Malicious PDF — malware analysis report

Static analysis result for SHA-256 7f8c932c5c385f5c…

MALICIOUS

PDF

34.5 KB Created: 2021-07-03 10:40:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 376655e487043fed088e4333b470d682 SHA-1: a9bb375e107a74a754891a3e386c127c9572239e SHA-256: 7f8c932c5c385f5ce1ac66479273f923027c98249f6f42f162fcf0a337573a57
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks, directing users to a malicious URL. The ML classifier strongly indicates maliciousness, and the presence of embedded URLs further supports a phishing or redirection attack. Although no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to lead the user to a malicious site, likely for credential harvesting or malware delivery.

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.co/app/431946152/hacks-para-roblox-game-hack PDF link annotation
    • https://tanahlot.id/assets/CKImages/files/how-to-get-free-mods-in-minecraft_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/robux-and-tix-hack-download_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/hackear-coin-master-espaol_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/get-real-free-robux_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/hacks-roblox_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-hack-apk-july-29_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/roblox-lawsuit_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-multiplayer-minecraft-server_GM479516143.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-be-a-wannabe-hacker-on-roblox_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/jeux-paintball-roblox-hack_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/bear-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-roblox-transmitter-generator_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/free-robux-codes-october-2021_GM431946152.pdfIn PDF document text
    • https://tanahlot.id/assets/CKImages/files/how-to-get-any-hat-on-roblox-for-free_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_off000030aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30AA 22284 bytes
SHA-256: ceb373de258e1ea99dffde86f1152acff7d65b0a57ee21c3e967fa18bf328a09
font_01_sfnt_off00006279.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6279 18808 bytes
SHA-256: 18c04ed6d416389464b421298170c47648070a4b7ff5aa0adb6f039d676fa700