Malicious PDF — malware analysis report

Static analysis result for SHA-256 be08c604cd82f546…

MALICIOUS

PDF

32.7 KB Created: 2021-07-03 23:11:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: d94c1d8b003f76aa97532ce6cd5dbde1 SHA-1: 2d1fae7cbe67cbad40664496143960dc288ba9c3 SHA-256: be08c604cd82f5462fc6a1e70451759a06d7253076ffe662e0ac2c9c39904949
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for a 'free generator / game hack' which directs users to a URL likely leading to malware or a phishing site. The ML classifier strongly flagged this PDF as malicious, and the presence of numerous embedded URLs further supports a malicious intent. No scripts were extracted, but the document's structure and embedded links indicate a social engineering attack.

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.tw/app/479516143/how-to-get-minecraft-for-free-on-android-game-hack PDF link annotation
    • http://ggmtc.net/userfiles/files/only-you-little-mix-cheat-codes-roblox-id_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-coin-master-cards_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-free-robux-code-2021_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/ear-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-download_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/roblox-cheats_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-do-you-get-roebucks-for-free_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/how-to-free-robux_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/design-it-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-robux-pastebin-no-save_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/rbx-claim_GM431946152.pdfIn PDF document text
    • http://ggmtc.net/userfiles/files/free-minecraft-maps-pe_GM479516143.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_off00002e18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E18 21620 bytes
SHA-256: 0e3d7c4488bfb38ba52dcf75e57f1d7e8fac906bc945d5230c3eb50d6d838dc3
font_01_sfnt_off00005d08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D08 18336 bytes
SHA-256: 5e3aa0b6b74beea0410204074b4143aac9fd3082465f340837d7717624ca45a6

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