Malicious PDF — malware analysis report

Static analysis result for SHA-256 d8fc89c05e49a991…

MALICIOUS

PDF

48.1 KB Created: 2021-05-17 07:01:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: cd1370d112d4cba571c18a26ec096420 SHA-1: d098c701d78734f080287dffc701afecd7a918e3 SHA-256: d8fc89c05e49a991cebf2baa6f87bcf57cfbd1173ca2b6ebfef8a4116e667dcf
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, many of which are part of a link farm designed to appear as search engine results for game hacks and free spins. The primary external URL, https://netcdn.xyz/app/406889139/coin-master-daily-free-spins-game-hack, suggests a lure for users seeking cheats for the game Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, reinforcing the malicious intent to direct users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

Heuristics 4

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • 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.xyz/app/406889139/coin-master-daily-free-spins-game-hack
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/coin-master-hack-xyz-download-free_GM406889139.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/roblox-ftw_GM431946152.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/claim-free-spins-coin-master_GM406889139.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/free-minecraft-bedrock-server-hosting-24-7_GM479516143.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/como-hackear-coin-master-iphone_GM406889139.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/coin-master-free-spins-cheats_GM406889139.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/free-robux-hacker-us_GM431946152.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/free-hacks-for-coin-master_GM406889139.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/moonactive-free-spins-2021_GM406889139.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/download-coin-master-hack-tool-v1-9_GM406889139.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-verification-2021_GM431946152.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/minecraft-hack-client-download_GM479516143.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/roblox-mobile-hack_GM431946152.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/get-free-cards-in-coin-master_GM406889139.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/free-coin-master-spins_GM406889139.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/how-do-you-get-robux_GM431946152.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-human-verification_GM431946152.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/give-free-robux_GM431946152.pdf
    • https://man1kotasmi.sch.id/__statics/gudangsoal/files/coin-master-hack-without-human-verification-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d26.bin
823aa400a8cc57657e04f60414fab8aa49e8a05640812f58807a797d79db6855		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D26 24644 bytes
font_01_sfnt_off0000853f.bin
e06aca5f85e50ae6cefda302c5299c18ab6d27c174f74f0bb0ee8efa7ccb4468		 pdf-font-stream PDF embedded font (sfnt) at offset 0x853F 8676 bytes
font_02_sfnt_off000099ca.bin
e42bde5f0ce420544e36e42831a39ceefa2103814e02a0c87b67b282abd28734		 pdf-font-stream PDF embedded font (sfnt) at offset 0x99CA 18308 bytes

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