Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c7877e213a32beb…

MALICIOUS

PDF

47.2 KB Created: 2021-05-11 03:03:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 46317d3a03705c639ee5e0bd3c954f94 SHA-1: 258cde93dc27cd1755d2b22f0b5fff4def6870aa SHA-256: 6c7877e213a32beb529a109e3c7586cf4a73085bbd5c6e88712b5bf8917f6166
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA and a call-to-action to trick users into clicking a link, which is a common social engineering tactic. The embedded URL and numerous other URLs found in the document body point to sites offering game cheats and hacks, suggesting the document's purpose is to lead users to potentially malicious downloads or exploit kits. No scripts were extracted, but the PDF structure and embedded URLs strongly indicate a malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9977

Heuristics 4

  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/431946152/free-robux-pin-codes-game-hack
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/scaffold-minecraft-hack_GM479516143.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-free-cards-in-coin-master_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-cards-hack_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-free-attack-link_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/wurst-hacked-client_GM479516143.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-coin-and-spin-in-coin-master_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/robux-miner_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-free-spins-ios_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-robux-wheel_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-robux-please_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/mcpe-master-coins-hack_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/minecraft-windows-10-edition-hacks_GM479516143.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-free-coins-link-blogspot_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-roblox-hair-codes_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-heaven-free-spins-link_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/free-robux-co_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/how-to-get-free-robux-website_GM431946152.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/does-coin-master-hack-work_GM406889139.pdf
    • https://darulfalah-tulungagung.com/__statics/gudangsoal/files/coin-master-time-hack-ios_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c71.bin
6b5c967e86e2cc119f01212082a36b4ec506e6f16267ac5b6c0087fc816e60a8		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C71 31452 bytes
font_01_sfnt_off0000964c.bin
23872266a6577b01853888d52c04c526ac323517b7f86f8cb64f3b9e81653507		 pdf-font-stream PDF embedded font (sfnt) at offset 0x964C 18464 bytes

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