Malicious PDF — malware analysis report

Static analysis result for SHA-256 6607a845e5924aff…

MALICIOUS

PDF

45.5 KB Created: 2021-05-12 15:12:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4674f80bb39c67a32c3759dfec1bb7ba SHA-1: 1e5e00a993916f564891415427c83ad7130b3fea SHA-256: 6607a845e5924afff5d6481bf5f9e14972b4b43e4f27c3a93e795b121b4f4be9
82 Risk Score

Malware Insights

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

The document presents a fake CAPTCHA to trick the user into interacting with a malicious link, likely leading to a download. The embedded URL and numerous other URLs found within the document body point to resources related to game hacks and free items, reinforcing the lure. No scripts were extracted, but the overall structure and heuristics strongly suggest a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/406889139/coin-master-daily-game-hack
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/coin-master-free-spins-link-march-2021_GM406889139.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/how-to-get-minecraft-for-free-on-computer_GM479516143.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/coin-master-free-spin-link-list_GM406889139.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/free-minecraft-skins-girl_GM479516143.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/roblox-font-free_GM431946152.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/60-free-spins-coin-master_GM406889139.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/minecraft-pocket-edition-free_GM479516143.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/free-minecraft-maps-pe_GM479516143.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/free-pet-treats-coin-master_GM406889139.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/is-there-an-actual-hack-that-work-for-coin-master_GM406889139.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/coin-master-unlimited-spin-link_GM406889139.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/coin-master-free-coins-and-spins-app_GM406889139.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/coin-master-support_GM406889139.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/roblox-promo-code-to-get-free-robux_GM431946152.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/free-coin-master-spins-and-coins_GM406889139.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/coinmaster-spin-ml-link_GM406889139.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id//repository/free-robux-generator_GM431946152.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/how-to-get-free-robux-on-mobile_GM431946152.pdf
    • https://digilib-ppkn.stkip-pgri-sumbar.ac.id/repository/minecraft-xbox-360-free-download-code_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004d28.bin
0809798b754b43c46527f4ad80ff6b9711f2641197f6b42040de57f1cab61a39		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D28 25480 bytes
font_01_sfnt_off00008660.bin
10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8660 2880 bytes
font_02_sfnt_off0000904b.bin
1c98f969960cfec6eaf841278575df19fc01610fe59bbf31221366f86d0cd1bd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x904B 17968 bytes

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