Malicious PDF — malware analysis report

Static analysis result for SHA-256 0e11aef20c4c29b6…

MALICIOUS

PDF

75.0 KB Created: 2021-02-18 04:02:19 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10
MD5: fb438f06d9ee1000bb5fe88ba6a90e60 SHA-1: c5d54bfc6a88b7921d926b88c06ee57e3932139c SHA-256: 0e11aef20c4c29b6474941c74d9ad6ca2264fc7191c3bc6b7f706e34de54c5db
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://leonvi.ru/aws?utm_term=netgear+wndr3700+v2+firmware PDF link annotation
    • http://ukrinsure.com/12015515370lhl1v.pdfIn PDF document text
    • https://kojepogezoxuta.weebly.com/uploads/1/3/4/4/134487575/21df502f.pdfIn PDF document text
    • https://cdn.sqhk.co/zowegifivufo/bDjfIhf/piggy_book_2_release_date_minitoon.pdfIn PDF document text
    • https://cdn.sqhk.co/wijelukifap/jNsifie/ice_cream_cinnamon_rolls_recipe.pdfIn PDF document text
    • https://zubosevofugojat.weebly.com/uploads/1/3/4/3/134307347/volabugule_vosafekuw_komemo.pdfIn PDF document text
    • http://liketime.online/spaceflight_simulator_expansion_pack_apkty8w6.pdfIn PDF document text
    • http://nanolenka.xyz/25824386215mddtr.pdfIn PDF document text
    • https://bikezurikol.weebly.com/uploads/1/3/4/6/134612173/9482265.pdfIn PDF document text
    • http://goproonly.com/2007_chrysler_aspen_navigation_manualqco14.pdfIn PDF document text
    • https://cdn.sqhk.co/safubuguva/ihdghgg/26367624724.pdfIn PDF document text
    • https://zixavuxo.weebly.com/uploads/1/3/1/3/131398386/ab51f3bf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4413223/normal_5fef5e8ee1afe.pdfIn PDF document text
    • http://harkateine.fun/adblock_google_chrome_apkakzrj.pdfIn PDF document text
    • https://tixovokibena.weebly.com/uploads/1/3/4/1/134109053/d5982b.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://negifunowulag.rf.gd/blizzard_stuck_at_initializing.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_off0000e1b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE1B9 5656 bytes
SHA-256: bc029f55fc2479427336feb942e39ce0a100fe0377d535181f955a56e340a8a4
font_01_sfnt_off0000f50f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF50F 12140 bytes
SHA-256: 2479b27958260efe0f4fb3beac3a10b54c26d3faf4033dc0bb15cecefef3884c