PDF malware analysis — malicious · c3d91224d2db1f4b

MALICIOUS

PDF

34.6 KB Created: 2021-07-06 05:17:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 83a7b0726b9985607658458f4b7f60a2 SHA-1: 3cc98b54b239709421edc6427f3c4c43653f9423 SHA-256: c3d91224d2db1f4bd7e4fdfacc668586c5fc42bfb00468fe70080e6072b76631

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free in-game currency to entice users to click on embedded links. The primary malicious link identified is http://netcdn.tw/app/406889139/coin-master-ad-game-hack, which likely leads to a phishing site or a download of further malware. The document's structure and embedded URLs strongly suggest a social engineering tactic to compromise users.

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/406889139/coin-master-ad-game-hack PDF link annotation
- https://www.ferraroni.net/public/risorse/ck/files/robux-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/roblox-escape-games-free_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-robux-legal-2021_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/how-to-get-free-hair-in-roblox_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/roblox-cbro-hacks-2021_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/how-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/roblox-fashion-frenzy-games-free-online_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/how-to-find-roblox-in-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-roblox-group-payouts_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/i-think-someone-tried-to-hacked-my-roblox-account_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/free-robux-gui_GM431946152.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/coin-master-heaven_GM406889139.pdfIn PDF document text
- https://www.ferraroni.net/public/risorse/ck/files/roblox-hack-lumber-tycoon-2script-inserter_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
`stream_002_off00003138.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3138	23384 bytes
SHA-256: `28969aab1d81801c36462c484fde3d6a1fe5db5efd67b4fca751a17cdd97e14d`
`font_01_sfnt_off0000656a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x656A	18008 bytes
SHA-256: `93b7dc2fd31d097fadffeac7d444a32e6f7bb9136229f390d1dbe79aaa2db717`

Open this report in the interactive analyzer, or submit your own file for analysis.