Malicious PDF — malware analysis report

Static analysis result for SHA-256 cafa3a67c4bd4562…

MALICIOUS

PDF

124.7 KB Created: 2022-06-12 20:53:57 +02:00 Authoring application: garbbett (via PDF Master 1.0.1) First seen: 2022-07-15
MD5: 25d353ed9c72be50f79dd3a71e597b30 SHA-1: 21e6e389fec7757118f11e2ec17080e4f3997a7e SHA-256: cafa3a67c4bd4562caab292a50abd0b54c825e1c01bf2c3faaa2514afad0ec2d
104 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDFs, suggesting a link farm designed to distribute malicious content. The heuristic 'SE_PASSWORD_ARCHIVE_LURE' indicates that the document likely instructs users to provide a password for an archive, a common tactic to bypass security filters. The presence of numerous SEO-optimized PDF links further supports the conclusion that this document is part of a distribution campaign.

Machine Learning

  • Nyx PDF Classifier clean score 0.0284

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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/goad/aurelia/broomstick/RW5nbGlzaCBJcyBFYXN5IENoZXRhbmFuZCBTaW5naCBCb29rIFBkZgRW5&civic/shaya/ZG93bmxvYWR8YmEwYm13eWJYeDhNVFkxTkRrNE9URTJNbng4TWpVM05IeDhLRTBwSUhKbFlXUXRZbXh2WnlCYlJtRnpkQ0JIUlU1ZA&sportground.citrin
    • http://babussalam.id/?p=8386
    • http://template-education.com/?p=4304
    • https://demoforextrading.com/wp-content/uploads/2022/06/password_simcity_5_keygen_txt_stock.pdf
    • https://darblo.com/wp-content/uploads/2022/06/Bmw_Diagnostic_Head_Emulator_V12.pdf
    • https://skatesquad.com/upload/files/2022/06/MW3J1sYhW7g3cJgOwTkz_12_bae52bb2740ff727485c5bb20ce4048b_file.pdf
    • https://arabistgroup.com/wp-content/uploads/2022/06/davored.pdf
    • http://www.kotakenterprise.com/wp-content/uploads/2022/06/Vladimir_Putin_Style_LINK_Free_Download.pdf
    • https://rko-broker.ru/2022/06/12/email-hacker-pro-v346-activation-code-full/
    • https://asuperlist.com/wp-content/uploads/2022/06/Conuter_Strike_Break_Through_Edition_Remake_23_CS_Xtreme_Gol.pdf
    • https://tecnoviolone.com/wp-content/uploads/2022/06/brh_devanagari_rn_fontrar.pdf
    • https://ebs.co.zw/advert/ivt-bluesoleil-10-0-496-1-multilingual-fix-sadeempc-zip-serial-key-keygen/
    • https://b-labafrica.net/2011-true-cafe-5-1-crack-hot/
    • http://bookmanufacturers.org/karaoke-5-42-7
    • https://texvasa.com/wp-content/uploads/2022/06/Wp_Menu_Cart_Pro_Nulled_13.pdf
    • http://www.medvedy.cz/hd-online-player-frozen-2-full-movie-hd-torrent-free/
    • https://dolneoresany.fara.sk/advert/digidna-imazing-2-5-4-crack-with-activation-code-patched/
    • http://yotop.ru/2022/06/12/shri-guru-charitra-in-marathi-pdf-free-free-18/
    • https://gitess.com/wp-content/uploads/2022/06/Buku_Bahasa_Jawa_Kelas_4_Sd_Bse_35.pdf
    • https://yaapoo.com/upload/files/2022/06/OwDUYGzX7kVByxNHWz5U_12_bae52bb2740ff727485c5bb20ce4048b_file.pdf
    • https://moonrivernursingcareers.com/wp-content/uploads/2022/06/maimany.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_003_off00001238.bin
a217f12862e0ff75203bdd4136ca0d68471050be46bb09aed5306898926ffdd4		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x1238 120140 bytes

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