Malicious PDF — malware analysis report

Static analysis result for SHA-256 d6672976eb439ebc…

MALICIOUS

PDF

45.0 KB Created: 2021-05-19 21:08:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 577ab57c5831cf9e31337be4cc9c90b0 SHA-1: b96dff72d5eb2d54debeee6867919db5fc3a47c9 SHA-256: d6672976eb439ebc404fc4329deddcc2771b4975b427609a46d5cb08a1b593ac
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple embedded URLs pointing to external resources, likely intended to trick users into downloading further malicious content. The document body and extracted URLs suggest a lure related to free game items or accounts, a common social engineering tactic. The ML classifier strongly flagged this PDF as malicious, supporting the assessment of a malicious download attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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 https://netcdn.xyz/app/479516143/free-minecraft-java-account-game-hack
    • http://1.179.208.67/ckfinder/userfiles/files/coin-master-tricks_GM406889139.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/spin-coin-master_GM406889139.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/free-spin-in-coin-master_GM406889139.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/is-it-possible-to-get-free-robux_GM431946152.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/minecraft-apk-114-4_GM479516143.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/blox-world-free-robux_GM431946152.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/coin-master-free-coins-generator_GM406889139.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/coin-master-free-spin-app-apk_GM406889139.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/get-robux_GM431946152.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/free-robux-websites-that-work_GM431946152.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/coin-master-hack-without-root_GM406889139.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/minecraft-free-download-unblocked_GM479516143.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/get-free-spins-for-coin-master_GM406889139.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/free-robux-websites-that-actually-work-2021_GM431946152.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/coin-master-free-redeem-code_GM406889139.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/how-to-hack-roblox-accounts-for-robux_GM431946152.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/how-to-get-free-robux-easy-2021_GM431946152.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/coin-master-free-link-facebook_GM406889139.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/can-i-get-free-robux_GM431946152.pdf
    • http://1.179.208.67/ckfinder/userfiles/files/how-to-change-your-name-in-roblox-for-free_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004ad6.bin
c028c789f2b950db04d398c7820e9e756c16b4b03bfa0a1c61a5dde1ab4b65cd
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AD6 24936 bytes
font_01_sfnt_off0000841a.bin
96a70491b0783ad8c6fc9b11a18f021aa22c69ac41ee4499b781d16a1b99b689
pdf-font-stream PDF embedded font (sfnt) at offset 0x841A 2820 bytes
font_02_sfnt_off00008dba.bin
ad2a0848393495eee102bd1b36be1bc15cd9afc8a8e02692ab65cad6db8d4212
pdf-font-stream PDF embedded font (sfnt) at offset 0x8DBA 18128 bytes