Malicious PDF — malware analysis report

Static analysis result for SHA-256 55a01fb7ce17f361…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 17:10:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 962bd25b5fbb6992533997e2e22dcf01 SHA-1: a51ece1eefcfc065c22d118995575dd761ef72eb SHA-256: 55a01fb7ce17f361c7838ab7cf00f13cfdc80c20a9f5e03cc491cdbf7bf57029
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains multiple embedded URLs and a visual call-to-action button, strongly suggesting a phishing or social engineering attempt. The content lures users with promises of in-game currency and items, directing them to external sites that likely host further malicious content or scams. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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-free-spins-daily-fb-champion-game-hack
    • http://36.94.36.7/elib//repository/coin-master-free-spins-16-04-19_GM406889139.pdf
    • http://36.94.36.7/elib/repository/free-links-coin-master_GM406889139.pdf
    • http://36.94.36.7/elib/repository/cheat-roblox-cb-r-download_GM431946152.pdf
    • http://36.94.36.7/elib//repository/free-spin-link-coin-master-today_GM406889139.pdf
    • http://36.94.36.7/elib/repository/roblox-get-coordinates-hack_GM431946152.pdf
    • http://36.94.36.7/elib/repository/master-free-spins-and-coins_GM406889139.pdf
    • http://36.94.36.7/elib/repository/haktuts-coin-master-free-spin-link_GM406889139.pdf
    • http://36.94.36.7/elib/repository/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdf
    • http://36.94.36.7/elib/repository/free-pet-snacks-coin-master_GM406889139.pdf
    • http://36.94.36.7/elib/repository/make-robux_GM431946152.pdf
    • http://36.94.36.7/elib/repository/how-to-make-hacks-with-studio-roblox_GM431946152.pdf
    • http://36.94.36.7/elib/repository/free-coin-master-cards_GM406889139.pdf
    • http://36.94.36.7/elib/repository/free-roblox-promo-codes-for-robux_GM431946152.pdf
    • http://36.94.36.7/elib/repository/free-spins-on-coin-master-2021_GM406889139.pdf
    • http://36.94.36.7/elib/repository/how-to-get-a-cape-in-minecraft-for-free_GM479516143.pdf
    • http://36.94.36.7/elib//repository/roblox-hacked-com-2021_GM431946152.pdf
    • http://36.94.36.7/elib/repository/get-free-spins-coin-master-link_GM406889139.pdf
    • http://36.94.36.7/elib/repository/how-to-hack-a-roblox-account-easy_GM431946152.pdf
    • http://36.94.36.7/elib/repository/como-descargar-coin-master-hackeado_GM406889139.pdf
    • http://36.94.36.7/elib//repository/how-to-get-free-tokens-in-minecraft-ps4_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000030a6.bin
42fb01f9c0e3e6b27af5e20b409005198d4ab2284c7dea5edac4d6a4b8b32a4c
pdf-font-stream PDF embedded font (sfnt) at offset 0x30A6 22624 bytes
font_01_sfnt_off0000632e.bin
51e8a71e09394fed5f421e653934fdd3595df511c0ce3b30553a7297a7ed1ba3
pdf-font-stream PDF embedded font (sfnt) at offset 0x632E 19180 bytes