Malicious PDF — malware analysis report

Static analysis result for SHA-256 47916a4dcf264a5f…

MALICIOUS

PDF

125.9 KB Created: 2022-06-12 02:55:42 +02:00 Authoring application: laudefe (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 2bf6b72ac7ebe0bec772d88505653160 SHA-1: ba1abba62c92982d10729532e6e6eda9129e2147 SHA-256: 47916a4dcf264a5f8e02f9fb85e42ded1893458f18535730189c8f8851d8e511
64 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 Malicious File T1059.001 PowerShell

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic, which is a common technique for SEO spam and malware distribution. The embedded URLs, such as http://evacdir.com/challiner/..., likely serve as entry points to malicious content or phishing sites. No scripts were extracted from this sample, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier clean score 0.0169

Heuristics 3

  • 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.
  • 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/challiner/U2hhdW4gVGhlIFNoZWVwIFNlYXNvbiAzIDcyMHAgRG93bmxvYWQgTW92aWVzU2h/ZG93bmxvYWR8Vk4wTTJGb2JYeDhNVFkxTkRrNE9URTJNbng4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA?crystallized/junction=financially
    • https://selam.et/upload/files/2022/06/ejpolVkaYttPEbtn95Bx_12_84dec6f6c6f998d6f5c962fec49d173e_file.pdf
    • https://battlefinity.com/upload/files/2022/06/NW8nm5REGPkGgG6XUzeN_12_84dec6f6c6f998d6f5c962fec49d173e_file.pdf
    • http://www.milanomia2.com/wp-content/uploads/2022/06/elibroo.pdf
    • https://pteridoportal.org/portal/checklists/checklist.php?clid=19326
    • https://evahno.com/upload/files/2022/06/2en2Ly2tSQbemENfEMYO_12_84dec6f6c6f998d6f5c962fec49d173e_file.pdf
    • https://shanajames.com/2022/06/12/nude-girls-themes-for-windows-7/
    • https://6v9x.com/riotcivilunrestfreedownload/
    • https://gembeltraveller.com/wp-content/uploads/2022/06/Brc_Sequent_24_My07_Software_13_TOP.pdf
    • https://dbspecialtyservices.org/wp-content/uploads/2022/06/GameDownload_PUBG_MOBILE_100103_105727123exe_2021.pdf
    • https://www.riobrasilword.com/wp-content/uploads/2022/06/Essilor_Lens_Price_List.pdf
    • http://thanhphocanho.com/?p=46882
    • https://natepute.com/advert/forza-motorsport-7-ultimate-edition-pc-game-multi15-free-download-elamigos-2/
    • https://scappy.bmde-labs.com/upload/files/2022/06/Hiq7LuB5633q5gzAHfqv_12_84dec6f6c6f998d6f5c962fec49d173e_file.pdf
    • http://www.vxc.pl/?p=16975
    • https://www.seacliffapartments.com/wp-content/uploads/2022/06/Copytrans_Contacts_Full_Portable.pdf
    • https://dilats.com/wp-content/uploads/2022/06/solucionariodescargagratiscalculovectorialpitaruiz.pdf
    • https://wp.gymbruneck.info/advert/hd-online-player-kamasutra-3d-full-movie-hd-__link__-download-2/
    • https://battlefinity.com/upload/files/2022/06/FFNDSSIhJLv6x3fvTcfN_12_84dec6f6c6f998d6f5c962fec49d173e_file.pdf
    • https://buycannabisstocksinvestments.com/wp-content/uploads/2022/06/doneil.pdf
    • https://our-study.com/upload/files/2022/06/elhVMA66omp1RXz3qOgg_12_4b89fc81fbfadd56fc1e2d56cd2addae_file.pdf
    • http://www.tcpdf.org
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00001592.bin
a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1592 120140 bytes