Malicious PDF — malware analysis report

Static analysis result for SHA-256 1db7c0c3f02e016b…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 00:11:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 65f3da9472a8b81ac5e275d5c0f07f62 SHA-1: f88830b310d260a9357f5b0f4281aff809be9b3e SHA-256: 1db7c0c3f02e016b5003db4c5048f72f9f513530fc03ac17d319d922f9ab7613
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic firing for a game hack redirect lure, pointing to the URL http://netcdn.tw/app/479516143/how-do-you-install-minecraft-for-free-game-hack. The document body also contains this URL and other links related to game cheats and free items, suggesting a social engineering tactic to trick users into visiting a malicious site. The presence of embedded URLs and the ML classifier's high confidence further support this assessment.

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.tw/app/479516143/how-do-you-install-minecraft-for-free-game-hack PDF link annotation
    • https://library.itn.ac.id/perpusitn/repository/no-scam-free-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/kazoks-roblox-hack-script_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-para-roblox-dragon-ball-rage-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/coin-master-free-spins-link-may-2021_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/no-verification-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-hack-2021-free-robux-generator-working-method-scratch_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/instant-robux_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-de-roblox-para-atravesar-cosas-facil-hack_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-no-human-verification-or-survey-2021-on-android_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-murder-mystery-2-halloween-hack-candy_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-strucid-hitbox-hack-2021-august_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/free-robux-codes-2021-april_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-get-roblox-on-ps4-for-free_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/get-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/roblox-password-hacker_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-do-you-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/hack-roblox-2021-17-de-junio_GM431946152.pdfIn PDF document text
    • https://library.itn.ac.id/perpusitn/repository/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000337c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x337C 22528 bytes
SHA-256: d8659036f39ca499b13358475aacdecb7c3fe1677c2850267474693a85b7c60b
font_01_sfnt_off00006557.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6557 18708 bytes
SHA-256: 6af8b027571441d32471294c8ae72a65a82cb59f66c82d9c2c5e10774068109a

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