Malicious PDF — malware analysis report

Static analysis result for SHA-256 de711bd19ceff48c…

MALICIOUS

PDF

33.5 KB Created: 2021-07-09 19:28:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8843a44f7ce04c8cc99a4905d2708903 SHA-1: 7910f859a5861ba5b8352eb117ad305470216af6 SHA-256: de711bd19ceff48c46fc99c1f415db9356b5c26b2b33cc9c00a0116c9fca9bcc
82 Risk Score

Malware Insights

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

The PDF document contains numerous links and a primary lure related to 'free Robux' and game hacks, directing users to malicious websites. The ML classifier strongly indicated maliciousness, and the embedded URLs are consistent with a phishing or scam campaign designed to redirect users to potentially harmful content or download further malware.

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.tw/app/431946152/how-to-make-free-robux-game-hack PDF link annotation
    • http://www.sovtigaz.ru/f/files/free-rewards-roblox_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/como-generar-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/roblox-free-mask_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/ninja-zone-roblox-money-cheat_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/how-to-download-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/noclip-roblox-cheat-engine-2021_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/minecraft-112-2-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/how-to-make-roblox-clothes-for-free_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/coin-master-free-spins-2021-blogspot_GM406889139.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/script-to-free-objet-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/minecraft-free-trial_GM479516143.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/roblox-free-packages-2021_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/how-to-get-free-robux-by-using-cookies-2021_GM431946152.pdfIn PDF document text
    • http://www.sovtigaz.ru/f/files/oprewards-com-roblox_GM431946152.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_off00002d8e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D8E 21748 bytes
SHA-256: 5ca1d1fbccc5a6da790a74c8c52c1320648966061689de73a6e15590e808c2ad
font_01_sfnt_off00005d77.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D77 19244 bytes
SHA-256: 6b22af1083df9260d35a8428a36ac91eb4c7dbc1159f4e02fe88489ba0efcc00

Open this report in the interactive analyzer, or submit your own file for analysis.