Malicious PDF — malware analysis report

Static analysis result for SHA-256 35c232ea5d29fb13…

MALICIOUS

PDF

45.9 KB Created: 2021-05-14 12:46:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f08579240debfed41d5473c3f05efc85 SHA-1: 29740eab863044d685b8b31780cf0468cf0afeb5 SHA-256: 35c232ea5d29fb13ceaeb5751c55a8081722665d5817676c3610abafbf3b3e4f
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 primary external URI pointing to sites offering hacks for popular games like Coin Master and Roblox. The document body, though partially corrupted, includes references to these games and a URL that likely leads to a download. The presence of these links and the ML classifier's high confidence score suggest a malicious intent to trick users into downloading potentially harmful applications.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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-hack-app-for-iphone-game-hack
    • http://uctaren.eu/images/free-coins-on-coin-master-without-verification_GM406889139.pdf
    • http://uctaren.eu/images/free-robux-easy_GM431946152.pdf
    • http://uctaren.eu/images/coin-master-daily-free-spins-link-2021_GM406889139.pdf
    • http://uctaren.eu/images/fbchampion-com_GM406889139.pdf
    • http://uctaren.eu/images/minecraft-app-store-free_GM479516143.pdf
    • http://uctaren.eu/images/minecraft-pocket-edition-hack_GM479516143.pdf
    • http://uctaren.eu/images/coin-master-free-coins-link-facebook_GM406889139.pdf
    • http://uctaren.eu/images/facebook-coin-master-hack_GM406889139.pdf
    • http://uctaren.eu/images/roblox-group-free-robux_GM431946152.pdf
    • http://uctaren.eu/images/hacks-for-coin-master-game_GM406889139.pdf
    • http://uctaren.eu/images/500-free-spins-coin-master_GM406889139.pdf
    • http://uctaren.eu/images/coin-master-hack-progamers_GM406889139.pdf
    • http://uctaren.eu/images/coin-master-village-4_GM406889139.pdf
    • http://uctaren.eu/images/is-minecraft-free-on-nintendo-switch_GM479516143.pdf
    • http://uctaren.eu/images/free-robux-codes-no-verification-2021_GM431946152.pdf
    • http://uctaren.eu/images/coin-master-cheats-2021_GM406889139.pdf
    • http://uctaren.eu/images/free-minecraft-java-account_GM479516143.pdf
    • http://uctaren.eu/images/free-spins-coin-master-app-iphone_GM406889139.pdf
    • http://uctaren.eu/images/coin-master-hack-apk-july-29_GM406889139.pdf
    • http://uctaren.eu/images/roblox-fun-com-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000048f5.bin
f0d8e93fcf3a9fc1414d0be9881fd293624e51e9d8ca2a792ae662e3940f955e
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48F5 26612 bytes
font_01_sfnt_off00008630.bin
4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
pdf-font-stream PDF embedded font (sfnt) at offset 0x8630 3400 bytes
font_02_sfnt_off0000915a.bin
839fd5949bb49b5044eb4b433cc9049edf304667089f82b00e0313599dbfb70d
pdf-font-stream PDF embedded font (sfnt) at offset 0x915A 18220 bytes