Malicious PDF — malware analysis report

Static analysis result for SHA-256 4b0d388544d8df5d…

MALICIOUS

PDF

44.9 KB Created: 2021-05-31 01:08:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 26c28684e8e4f622417f541885b4bafc SHA-1: 505f09bfb44eee6987a8b50732a58afa9b58578f SHA-256: 4b0d388544d8df5d9f98671917f35fd90718f34eff2a2734274b99f64051037d
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a prominent link in the document body, all related to game cheats and hacks, suggesting a phishing or malware distribution lure. The ML classifier strongly flagged this PDF as malicious. While no scripts were directly extracted, the presence of numerous external links indicates an attempt to redirect the user to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9580

Heuristics 4

  • QR-code redirect lure medium SE_QR_LURE
    Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
  • 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.xyz/app/479516143/minecraft-account-hacked-game-hack
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/tiktok-minecraft-hacks_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-robux-scams_GM431946152.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-minecraft-worlds_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/coin-master-free-spins-link-today-new_GM406889139.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-spins-and-coins-coin-master_GM406889139.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/minecraft-classic-free_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-robux-easy_GM431946152.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/minecraft-pocket-edition-free_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-robux-discord_GM431946152.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/get-free-robux-now_GM431946152.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/how-to-get-followers-on-tiktok-for-free_GM835599320.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-minecraft-alts_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-robux-websites-2021_GM431946152.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-ipad_GM431946152.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/minecraft-free-unblocked_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/roblox-speed-hack_GM431946152.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/coin-master-free-coins-link_GM406889139.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/100-free-spins-coin-master_GM406889139.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-spin-link-for-coin-master_GM406889139.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/how-to-play-minecraft-for-free_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/get-free-tiktok-followers_GM835599320.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/freer-tiktok_GM835599320.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-minecraft-server-hosting-24-7_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-coins-for-coin-master_GM406889139.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/minecraft-mobile-free_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-online-minecraft-server_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-mods-for-minecraft-pe_GM479516143.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/free-robux-no-verification-2021_GM431946152.pdf
    • https://digitalknowledge.pl/wp-content/uploads/fsqm-files/mobihack-net-roblox-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005513.bin
ce38b47e7f11683b6c719e914f76574ec9fc37ac698d7b61916422161a0468dc		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5513 24792 bytes
font_01_sfnt_off00008cdb.bin
008244ed49e44a6e3f1c26538d212edbe60ea445ab612c7727f56c46dc3d0edb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8CDB 18192 bytes

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