Malicious PDF — malware analysis report

Static analysis result for SHA-256 11066a7af9eb72b3…

MALICIOUS

PDF

75.1 KB Created: 2021-02-26 07:19:17 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: fadecb22225a48c7bd04040dda25ea00 SHA-1: 14ef3d76540ec6c3fbab0757674e36a222792a78 SHA-256: 11066a7af9eb72b381f35d8080c2c0692cdae5769123cc77bf6436b7ebae3489
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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/award?keyword=how+to+clean+ge+profile+dishwasher+filter PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4450043/normal_5fe17cd720cd5.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4491164/normal_5fd36ca226daf.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4425504/normal_5ff49041971aa.pdfIn PDF document text
    • https://cdn.sqhk.co/lixipadiwel/gggicge/jidisepujubozeji.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4479460/normal_5fdf469bbb924.pdfIn PDF document text
    • http://vukipika.iblogger.org/tozal.pdfIn PDF document text
    • http://topdouche.xyz/swann_dvr8-4575_manual_downloadph9ab.pdfIn PDF document text
    • https://cdn.sqhk.co/zogobadakedu/ggJwagc/packers_preseason_schedule_channel.pdfIn PDF document text
    • https://cdn.sqhk.co/rolileduvof/0ijivYK/bmc_lumber_austin.pdfIn PDF document text
    • https://cdn.sqhk.co/dasisogi/j5iifib/silly_walks_song.pdfIn PDF document text
    • https://cdn.sqhk.co/divoxisig/C8giYjD/spinosaurus_toy_jurassic_park.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://jitimixilu.epizy.com/dozeximivetax.pdfIn PDF document text
    • http://gipebevu.atwebpages.com/how_to_get_the_average_atomic_mass_of_an_element.pdfIn PDF document text
    • http://bujazux.rf.gd/kapufosoratupenuxagikopo.pdfIn PDF document text
    • http://wozimape.onlinewebshop.net/john_deere_9500_combine_settings.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_off0000e9fd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE9FD 5468 bytes
SHA-256: f9edecfc18ce2bf501fe6b940eed1e159152dcc0efe63707bc664b1035497a56
font_01_sfnt_off0000fca4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xFCA4 10240 bytes
SHA-256: 3eea076eccf925672d6ebe49a961fccf7f29da2b544a9470777a72e144579497