Malicious PDF — malware analysis report

Static analysis result for SHA-256 9e65b6d80b97c523…

MALICIOUS

PDF

83.3 KB Created: 2021-02-27 16:31:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-04-10
MD5: 46431cd9fbd78d973b91e192717fd83f SHA-1: b1ece8b5e06388ec1066dc95a19135b1581a6186 SHA-256: 9e65b6d80b97c523e975f8272fbb7f8d732f1c0b1414683a94d586bf755f37c6
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://zajinet.ru/123?utm_term=what+are+the+major+games+in+physical+education PDF link annotation
    • https://cdn.sqhk.co/bugolajoxodu/jcZ7Vhf/cat_simulator_mod_apk_2018.pdfIn PDF document text
    • https://lutovadefok.weebly.com/uploads/1/3/3/9/133997447/38be05b3.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4489583/normal_600e022c8c204.pdfIn PDF document text
    • https://reponobokuwe.weebly.com/uploads/1/3/5/4/135401207/moxaz.pdfIn PDF document text
    • http://bcpzonasegurape2-viabcp.com/sodetedi3ubau.pdfIn PDF document text
    • http://begetus11ppz.xyz/how_to_make_your_own_vr_headset42jbt.pdfIn PDF document text
    • https://tanibabinilez.weebly.com/uploads/1/3/4/0/134018029/f2b207df5fb6.pdfIn PDF document text
    • http://leopards.space/72217147496zlofe.pdfIn PDF document text
    • http://heliusdesign.ru/el_lazarillo_de_tormes_traducido_al_castellano_modernory4nn.pdfIn PDF document text
    • https://jeporifitev.weebly.com/uploads/1/3/4/2/134265357/didofivazo_zudazo_junuzidosi.pdfIn PDF document text
    • https://wixuzezokanozav.weebly.com/uploads/1/3/4/6/134663812/fezupejawusirokete.pdfIn PDF document text
    • http://myluckybet.xyz/rolagetoroxopezibinikobafgu1e0.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4427268/normal_601ba1f9507ff.pdfIn PDF document text
    • https://terekutididir.weebly.com/uploads/1/3/0/9/130969195/7948946.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4447089/normal_5ffaa16012f0c.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_off000108cc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x108CC 5680 bytes
SHA-256: a05a128d1dc81b08acd5eef22064d933b6cb093ee10beb673928907a1b07964b
font_01_sfnt_off00011c0a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x11C0A 10816 bytes
SHA-256: ef76f402b3c9ecb8c9053a0470fcda883aecaf88638688011e4a3941f293db8b