Malicious PDF — malware analysis report

Static analysis result for SHA-256 c98a45dbc3d11797…

MALICIOUS

PDF

34.8 KB Created: 2021-06-26 23:55:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: ff0b40c7f506e1f5b6769bd4402b2a72 SHA-1: 617386538ab21efa10549c96aeae571ba2ae43a1 SHA-256: c98a45dbc3d1179774b8f4853b6c6617c73e8dc8198712c980e8d89b06daba0f
82 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs that redirect to websites offering game cheats and hacks, such as 'cheat-roblox-adopt-me-game-hack'. This lure is designed to trick users into clicking malicious links, likely leading to further malware downloads or phishing attempts. The ML classifier also strongly indicated maliciousness.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • 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/cheat-roblox-adopt-me-game-hack PDF link annotation
    • https://promotvsatelit.com/ckfinder/userfiles/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/free-minecraft-printables_GM479516143.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/roblox-free-robux-generator_GM431946152.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/free-roblox-gift-cards-not-used_GM431946152.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/coin-master-hack-version-ios_GM406889139.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/free-robux-hack-easy-and-fast_GM431946152.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/coin-master-free-mighty-lion-card_GM406889139.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/free-minecraft-client_GM479516143.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/hacker-minecraft-song_GM479516143.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/roblox-ps3-download-free_GM431946152.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/roblox-free-promo-codes-generator_GM431946152.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/tix-factory-tycoon-paquet-tix-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/minecraft-free-apk-java-edition_GM479516143.pdfIn PDF document text
    • https://promotvsatelit.com/ckfinder/userfiles/files/level-coin_GM406889139.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_off00003093.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3093 22300 bytes
SHA-256: ae6dd123e93a356b0a9392404ad97507bd2f45af4fd7f8b915cd9ab4d4a3184b
font_01_sfnt_off00006213.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6213 19304 bytes
SHA-256: bd7dfc16715c158d7dedffa14ba39c2c1d738df0c9e61c5904053a68a3e2cfe6

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