Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6f5f9f247ed9ef1…

MALICIOUS

PDF

71.5 KB Created: 2021-02-25 19:47:10 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-15
MD5: 8f3e0cb42a857dbfd025954b0ff768a9 SHA-1: c2da449037dc6204f01efabc27e1e624befb3295 SHA-256: c6f5f9f247ed9ef1a61e2cfe8ffdc7b3e47dce4669ca24960d3b3ecbb5c5150f
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://maypoin.ru/wix?keyword=translating+word+equations+chemistry+worksheet PDF link annotation
    • http://getliterate.online/what_does_rent_stabilization_meanf2xdv.pdfIn PDF document text
    • http://kamikofonem.mygamesonline.org/adobe_acrobat_create_toolbar_acroiefavclient.dll.pdfIn PDF document text
    • http://vnds-v.website/24478863772ge3ho.pdfIn PDF document text
    • https://cdn.sqhk.co/lekaguko/fhaheg1/6350958900.pdfIn PDF document text
    • https://cdn.sqhk.co/zibepidok/dhce5gh/79598025036.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4415326/normal_5fe7508f589eb.pdfIn PDF document text
    • http://fukuzowi.sportsontheweb.net/83708319409.pdfIn PDF document text
    • https://majijajivetik.weebly.com/uploads/1/3/4/2/134265766/9418141.pdfIn PDF document text
    • http://bestita.space/mixidewagewozegimotgmp.pdfIn PDF document text
    • http://tryici.xyz/chiang_rai_tourist_map3bdif.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4410694/normal_5feb6a7717863.pdfIn PDF document text
    • http://viniveba.mywebcommunity.org/hp_elitebook_8570p_not_charging.pdfIn PDF document text
    • http://kkkirrreeee.space/xegejawund03.pdfIn PDF document text
    • https://koturukumofup.weebly.com/uploads/1/3/4/8/134883222/4803065.pdfIn PDF document text
    • https://deriwofapavuz.weebly.com/uploads/1/3/4/3/134311795/dilagogo_vemolukimimize_tutuv.pdfIn PDF document text
    • https://cdn.sqhk.co/lanumakefu/gflbzUI/yoga_108_meaning.pdfIn PDF document text
    • https://vevusivo.weebly.com/uploads/1/3/0/8/130874001/raxilagirer_nuperojufaz_lelir_timobuvatijed.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/nitajosasa/robidom.pdfIn PDF document text
    • https://s3.amazonaws.com/batiku/handing_in_your_notice_template.pdfIn PDF document text
    • https://s3.amazonaws.com/mixanaz/32646424478.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_off0000d955.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD955 5684 bytes
SHA-256: de010b158428c54fdad91f88479632c5661722272732abbfe65f4d5a1005dcbb
font_01_sfnt_off0000ec85.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEC85 10656 bytes
SHA-256: 6d0cdd54f1a6eb1fbdb173b3947d0c888bece66d604fa27be16cb0eedd306b4f