Malicious PDF — malware analysis report

Static analysis result for SHA-256 b6cbfc50e6095ca0…

MALICIOUS

PDF

79.3 KB Created: 2022-06-12 02:41:26 +02:00 Authoring application: raffsynt (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 9ce33d2e9bb046f68cc3c2d5dc3e7440 SHA-1: 9e07febcab5c57549433f848205576a98f84d0ae SHA-256: b6cbfc50e6095ca01730d2dd446d24964f3266f146a86ccedf2672f80b2cec5b
64 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files, indicating a link farm for SEO manipulation. One of the primary URLs extracted, http://evacdir.com/hellas/aqualand.evenness?RGljdGlvbmFyeSBPZiBJZGlvbXMgQW5kIFRoZWlyIE9yaWdpbnMgQnkgRmxhdmVsbCBQZGYgRG93bmxvYWQRGl=shedua/fain=&ZG93bmxvYWR8RjRETW5RMlpIeDhNVFkxTkRrNE9URTJNbng4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA=poking, is likely used to distribute malicious content or redirect users to phishing sites. The heuristic 'PDF_SEO_LINK_FARM' strongly suggests this malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.2001

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/hellas/aqualand.evenness?RGljdGlvbmFyeSBPZiBJZGlvbXMgQW5kIFRoZWlyIE9yaWdpbnMgQnkgRmxhdmVsbCBQZGYgRG93bmxvYWQRGl=shedua/fain=&ZG93bmxvYWR8RjRETW5RMlpIeDhNVFkxTkRrNE9URTJNbng4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA=poking
    • https://ourlittlelab.com/wp-content/uploads/2022/06/atlasdeparasitologiahumanaashorihelpdfdescargar.pdf
    • https://skylightbwy.com/wp-content/uploads/2022/06/MissionImpossibleGhostProtocol2011HindiDubbedTOP_FullHDBRRipmkv.pdf
    • https://pteridoportal.org/portal/checklists/checklist.php?clid=19235
    • https://explorerea.com/?p=4548
    • http://www.aydinemlaktrabzon.com/wp-content/uploads/2022/06/neobux_referrals_handy_manager_full_version_11.pdf
    • https://festivaldelamor.org/calibri-body-font-free-download/
    • https://sunuline.com/upload/files/2022/06/xQtZYgjKnYdwokif4Ueg_12_e2d2855c8ed543b9cdfbfb752406d754_file.pdf
    • https://timelessflair.com/wp-content/uploads/2022/06/AutoCAD_LT_2017_32_Bit_Free_Download.pdf
    • https://techstoserve.com/wp-content/uploads/2022/06/ivojame.pdf
    • https://lannews.net/advert/call-of-duty-3-psp-iso-download-4shared/
    • https://gobigup.com/corel-videostudio-pro-x8-keygen-download-22/
    • https://vitinhlevan.com/luu-tru/11902
    • https://sprachennetz.org/advert/saving-brad-the-kennedy-boys-book-5/
    • https://tad-ah.com/wp-content/uploads/2022/06/Download_TOP_FALTU_Movie_In_Hindi_720p.pdf
    • http://www.antiquavox.it/dragon-ball-xenoverse-mods-download/
    • https://biorepo.neonscience.org/portal/checklists/checklist.php?clid=6114
    • https://gardenlocked.com/upload/files/2022/06/GnUi5d9p9SzdvpUBByxr_12_c74fec8545f7b52110cdf965cb1d4900_file.pdf
    • https://ak-asyl-mgh.de/advert/ipvanish-vpn-3-4-4-4-crack/
    • https://www.donemil.com/wp-content/uploads/2022/06/Arabic_Korg_Pa3x_Set_Rar.pdf
    • https://yourtripboy.com/?p=3128
    • 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_002_off00000f16.bin
70003282ec34aefac30b94caee1246840bbab90e19f1422db5c6752a623b1548
decompressed-pdf-stream PDF FlateDecoded stream at offset 0xF16 120244 bytes