Malicious PDF — malware analysis report

Static analysis result for SHA-256 16c3374040363652…

MALICIOUS

PDF

45.1 KB Created: 2021-05-14 00:52:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 277780e32e25396fc2e7335abc6f9c9f SHA-1: f96c2c714bc05c2629c4392a2f62d6afee3a1048 SHA-256: 16c3374040363652d54135caee730ffbf4e1b3eefbe9ec9f874f68c8ae7f4121
62 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs advertising game hacks and cheats, such as 'coin-master-hack-cydia-game-hack'. The presence of these links, combined with the ML classifier flagging the document as malicious, strongly suggests a phishing or malware distribution attempt. The document's content and embedded links indicate an attempt to lure users into downloading potentially harmful files.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9621

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-cydia-game-hack
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/get-free-robux-now_GM431946152.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/minecraft-java-edition-free-download_GM479516143.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/hack-coin-master-with-lucky-patcher_GM406889139.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/optifine-pe_GM479516143.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/roblox-mobile-hack_GM431946152.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/free-roblox-groups_GM431946152.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/free-coin-master-cards_GM406889139.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/coin-master-hack-no-survey_GM406889139.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/robux-hack-no-human-verification_GM431946152.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/free-robux-just-click_GM431946152.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/coin-master-hack-without-verification-code_GM406889139.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/classic-minecraft-net-hacks_GM479516143.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/free-coins-coin-master-spins_GM406889139.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/script-executor-roblox-free_GM431946152.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/minecraft-hacked-client-download_GM479516143.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/coin-master-daily-free-spins-link-2021_GM406889139.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/free-roblox-accessories_GM431946152.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/how-to-get-more-robux_GM431946152.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/robux-fun-hack_GM431946152.pdf
    • http://smagripadps.sch.id/new/public/ckfinder/userfiles/files/robux-com-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004b25.bin
de450f76d2358cd4bc704723fbc73763786bdeec7cbdcad08e1414f2106c0a80		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B25 24900 bytes
font_01_sfnt_off0000847d.bin
c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x847D 2896 bytes
font_02_sfnt_off00008e63.bin
4738d241759e4cff2f8f871975220420d30bcacc60cdf6fe40909b1f8f62f8b7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E63 18072 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.