Malicious PDF — malware analysis report

Static analysis result for SHA-256 f12d8ea9ebcdda90…

MALICIOUS

PDF

34.4 KB Created: 2021-07-03 17:29:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 338c095c9b2f0d78a32c2fa3f0da281f SHA-1: 91e86f2a71181791c7a3625c64aae5610e01f257 SHA-256: f12d8ea9ebcdda902a5ae5a17e519edee87d1bd76c0a41d8599c9f9d0a9baa62
62 Risk Score

Malware Insights

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

The PDF contains multiple embedded URLs and a document body that explicitly promises cheats and hacks for popular games, aiming to trick users into downloading malicious files. The ML classifier strongly flagged this PDF as malicious, and the presence of direct IP addresses in URIs further supports a malicious intent to host and distribute malware.

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/how-to-get-free-snacks-on-coin-master-game-hack
    • http://45.115.65.99/__statics/gudangsoal/files/minecraft-free-download-chromebook_GM479516143.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/roblox-robux-hack_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/roblox-free-clothes-girl_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/minecraft-skins-download-free_GM479516143.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/how-to-hack-to-get-robux_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/how-to-win-robux_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/roblox-promo-codes-for-free-robux_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-time-speed-hack_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/robux-free-gift-card_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-hacks_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/free-spin-coin-master-hack-2021_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/minecraft-bedrock-edition-free_GM479516143.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/free-roblox-party-printables_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/hack-de-coin-master_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/roblox-admin-hack_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/cheat-engine-for-roblox-jailbreak_GM431946152.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/free-disney-plus-accounts-tiktok_GM835599320.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/coin-master-free-spins-blogspot_GM406889139.pdf
    • http://45.115.65.99/__statics/gudangsoal/files/robux-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000030c7.bin
525c9687a9c6b53a0f1533359f9c343ecd5aeed6719b2f2703d1b52e9fa18a9f
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x30C7 22744 bytes
font_01_sfnt_off0000638e.bin
b6182daa68ff06b6167a35a103e01f243afa869e4713b8423aeb12bc49028461
pdf-font-stream PDF embedded font (sfnt) at offset 0x638E 18332 bytes