Malicious PDF — malware analysis report

Static analysis result for SHA-256 d66f4e67fc822836…

MALICIOUS

PDF

129.2 KB Created: 2022-06-08 03:54:44 +02:00 Authoring application: jamejann (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 908ded9b4e719bc965ec38f0fd7802e0 SHA-1: eb2740341904ab3ea69356cf55f09d1a5ed1076f SHA-256: d66f4e67fc8228363334380238902171084146d49520ec895a4bed89a546e0b5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which advertise cracked or pirated software. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, and 'PDF_CRACKED_SOFTWARE_LURE' specifically identifies the advertisement of cracked software. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further suggests a lure to download content. The embedded URLs likely lead to malicious payloads or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier clean score 0.0160

Heuristics 5

  • 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.
  • PDF link farm advertises cracked/pirated software medium PDF_CRACKED_SOFTWARE_LURE
    PDF contains many clickable links whose targets use cracked-software, keygen, serial-key, or warez vocabulary. These are SEO-spam lure documents that rank for software-piracy searches and route users to fake 'crack' download pages distributing potentially-unwanted programs, adware, or droppers. The PDF itself carries no exploit — the risk is the linked destinations.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 http://evacdir.com/mangula/ZG93bmxvYWR8QmMyTm1OaU5ueDhNVFkxTkRZME16TTFNSHg4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA?decomposing.controvesery.RHVja2llVFYRHV.hymns PDF link annotation
    • https://social.urgclub.com/upload/files/2022/06/cqSL6iqNJCkudIheUE7e_08_1ffe32df4aca09f09e097d94712ad10c_file.pdfIn PDF document text
    • https://2figureout.com/feed-notifier-crack-serial-number-full-torrent-for-windows/In PDF document text
    • http://ballyhouracampervanpark.ie/wp-content/uploads/2022/06/Antenna__Crack_Download_For_PC.pdfIn PDF document text
    • https://fennylaw.com/magic-sprayer-activation-code-download-2022/In PDF document text
    • http://kireeste.com/?p=7465In PDF document text
    • https://socialtak.net/upload/files/2022/06/2WO3CxRcTRiw1jzn4QFe_08_1ffe32df4aca09f09e097d94712ad10c_file.pdfIn PDF document text
    • http://xn--doabertha-m6a.com/?p=6492In PDF document text
    • https://frippo.com/wp-content/uploads/2022/06/Inside_IChing_Crack__Activation_Free_Download_For_Windows.pdfIn PDF document text
    • https://therookeryonline.com/advert/cidianreader-crack-keygen-pc-windows-updated/In PDF document text
    • https://bnbeasy.it/wp-content/uploads/2022/06/ScreenShooter_Crack_Free_For_Windows_Latest_2022.pdfIn PDF document text
    • https://domainmeans.com/wp-content/uploads/2022/06/VCF_vCard_Creator_Software.pdfIn PDF document text
    • http://montehogar.com/?p=9272In PDF document text
    • https://delcohempco.com/2022/06/07/cleverclients-crack-with-license-key-free-download/In PDF document text
    • https://aboe.vet.br/advert/vs-1000r-crack-with-license-key-free-download-april-2022/In PDF document text
    • http://www.antiquavox.it/personal-renamer-crack-with-serial-key-latest-2022/In PDF document text
    • http://op-immobilien.de/?p=883In PDF document text
    • https://hard-times.us/wp-content/uploads/2022/06/SurfCanister.pdfIn PDF document text
    • https://wo.barataa.com/upload/files/2022/06/ql8Y1E2l5w1AmroBAUh8_08_1ffe32df4aca09f09e097d94712ad10c_file.pdfIn PDF document text
    • https://paulinesafrica.org/?p=73177In PDF document text
    • http://ballyhouracampervanpark.ie/wp-content/uploads/2022/06/antenna__crack_download_for_pc.pdfIn PDF document text
    • https://wakelet.com/wake/L_ryUHELl4skr9FI-HhsHIn PDF document text
    • http://www.tcpdf.orgIn 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/xap/1.0/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://www.aiim.org/pdfa/ns/extension/In PDF document text
    • http://www.aiim.org/pdfa/ns/schema#In PDF document text
    • http://www.aiim.org/pdfa/ns/property#In PDF document text
    • http://www.aiim.org/pdfa/ns/id/In PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00002624.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x2624 120140 bytes
SHA-256: a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4