Malicious PDF — malware analysis report

Static analysis result for SHA-256 c56c3d35194c7cd0…

MALICIOUS

PDF

137.9 KB Created: 2022-07-04 05:57:54 +00:00 Authoring application: gillkri (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 43e3df19b213228962c9a92872e4b110 SHA-1: 7f74324ec122d21d28f0118addbf89326cc8d4ce SHA-256: c56c3d35194c7cd07412fcd218ceb46f6c901cd11c342acc108f4b8b6ee11408
104 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified as a link farm, with the primary goal of directing users to potentially malicious content. One of the extracted URLs, http://bestsmartfind.com/accesss/RVNDIEFkUG9zdGVyRVN.elwell.emigration/heartbroken/camus/oxygenation/ZG93bmxvYWR8VUo2T0hOd2NueDhNVFkxTmpnNU1qTTFNbng4TWpVNE4zeDhLRTBwSUVobGNtOXJkU0JiUm1GemRDQkhSVTVk/, is flagged as a suspicious external URI. The presence of a 'LOLBin token sequence' further suggests an attempt to disguise or facilitate the execution of malicious commands.

Machine Learning

  • Nyx PDF Classifier clean score 0.0077

Heuristics 4

  • 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.
  • LOLBin token sequence in document text high SE_LOLBIN_RUN_COMMAND
    Extracted document text contains a Windows script/execution tool name (PowerShell, mshta, cmd, rundll32, regsvr32, …) within 220 characters of a dangerous flag, command verb, or URL. This is a visible 'run this' instruction in HTML/PDF/RTF lure bodies, or — in macro-laden Office files — the macro's own string-pool entries appearing adjacent in extracted text.
  • 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://bestsmartfind.com/accesss/RVNDIEFkUG9zdGVyRVN.elwell.emigration/heartbroken/camus/oxygenation/ZG93bmxvYWR8VUo2T0hOd2NueDhNVFkxTmpnNU1qTTFNbng4TWpVNE4zeDhLRTBwSUVobGNtOXJkU0JiUm1GemRDQkhSVTVk/
    • https://quiet-citadel-00086.herokuapp.com/harkhar.pdf
    • https://www.twp.ferguson.pa.us/sites/g/files/vyhlif576/f/styles/news_image_teaser/public/news/pages_from_bos_agenda_packet_05-16-2022_with_links.pdf
    • https://hard-times.us/wp-content/uploads/2022/07/Altarsoft_PDF_Converter__WinMac.pdf
    • https://polar-waters-33886.herokuapp.com/Animation_Cursor_ActiveX.pdf
    • https://gsmile.app/upload/files/2022/07/wdNchRSmjAgPa9b7mLkO_04_16b7ec6487296fc0453071b3f596074f_file.pdf
    • https://unmown.com/upload/files/2022/07/y86yIKfiCsCQ3GPCoTq7_04_834e106af69e080a4dd8360c02f8077f_file.pdf
    • https://www.pinio.eu/wp-content/uploads//2022/07/pnggauntlet.pdf
    • https://nb-gallery.com/powercmd-activator-free-download-pc-windows-april-2022/
    • https://peaceful-taiga-14961.herokuapp.com/renjar.pdf
    • https://www.kultur-digital.com/wp-content/uploads/2022/07/Photo_Web_Album.pdf
    • https://www.raven-guard.info/wp-content/uploads/2022/07/GeSoLe__Crack___Free_License_Key_Download_Updated_2022.pdf
    • https://dry-reef-61660.herokuapp.com/ocetale.pdf
    • https://ilsignoredicampagna.it/wp-content/uploads/2022/07/kershar.pdf
    • https://thehomeofheroes.org/kids-colouring-book-crack-mac-win-latest-2022/
    • https://ssmecanics.com/crawl-multiple-sites-looking-for-links-software-crack-free-registration-code-free-download-3264bit-latest/
    • http://blackbeargoaly.com/?p=13324
    • http://www.nzangoartistresidency.com/?p=23669
    • https://logisticseek.com/wp-content/uploads/2022/07/jSimpleX.pdf
    • https://coletandovidas.org/wp-content/uploads/2022/07/SiteInFile_Compiler_Crack__Download.pdf
    • https://holytrinitybridgeport.org/advert/oracle-mysql-crack-incl-product-key/
    • 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/

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