PDF static analysis report

Static analysis result for SHA-256 5bf3b543c264ba03…

SUSPICIOUS

PDF

34.3 KB Created: 2021-06-25 16:54:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 04d2c2244cef8af2850821780641cf11 SHA-1: cc956db21daac927ed2cb79eaeabc927c1bb65ba SHA-256: 5bf3b543c264ba0327369ddee3a36a34b1e873fddcb0de315db424a48badfedc
42 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded URLs and a call-to-action phrase, strongly suggesting a social engineering attempt to trick the user into downloading a malicious file. The ML classifier also flagged this PDF as malicious with high confidence. The document body and extracted URLs point towards lures for game hacks and cheats, indicating a likely attempt to distribute malware disguised as cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 3

  • 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/roblox-making-other-people-chat-hack-game-hack PDF link annotation
    • https://osk-sibir.ru/images/appsmob-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/free-robux-no-human-verifacaition_GM431946152.pdfIn PDF document text
    • https://osk-sibir.ru/images/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/the-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/coin-master-hack-2021-app_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/free-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://osk-sibir.ru/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • https://osk-sibir.ru/images/how-to-create-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://osk-sibir.ru/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://osk-sibir.ru/images/coin-master-free-spin-and-coin-link-2021-today_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/follow-bor-roblox-hack_GM431946152.pdfIn PDF document text
    • https://osk-sibir.ru/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/coin-master-attack-hack-apk_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/coin-master-hack-ios-cydia_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/coin-master-hack-apk-35-8_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/coin-master-20-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://osk-sibir.ru/images/how-to-get-free-roebucks_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_off00002ef7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EF7 21960 bytes
SHA-256: bd28bf99c30bdf979de4ebfc82cf8c7bcf7f3fdf55ff73fd4ecf372f189cece1
font_01_sfnt_off00005f9f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F9F 19572 bytes
SHA-256: 73083f2c7ecfa63007ad2e74d6ebaf5179888cfd19bb854b5bbf4c2b44870593