Malicious PDF — malware analysis report

Static analysis result for SHA-256 3482c44fb58c7fb9…

MALICIOUS

PDF

35.7 KB Created: 2021-07-04 12:43:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3395a2ade174dda3448cd428ca6cf7f1 SHA-1: 297f8e9c68a8085ef8107ba61a566290338d38bb SHA-256: 3482c44fb58c7fb917c42a94ec252bb121a816deb84a08c6f71dbe2db861985c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing for a "GAME HACK REDIRECT LURE", pointing to the URL http://netcdn.tw/app/406889139/coin-master-support-game-hack. This URL is also listed as an embedded URL and is present in the document body, suggesting it is the primary malicious destination. The document's content and the lure indicate a social engineering attempt to trick users into visiting a site that likely distributes malware or engages in phishing.

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/406889139/coin-master-support-game-hack PDF link annotation
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/how-to-get-free-robux-no-survey_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/free-robux-with-no-survey_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/do-you-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/mcpe-master-unlimited-coins-free-download_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/hack-coin-master-2021-pc_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/roblox-hacker-skin_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/coin-master-game-2021-free-spin-link_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/give-free-robux_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/how-to-get-free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/roblox-tix-factory-free_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/free-robux-app-real_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/how-to-make-your-own-dominus-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/free-captain-america-costumes-roblox_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/500-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://www.soil2soul.ae/uploaded_files/userfiles/files/lifting-simulator-roblox-new-hack_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_002_off0000363e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x363E 22844 bytes
SHA-256: bdf3510c236af3ddaeb56a00072583fda3c44a36eb502265b2a50b2ba7a4efc1
font_01_sfnt_off00006957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6957 18152 bytes
SHA-256: 8a7ca81e6782867671c5d30d69d8887df81aa78f66bc52c9d916217fc2f60911

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