PDF malware analysis — malicious · 0a2417129f53641c

MALICIOUS

PDF

48.5 KB Created: 2021-06-10 15:46:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: 0ec993109ef7ad3448e8a2904fb46164 SHA-1: 693bb3e144dc54a96411601519eb29cdcad0aaf3 SHA-256: 0a2417129f53641cbfbbb92dff536df0e64f39cbad8301f67ac9cc62b87a94bb

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The document displays a fake CAPTCHA to lure the user into clicking a link, which is a common social engineering tactic. The embedded URL points to a resource that is likely a payload or further exploit. The ML classifier also flagged this PDF as malicious, increasing confidence in its malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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.tw/app/431946152/cheat-aimbot-roblox-game-hack PDF link annotation
- https://kupinapopust.mk/pub/img/userfiles/files/how-to-build-hacks-in-roblox_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-rewards_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/hack-coin-master-apk-mod_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/conseguir-robux-en-roblox-hack-website_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/tiktok-free-anime-websites_GM835599320.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/hack-inventary-roblox_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-roblox-account-generator_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/how-to-get-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-robux-ipad-2021_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/real-free-robux-generator_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/roblox-theme-park-tycoon-2-money-hack_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/free-robux-no-scam_GM431946152.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/how-to-hack-minecraft-pe_GM479516143.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
- https://kupinapopust.mk/pub/img/userfiles/files/how-to-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off0000506b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x506B	26136 bytes
SHA-256: `dd7c40cfcb362adea0a4c67e74275f8293498b23059bd75aad4512df9716ded0`
`font_01_sfnt_off00008d4a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D4A	3884 bytes
SHA-256: `40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf`
`font_02_sfnt_off000099f1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x99F1	18660 bytes
SHA-256: `5a254df9df963563240542f688738dfe0878035259b7c32471458a16ee86680b`

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