Malicious PDF — malware analysis report

Static analysis result for SHA-256 25e1ebd5cfa27781…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 05:12:07 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 2a0abefa280c65716217cb9fc3a92fe2 SHA-1: 3c9862047f5a6fc4a414809c2e184c0bf2c89ece SHA-256: 25e1ebd5cfa277819cf0618c4a845f94b238d5ccf1f21440374895fa566e01c7
122 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a high-confidence heuristic indicating it links to a game hack redirector, a common lure for malware. The document body and embedded URLs reinforce this theme, pointing to sites offering game cheats and generators. The presence of a "password-protected archive handoff" heuristic suggests the linked content may be an encrypted payload.

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/431946152/how-to-hack-the-streets-roblox-game-hack PDF link annotation
    • https://library.sman1berau.sch.id/repository/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/xray-hack_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/wwwroblox-cheatgdn_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-hack-apk-download-pc_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/get-free-robux-today_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-group-funds-on-roblox_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-cheats-in-roblox-jailbreak-yt_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-roblox-rom_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-spin-link-daily_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-shinobi-story-cheat-script_GM431946152.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/flip-master-free-coins_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/coin-master-hack-pc-download_GM406889139.pdfIn PDF document text
    • https://library.sman1berau.sch.id/repository/roblox-aimbot-hack-phantom-forces_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_off00003118.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3118 22872 bytes
SHA-256: 37b649931d5eee55a3c0000fe9be43da864236b1c1603b619ff57e3bae641308
font_01_sfnt_off0000642b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x642B 18904 bytes
SHA-256: 870452e97a331eaac81973d8466dd4649492d4549a6a22e25db1ab2165d63c6d