ebbadd39b7a4a18
font_01_sfnt_off0000e1c5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1C5 9972 bytes
SHA-256: 5cf21c9960a12ef6f90c861a70425100186666e355bfde1d42fb736d120f0691