Malicious PDF — malware analysis report

Static analysis result for SHA-256 396061468c333653…

MALICIOUS

PDF

44.5 KB Created: 2021-06-03 10:05:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 60cd138bc9510fed77aba07553c4a80a SHA-1: 7723b91d3c8319e5922c98e692f322daf29d2a37 SHA-256: 396061468c333653a6f57ac99bdcfb9659710f4e031ea2a48a4f9f598d9d887e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures related to game hacks and free in-game currency, directing users to external URLs. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful websites. While no scripts were explicitly extracted, the nature of the lures suggests a phishing or scam attempt, likely initiated via a spearphishing attachment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/is-there-any-tricks-or-working-hacks-for-coin-master-game-hack PDF link annotation
    • http://library.acehresearch.org/repository/coin-master-free-spins-link-today_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/earn-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-pins_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-spins-for-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-coin-master-hacks-no-verification-or-survey_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-free-link-blogspot_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-400-spin-link-today_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-online-hack-tool_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-heaven-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://library.acehresearch.org/repository/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/without-tiktok-free-followers_GM835599320.pdfIn PDF document text
    • http://library.acehresearch.org/repository/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/boost9-com-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.acehresearch.org/repository/minecraft-hacks-ps4_GM479516143.pdfIn PDF document text
    • http://library.acehresearch.org/repository/coin-master-ios-hack_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_004_off00005232.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5232 24500 bytes
SHA-256: f607625562a949faea1956cd836a4a6fbb075cf19bc5221e0d92eba1809016fc
font_01_sfnt_off00008a33.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A33 18712 bytes
SHA-256: bf9b6bef81a86b28c31fcdcf4878edb32919432b4a7a59645f7f2c7dbce8e9d8

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