Malicious PDF — malware analysis report

Static analysis result for SHA-256 c19fe52195cb11e1…

MALICIOUS

PDF

67.7 KB Created: 2021-03-03 08:43:28 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 91c27ef5fd6f8b7aacbe37eeed0ffbfe SHA-1: b6e8d7b9571dd10870c73901d3b837843c9930b3 SHA-256: c19fe52195cb11e131e4af8a1d78d6eb39c95729f6418a607bef107eae61f56d
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://dugedepap.ru/wix?keyword=apex+geometry+semester+1+answers PDF link annotation
    • https://static.s123-cdn-static.com/uploads/4420592/normal_600646ceb2896.pdfIn PDF document text
    • https://bomejafir.weebly.com/uploads/1/3/4/7/134725936/d3b2921ecdf76.pdfIn PDF document text
    • http://deutschebank-meine.com/flight_club_reviews_manchesterwlq7v.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4447263/normal_5fe9cf9ec4823.pdfIn PDF document text
    • http://chestlune.online/velodrome_track_material6k8mj.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4485589/normal_5fe72c415bc41.pdfIn PDF document text
    • https://cdn.sqhk.co/wularumijif/heShejf/thorax_anatomy_questions.pdfIn PDF document text
    • http://boxberry-24.cc/carsguide_toyota_kluger_reviewxld19.pdfIn PDF document text
    • https://cdn.sqhk.co/seponidozit/jHgjghi/android_ludo_3d_multiplayer.pdfIn PDF document text
    • https://cdn.sqhk.co/pugirunosamo/jhtfAAP/stickman_gunner_hack.pdfIn PDF document text
    • http://fruitslope.online/telecharger_whatsapp_2018_apk_gratuit_pour_androidthtc1.pdfIn PDF document text
    • https://cdn.sqhk.co/purilusevike/ioO6Vgh/35452625067.pdfIn PDF document text
    • https://cdn.sqhk.co/wememiguw/XghfmBg/ginikokogufofisanopazor.pdfIn PDF document text
    • https://puzejiwitamino.weebly.com/uploads/1/3/1/4/131453698/6049577.pdfIn PDF document text
    • https://dunogijejuj.weebly.com/uploads/1/3/0/8/130813547/gibikuboti.pdfIn PDF document text
    • https://cdn.sqhk.co/teforoke/cjbjgHi/80933716299.pdfIn PDF document text
    • https://fanaraligo.weebly.com/uploads/1/3/4/6/134620410/zekisiv.pdfIn PDF document text
    • https://vakumijajuxos.weebly.com/uploads/1/3/4/4/134465568/zevatajawuf.pdfIn PDF document text
    • https://cdn.sqhk.co/pimidima/tiejbia/gelovapuxanapigud.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn 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_off0000cd02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xCD02 5412 bytes
SHA-256: caa22f917196afbbf7a205d0c5be4a7b8ebadd6eb97bc728ea0b204d289fc4c7
font_01_sfnt_off0000df76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDF76 10088 bytes
SHA-256: a53ecaf130b733cf8e37f1f913cf16bb725cf47cc465c43a094639fd40a13ecb