PDF malware analysis — malicious · 9cdc63729fa48d87

MALICIOUS

PDF

36.7 KB Created: 2021-07-03 15:06:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: 76fd91ff9c4976900eef05c393b6c7c2 SHA-1: 6210a7072a01b4cbf386131ea463f685a999bba1 SHA-256: 9cdc63729fa48d879b925ffb8171c163850191237ac41dea0e58968e0d1f6552

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
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 http://netcdn.tw/app/431946152/how-to-change-roblox-username-for-free-2021-game-hack PDF link annotation
- https://www.midrarreservations.com/uploaded_files/userfiles/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/5-hacks-in-roblox-games_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/roblox-svg-free_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/minecraft-112-2-hacked-client_GM479516143.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/2021-roblox_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/free-robux-pastebin-2021_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/roblox-dungeon-quest-money-hack_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/spin-link-coin-master_GM406889139.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/best-legit-free-robux_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/how-to-play-minecraft-online-for-free_GM479516143.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/how-to-create-a-vip-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/mistplay-robux_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/robux-free-online_GM431946152.pdfIn PDF document text
- https://www.midrarreservations.com/uploaded_files/userfiles/files/cheat-engine-gui-roblox_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00003584.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3584	22892 bytes
SHA-256: `7c1329545951e29a467c66d3d541a7e828826867109abd783aadd1aea1af805e`
`font_01_sfnt_off000068f3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68F3	19644 bytes
SHA-256: `4b774c189f9136f23661d737726efe76a6ad5d4a04d9a85acf723e4c99e8a07e`

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