Malicious PDF — malware analysis report

Static analysis result for SHA-256 2e42d22b1ea64d5b…

MALICIOUS

PDF

47.9 KB Created: 2021-05-12 11:36:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-23
MD5: 547bc84cbfbc481dce5f4d13cbaae8cf SHA-1: fa3289870ebd8da2811ac20eb8ad2e484e982469 SHA-256: 2e42d22b1ea64d5b4887b7d6a1dff8a70e2bbf0b8ec15496540ca58a03751acb
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'free generators' for popular games. The primary redirect URL is https://netcdn.xyz/app/431946152/roblox-girl-game-hack, which is flagged as malicious. The document body and embedded URLs suggest a social engineering lure to trick users into visiting potentially harmful sites, likely for further malware delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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.xyz/app/431946152/roblox-girl-game-hack In PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/roblox-sexually_GM431946152.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/coin-master-new-link-free-spin_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/coin-master-hack-lost-world-2021_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/robux-adder_GM431946152.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/coin-master-online-hack-download_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/apps-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/roblox-assassin_GM431946152.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/robux-no-survey_GM431946152.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/coin-master-attack-hack-apk_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/roblox-hack-game_GM431946152.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-links_GM406889139.pdfIn PDF document text
    • http://www.jewelspell.com/uploaded_files/userfiles/files/get-free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000505e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x505E 26872 bytes
SHA-256: 4f2153ce7beaac701b7ffad34de38a8f48bdd617c76b9e8b3a49b21f23c31039
font_01_sfnt_off00008cf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CF6 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off00009a08.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9A08 17904 bytes
SHA-256: 0198c4e576fabf4ae71baaa50901788f8596c154ad681f47ebe4edd98d45d4fd

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