Malicious PDF — malware analysis report

Static analysis result for SHA-256 0eee9db1d4e05045…

MALICIOUS

PDF

46.7 KB Created: 2021-06-09 03:19:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: d0368203aa969fb884c3a6c8b8ea937a SHA-1: 043a26c4c4e527a8b7b69077ec2be2eb3d38bc73 SHA-256: 0eee9db1d4e05045c56973d7d571f202e45fe52f8f9fdb2bb0293931592f5d5c
102 Risk Score

Malware Insights

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

The document contains numerous embedded URLs and a primary URL pointing to a download for game-related cheats. The heuristic 'SE_SECRET_RECOVERY_LURE' suggests the document may also attempt to phish for user credentials or recovery secrets, disguised as a game-related offer. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9748

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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/free-santa-obby-roblox-game-hack
    • http://altc.de/images/coin-master-100-spin-hack_GM406889139.pdf
    • http://altc.de/images/coin-master-free-coins-today_GM406889139.pdf
    • http://altc.de/images/get-me-robux-for-free_GM431946152.pdf
    • http://altc.de/images/free-daily-spins-coin-master-2021_GM406889139.pdf
    • http://altc.de/images/how-do-u-get-free-robux-2021_GM431946152.pdf
    • http://altc.de/images/free-robux-accounts_GM431946152.pdf
    • http://altc.de/images/coin-master-fan-club_GM406889139.pdf
    • http://altc.de/images/free-coin-master-cards_GM406889139.pdf
    • http://altc.de/images/minecraft-font-free_GM479516143.pdf
    • http://altc.de/images/free-minecraft-packs_GM479516143.pdf
    • http://altc.de/images/como-hackear-una-cuenta-de-roblox-2021_GM431946152.pdf
    • http://altc.de/images/youtube-how-to-get-free-robux_GM431946152.pdf
    • http://altc.de/images/haktuts-coin-master-free-spins-2021_GM406889139.pdf
    • http://altc.de/images/coin-master-hacks-2021_GM406889139.pdf
    • http://altc.de/images/coin-master-redeem-code-free_GM406889139.pdf
    • http://altc.de/images/best-free-roblox-executor_GM431946152.pdf
    • http://altc.de/images/free-coin-master-hacks-no-verification_GM406889139.pdf
    • http://altc.de/images/coin-master-free-cards-link_GM406889139.pdf
    • http://altc.de/images/free-robux-real-working_GM431946152.pdf
    • http://altc.de/images/roblox-hacks-for-mac_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004dff.bin
eb098f423ca954b9ae50c7da4ad1192c3bb6bd37bae8fdedeb2cf357431dd400		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DFF 24996 bytes
font_01_sfnt_off000087e8.bin
4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87E8 3400 bytes
font_02_sfnt_off00009312.bin
eba5345f8b37f90a19d32304a0d4b6d5e9dc67a7a025612d7401633c925e949f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9312 18460 bytes

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