Malicious PDF — malware analysis report

Static analysis result for SHA-256 032cddff41f82e11…

MALICIOUS

PDF

50.5 KB Created: 2021-06-11 11:56:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e2bdc8c6cf2705d8c3b2b63926fd6bcc SHA-1: c453f4ffc0da254aa452a3c821bf1b57f3d4d830 SHA-256: 032cddff41f82e113886b8d7253a41bfcddd04626e31a82c756d1221a0dc11d4
82 Risk Score

Malware Insights

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

The document contains a lure to install a browser extension or update, a common social-engineering tactic for malware delivery. It also embeds external URLs, one of which is directly linked to a cheat mode for a game, suggesting a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded URLs indicate a malicious intent to redirect users to potentially harmful content or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9779

Heuristics 4

  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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 https://netcdn.tw/app/431946152/theme-park-tycoon-cheat-mode-roblox-game-hack
    • https://www.elevage-chiot.fr/images/make-free-robux_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/free-roblox-accounts-2021-with-robux_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/free-robux-no-verification-at-all_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/offers-for-robux_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdf
    • https://www.elevage-chiot.fr/images/how-do-you-hack-into-someones-roblox-account_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/coin-master-village-4_GM406889139.pdf
    • https://www.elevage-chiot.fr/images/murder-mystery-free-code-knife-games-roblox_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/pubg-uc-seller_GM1330123889.pdf
    • https://www.elevage-chiot.fr/images/free-robux-easy-and-fast_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/hack-coin-master-app_GM406889139.pdf
    • https://www.elevage-chiot.fr/images/how-to-get-free-robux-without-verification_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/coin-game_GM406889139.pdf
    • https://www.elevage-chiot.fr/images/free-robux-generator-for-kids_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/minecraft-free-unblocked_GM479516143.pdf
    • https://www.elevage-chiot.fr/images/free-minecraft-accounts-reddit_GM479516143.pdf
    • https://www.elevage-chiot.fr/images/free-robux-calc-and-spin-wheel_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/roblox-cheat-codes-mad-city_GM431946152.pdf
    • https://www.elevage-chiot.fr/images/get-free-spins-coin-master-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005306.bin
9f77198b62493edc324ea98fd1e1bd17909652967dd0e048a9810b702fd6145f
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5306 28080 bytes
font_01_sfnt_off000092e1.bin
40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf
pdf-font-stream PDF embedded font (sfnt) at offset 0x92E1 3884 bytes
font_02_sfnt_off00009f88.bin
a725f0f9ef9c87ff8318df3607d536582121e38fbcf66144372298b4d1f325ce
pdf-font-stream PDF embedded font (sfnt) at offset 0x9F88 19416 bytes