Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d68deb46e25ee18…

MALICIOUS

PDF

36.6 KB Created: 2021-06-25 16:26:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: e290890efa221a657443927b11b5ac4f SHA-1: 87868e06cd3257921f9b51174b4995a816dcb1cc SHA-256: 5d68deb46e25ee1819b5eeec487ac3e144cc2e1671c5dcce619c73d122e3578c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains a lure for game hacks and free currency, directing users to a malicious URL. The ML classifier strongly indicates maliciousness, and the PDF_GAME_HACK_REDIRECT_LURE heuristic confirms the deceptive nature of the embedded link. No scripts were extracted, but the overall pattern suggests a phishing attempt to redirect users to a potentially harmful site.

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/play-roblox-online-for-free-no-download-game-hack PDF link annotation
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/roblox-online-free_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-attack-link_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-instagram-free-spins_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/mcpe-free-download_GM479516143.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-things-on-roblox_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/roblox-website-robux_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/www-coin-master_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/roblox-giveawayxzy-online-hack_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://min2mojokerto.sch.id/__statics/gudangsoal/files/coin-master-free-link-spin_GM406889139.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_002_off000034ef.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x34EF 22872 bytes
SHA-256: d955b5ab8c970785a6aa72b554310fd9f294abc13063bb8a32f22a572af8a386
font_01_sfnt_off0000685c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x685C 19612 bytes
SHA-256: f469d70274e5a741fb6a01e796bcd644908ea240b719de45ee073f9d9a071bc3

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