Malicious PDF — malware analysis report

Static analysis result for SHA-256 90a44a511bd08eec…

MALICIOUS

PDF

48.5 KB Created: 2021-06-01 19:03:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 8c558f1a9a3fb558adf1ab6bc3cb0e49 SHA-1: 254fe5694d26b16dea2c088478ec0389c0d5ec83 SHA-256: 90a44a511bd08eec2cd324731a7c139e7f2537ebc9896421b32d6c1adbeeee85
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with the promise of 'Roblox Hack Site No Verification'. The presence of these links and the 'SE_DOWNLOAD_BUTTON' heuristic strongly suggest a phishing or scam attempt designed to redirect users to potentially harmful websites. No scripts were extracted from this sample, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/431946152/roblox-hack-site-no-verification-game-hack In PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/hacked-roblox-jailbeak_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/fiverr-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/how-to-get-free-followers-on-tiktok_GM835599320.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/roblox-cheat-engine-speed-hack-code_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/roblox-hack-rc7-download_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/infinite-moneyz-roblox-injector-hack-pizza-place_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/how-to-make-your-own-clothes-on-roblox-free_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-roblox-hack-logiciel_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-cods-free-roblox-obc-or-robux_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/minecraft-hacked-client_GM479516143.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/cch-ly-robux-free-ko-hack_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/inject-hack-app-roblox_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-tiktok-fans-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/roblox-mad-city-hack-script_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/free-robux-hack_GM431946152.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/minecraft-building-hacks_GM479516143.pdfIn PDF document text
    • https://baytalebaa.com/wp-content/uploads/fsqm-files/roblox-dragon-ball-rage-hack-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000050ff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50FF 28504 bytes
SHA-256: e35220de283a28d30362b00d2abcff959879a9c6bf11c2d9478c08825996d193
font_01_sfnt_off00009002.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9002 2940 bytes
SHA-256: eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a
font_02_sfnt_off00009a12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A12 18540 bytes
SHA-256: a5027356c4c6eae29b8818f0dd1c0a3bb0c150be01afe98087f1d4b18e5bf87a