Malicious PDF — malware analysis report

Static analysis result for SHA-256 88389700854a1dab…

MALICIOUS

PDF

71.8 KB Created: 2021-03-01 20:28:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: caa2ee2e05e35c2f88993fb3e9cf429a SHA-1: 709689470fd45443fab1f2d1438026ef004b5ca6 SHA-256: 88389700854a1dab747cdf84bbca356c3b5e1e8dfffeeabb938d547fe4328ff8
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

Heuristics 5

  • 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 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://jumiwimov.ru/award?keyword=total+quality+management+definition+ppt PDF link annotation
    • http://vorakumezaxof.mygamesonline.org/fovafumeleja.pdfIn PDF document text
    • https://cdn.sqhk.co/lojosewude/ghgcHf2/space_invaders_game_online_classic.pdfIn PDF document text
    • https://cdn.sqhk.co/zogowefu/poiicig/viveroribege.pdfIn PDF document text
    • https://cdn.sqhk.co/dutedape/jaIOkN6/hachi_hachi_loves_park.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4487662/normal_6018133120b92.pdfIn PDF document text
    • http://paselon.getenjoyment.net/87834674611.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4368977/normal_5ff685b4811b8.pdfIn PDF document text
    • http://nigavereke.mygamesonline.org/95460714927.pdfIn PDF document text
    • http://zenajok.medianewsonline.com/python_setuptools_setup_arguments.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/fotojipifuzitul/lekedagerofulotulosegaxa.pdfIn PDF document text
    • https://s3.amazonaws.com/divexikav/ford_escape_2018_reviews_consumer_reports.pdfIn PDF document text
    • http://figuwegexode.rf.gd/caisse_de_depot_quebec_annual_report.pdfIn PDF document text
    • https://s3.amazonaws.com/dozuga/86991410305.pdfIn PDF document text
    • http://gajopule.myartsonline.com/daniel_goleman_inteligencia_emocional_cita_apa.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_off0000ddb1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDDB1 5264 bytes
SHA-256: d4b9783b4bd6ff70f8418744b56101453a8aa8e09f3b4946fc3ea51c59a83fd0
font_01_sfnt_off0000ef93.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF93 10200 bytes
SHA-256: 503b92997efe7c31186890eacd2659a48a9655174a8a1adc76fc29003e9641a5