Malicious PDF — malware analysis report

Static analysis result for SHA-256 97beee6f9e33cabd…

MALICIOUS

PDF

38.4 KB Created: 2021-06-28 21:42:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 7db8d8731722f60b700253dc72fc1b4a SHA-1: 9c08b0b406d4463b92553a20e7f658a83a97b129 SHA-256: 97beee6f9e33cabd523686d2d929b4e1fb078b564f018cb5b73d5c2b87f2d2ca
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains multiple embedded URLs and a call-to-action phrase, impersonating Facebook to lure users into clicking on links related to free game hacks and currency. The ML classifier strongly flagged this PDF as malicious, and the presence of brand impersonation for credential phishing further supports a malicious intent. The document likely serves as a lure to download a second-stage payload or harvest credentials.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

Heuristics 4

  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: http://netcdn.co/app/431946152/free-online-games-to-play-now-roblox-game-hack.
  • 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://netcdn.co/app/431946152/free-online-games-to-play-now-roblox-game-hack PDF link annotation
    • http://elearning.mysadam.info/__statics/gudangsoal/files/coin-master-free-snacks-link_GM406889139.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/accounts-with-free-robux_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-roblox-apk_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/how-to-get-free-robux-without-email_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-free-spin-daily-bonus_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/free-robux-master_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/robux-website_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://elearning.mysadam.info/__statics/gudangsoal/files/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/roblox-jailbreak-hack-money-francais_GM431946152.pdfIn PDF document text
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003e60.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3E60 22340 bytes
SHA-256: c5436ae66cd623e7e288502c1027bc7aac7019bc635657c36de1d84094e7969e
font_01_sfnt_off00007018.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7018 19528 bytes
SHA-256: a2d596a2925d87d28e94781c95dd89da6fdc9bb61f001ece3e0a89b8f9158e8e

Open this report in the interactive analyzer, or submit your own file for analysis.