Malicious PDF — malware analysis report

Static analysis result for SHA-256 dd7f4decb182eb4a…

MALICIOUS

PDF

76.3 KB Created: 2020-12-26 13:40:59 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-03-01
MD5: 6d4e660fe09649bd840374fca58ae9d8 SHA-1: facd92d1bb36f977168572079d2cfd91312ed0be SHA-256: dd7f4decb182eb4ac35c77b9c08c1f8bc125f356edaf7acea6e947f29a94efce
156 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
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
    Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
  • 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://traffnew.ru/wb?keyword=microsoft%20teams%20for%20mac PDF link annotation
    • https://cdn.sqhk.co/titipubaduw/Y1JNie9/globe_at_home_app_for_laptop_download.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4380682/normal_5fa2498472c82.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4387037/normal_5fa1dbf6e60c6.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4449996/normal_5fb41d81b4509.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://uploads.strikinglycdn.com/files/a898dbc2-db8f-4918-a742-d7b93c33dcc0/wikekaveju.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/2332f0b8-6731-4a16-9718-781c4a7c0d25/zazimalapajozag.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/802e1c7b-f9ca-411d-ab6c-70947d0d18a3/addams_family_jr_musical_script.pdfIn PDF document text
    • https://s3.amazonaws.com/genijusemu/dixamavesa.pdfIn PDF document text
    • https://s3.amazonaws.com/donarepemi/zikujusugazan.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b392e651-a8a8-41af-b2eb-f2eefac20a95/tojusikevaxo.pdfIn PDF document text
    • https://s3.amazonaws.com/setaxilitozuko/airtel_tv_app_apk_latest_version.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/958db75c-4b12-46a2-aeba-5899d5e39a98/feloguduperetomizidadu.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3173d562-89b9-4d5c-b563-1d68d4a4f8a6/lee_county_nc_school_calendar_2018-19.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/483f32a6-0ff4-4b7d-991d-59b93215b970/descargar_divi_dead_para_psp_espaol.pdfIn PDF document text
    • https://s3.amazonaws.com/ditiruz/42503800124.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_off0000f1e6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xF1E6 5000 bytes
SHA-256: cf0d974c719e76924192d5afdcdfc3b7e837c9188bb809e85c2c35a15f18fb79
font_01_sfnt_off000102e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x102E1 9924 bytes
SHA-256: 919178a093f5d75570b4bce606352fda467901843ea9d2e9187a2dbc0b0caba1

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