Malicious PDF — malware analysis report

Static analysis result for SHA-256 9f2eb4bd822eedca…

MALICIOUS

PDF

47.5 KB Created: 2021-06-04 00:48:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 07deff43c81cb7b6d9cbb97ea60282f8 SHA-1: d57b58bf9d4ff8e22dcd9042d38e48adba2ef453 SHA-256: 9f2eb4bd822eedca9b16414bbf6ea325f404acc5dacbe58e4df86611a3090cea
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a prominent external URI pointing to resources related to game cheats and free in-game currency, suggesting a lure for potentially unwanted downloads or phishing. The ML classifier also flagged this PDF as malicious with high confidence. While no scripts were explicitly extracted, the presence of embedded URLs and the nature of the lures indicate an attempt to direct users to malicious or deceptive content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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.online/app/431946152/how-to-earn-free-robux-game-hack
    • https://opac.umrah.ac.id/repository/free-card-link-coin-master_GM406889139.pdf
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-1701-20_GM406889139.pdf
    • https://opac.umrah.ac.id/repository/minecraft-116-1-download_GM479516143.pdf
    • https://opac.umrah.ac.id/repository/how-do-u-get-robux_GM431946152.pdf
    • https://opac.umrah.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdf
    • https://opac.umrah.ac.id/repository/free-robux-2021_GM431946152.pdf
    • https://opac.umrah.ac.id/repository/coin-master-hack-app-download-free_GM406889139.pdf
    • https://opac.umrah.ac.id/repository/coin-master-hack-to-get-free-spins_GM406889139.pdf
    • https://opac.umrah.ac.id/repository/tiktok-free-fans_GM835599320.pdf
    • https://opac.umrah.ac.id/repository/minecraft-skins-download-free_GM479516143.pdf
    • https://opac.umrah.ac.id/repository/free-robux-discord_GM431946152.pdf
    • https://opac.umrah.ac.id/repository/minecraft-pe-hacks_GM479516143.pdf
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-android_GM406889139.pdf
    • https://opac.umrah.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdf
    • https://opac.umrah.ac.id/repository/coin-master-links-for-free-spins_GM406889139.pdf
    • https://opac.umrah.ac.id/repository/my-roblox-account-was-hacked_GM431946152.pdf
    • https://opac.umrah.ac.id/repository/coin-master-hack-2021-iphone_GM406889139.pdf
    • https://opac.umrah.ac.id/repository/minecraft-bedrock-edition-hacks_GM479516143.pdf
    • https://opac.umrah.ac.id/repository/daily-coin-master-free-spin-apk_GM406889139.pdf
    • https://opac.umrah.ac.id/repository/minecraft-mod-menu_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005186.bin
01562e3500cdc9b42dedf50c377d604c46a7659c38e999c601ba13b81c484c3d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5186 25664 bytes
font_01_sfnt_off00008c13.bin
2c325fad077583a1174af2426abba7a1421119c1277965974b4343cd082e5c01		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8C13 2988 bytes
font_02_sfnt_off0000966f.bin
14292e34eda5b41bb4f7162ff4266963adc8cc9da2edd2eb943feb3a845ce32e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x966F 18404 bytes

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