Malicious PDF — malware analysis report

Static analysis result for SHA-256 3abe39be98685785…

MALICIOUS

PDF

70.5 KB Created: 2021-03-04 02:56:18 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-25
MD5: 4313424858b5a64e7ac8e48f5c257dd7 SHA-1: af1fd1d24ee7e62d528bf43fde6b1baa7682e971 SHA-256: 3abe39be986857856903f9b70ca659fd843360bd378b701fc283ab9f821f4c60
186 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://kuzutuzo.ru/award?keyword=exploring+psychology+in+modules+11th+edition+myers+%2526+dewall PDF link annotation
    • http://subefimajifulik.22web.org/what_to_take_for_car_inspection.pdfIn PDF document text
    • https://cdn.sqhk.co/fekigimuzib/hajabhe/14790728224.pdfIn PDF document text
    • https://tovijivesigaz.weebly.com/uploads/1/3/5/3/135327805/b51282aed5a6c.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4408323/normal_600a1fd232931.pdfIn PDF document text
    • http://repair-foto.ru/42282067177hmden.pdfIn PDF document text
    • http://eurofamily.pro/6015073368phlj8.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4374986/normal_5fd978204d93f.pdfIn PDF document text
    • http://desajegurake.scienceontheweb.net/how_to_beat_the_labyrinth_botw.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369302/normal_601783721b502.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414172/normal_6028f6399731e.pdfIn PDF document text
    • http://brumbum2.xyz/demonrock_war_of_ages_mod_apk86ijb.pdfIn PDF document text
    • http://itfamily.pro/cen_tech_battery_charger_says_wrong0aqbp.pdfIn PDF document text
    • http://wifunagidoli.mypressonline.com/omnibus_budget_reconciliation_act_of_1989_public_law_101-239.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4392220/normal_603a21bc774ef.pdfIn PDF document text
    • http://samozanyat.info/fundamentals_of_financial_management6f3y2.pdfIn PDF document text
    • https://kebokezuzak.weebly.com/uploads/1/3/5/3/135318209/fefoxak.pdfIn PDF document text
    • https://kafiwixuvaso.weebly.com/uploads/1/3/0/8/130874495/751939.pdfIn PDF document text
    • https://gabinabadebaxir.weebly.com/uploads/1/3/1/4/131408928/bazajifunoveg.pdfIn PDF document text
    • https://cdn.sqhk.co/kizafizutuw/meImiej/salom.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_off0000d6a3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD6A3 5456 bytes
SHA-256: 69c55b389baab5375100118b9404be1f33a349c3e98778396488e3a875237a28
font_01_sfnt_off0000e91a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE91A 10312 bytes
SHA-256: a98cb095d9f3268bb491b3adfa34207fb8371c58ece8e0ce7a1d93626150aafc

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