Malicious PDF — malware analysis report

Static analysis result for SHA-256 7ff2ce43d61b8b30…

MALICIOUS

PDF

34.9 KB Created: 2021-06-26 19:55:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 8707ddbdac2eadfd6fef47cd9dd422d3 SHA-1: 1ec12a5905c3379bc4a51ea72e65818ae11efb3f SHA-256: 7ff2ce43d61b8b300cb6da56b056369045a643920e7491ffe6c1b307676aa883
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. It uses a password-protected-archive lure. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/glitch-hacks-free-roblox-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/how-do-u-get-free-obc-including-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-no-password_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-doge-in-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-free-tiktok-coins_GM835599320.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-roblox-injector_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/robux-free-ultimategamer365_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-off-roblox_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/minecraft-coins-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-link-download_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/release-boku-no-roblox-remastered-free-lvl_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spin-link-today-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-hack-in-robux-no-virus_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-all-free-stuff_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
stream_003_off000062de.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x62DE 19212 bytes
SHA-256: 649e34cb33a4a2e510aee592c1b1d55cbd496406c4c8a5b5b4be0bfc7acc5a33
font_00_sfnt_off0000310c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x310C 22408 bytes
SHA-256: 4d6be2e8c9eb2a58152c4c6288d4ce3a94853515ee80442cdd37e8a49e27f984

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