PDF malware analysis — malicious · e6cea18fb87396ff

MALICIOUS

PDF

45.8 KB Created: 2021-06-07 19:43:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: ca65dd3f2168291c9a165141786d0566 SHA-1: a67a3492baaccb5bdea718d4b72445a938b3eb3c SHA-256: e6cea18fb87396ffbc7274f61d932b08a3249a27f5dcbe392395ca4266f7520b

90 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The document uses a lure related to free in-game currency and hacks, combined with urgency and a call-to-action button, to trick users into clicking a malicious link. The presence of embedded JavaScript and multiple external URLs suggests an attempt to download a second-stage payload or redirect to a phishing site. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

Heuristics 5

MFA / one-time-code harvesting lure high SE_MFA_LURE

Document asks for a one-time code, authenticator approval, or MFA confirmation — consistent with credential phishing kits that steal session tokens or abuse multi-factor authentication
Urgency / deadline lure low SE_URGENCY_LURE

Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
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/add-free-robux-pastebin-game-hack
- https://www.stayon.no/images/coin-master-spin-link-free-download_GM406889139.pdf
- https://www.stayon.no/images/tower-of-hell-roblox-hack_GM431946152.pdf
- https://www.stayon.no/images/roblox-www-com_GM431946152.pdf
- https://www.stayon.no/images/how-to-o-get-free-coin-master-spins_GM406889139.pdf
- https://www.stayon.no/images/descargar-coin-master-hackeado_GM406889139.pdf
- https://www.stayon.no/images/coin-master-free-online-game_GM406889139.pdf
- https://www.stayon.no/images/coin-master-heaven-free-spins-today_GM406889139.pdf
- https://www.stayon.no/images/how-to-get-free-robux-without-verification_GM431946152.pdf
- https://www.stayon.no/images/free-robux-codes-2021-not-used_GM431946152.pdf
- https://www.stayon.no/images/apps-that-give-you-free-robux_GM431946152.pdf
- https://www.stayon.no/images/robux-hack-no-verification_GM431946152.pdf
- https://www.stayon.no/images/coin-master-hack-apk-33-download_GM406889139.pdf
- https://www.stayon.no/images/free-robux-hack_GM431946152.pdf
- https://www.stayon.no/images/free-robux-with-no-verification_GM431946152.pdf
- https://www.stayon.no/images/best-site-for-free-coin-master_GM406889139.pdf
- https://www.stayon.no/images/minecraft-free-trial_GM479516143.pdf
- https://www.stayon.no/images/how-to-get-roebucks-on-roblox_GM431946152.pdf
- https://www.stayon.no/images/coin-master-free-bonus_GM406889139.pdf
- https://www.stayon.no/images/roblox-a_GM431946152.pdf
- https://www.stayon.no/images/coin-master-free-spins-link-2021_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000511d.bin` `d541851b9ad007f5180b1d8c036ffe9b1b077be00bd8949ae1bc317504a50a99`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x511D	27220 bytes
`font_01_sfnt_off00008f21.bin` `c74f86634fa4dcc95a67e96d66f56fb0b9da5260e0b5c6d3ed0108d04feea1c8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F21	18796 bytes

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