PDF malware analysis — malicious · ffc7d804d2fe6e09

MALICIOUS

PDF

38.1 KB Created: 2021-07-06 20:19:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 2e4ba75ed2ff454dfbb3552235e2f4d1 SHA-1: 17d99c884547c857863ec13816fb88dd8bb8896d SHA-256: ffc7d804d2fe6e09087f69f9ae8cebb482530f8e61fc749515294feadd79426b

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 0.9985

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-free-coins-no-human-verification-game-hack PDF link annotation
- https://www.jonaled.com/uploaded_files/userfiles/files/free-cursed-roblox-gear_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/can-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/hackear-coin-master_GM406889139.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/roblox-cheating-dll_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/free-robux-generator-quiz_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/how-to-hack-roblox-on-mobile_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/minecraft-pocket-edition-free-ios_GM479516143.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/coin-master-free-link_GM406889139.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/free-roblox-generator_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/hack-fool-roblox_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/hack-roblox-ipod_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/bux-fund-free-robux_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/this-server-is-hacked-sound-id-roblox_GM431946152.pdfIn PDF document text
- https://www.jonaled.com/uploaded_files/userfiles/files/freerbxinfo-for-free-robux_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_off00003c2f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3C2F	23732 bytes
SHA-256: `b542a911449e5fd2af57a942f754faa0e7443bc590e207bff89a35346c247be1`
`font_01_sfnt_off00007218.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7218	18532 bytes
SHA-256: `b4ac0924cc66402825594c2f273c2919cd313c472a67e40b1dcf3e4806c82e27`

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