PDF malware analysis — malicious · dde6d593146bb911

MALICIOUS

PDF

41.9 KB Created: 2021-05-10 18:35:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 988cc3b4b0274c68089a9aa4d98609c6 SHA-1: 6f458bda4b49a82ed7ea5070feb714d479ce2fc2 SHA-256: dde6d593146bb911cd945501ce7008ac73377bca0c6015f59087d8c7ed82b9d9

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

This PDF document was flagged as malicious by an ML classifier. It uses a QR-code lure. 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 0.9979

Heuristics 5

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.
QR-code redirect lure medium SE_QR_LURE

Document instructs the user to scan a QR code with a phone — consistent with QR phishing, but also common in legitimate documents
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.xyz/app/479516143/minecraft-bedrock-edition-pc-free-game-hack PDF link annotation
- https://arcasict.nl/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
- https://arcasict.nl/images/minecraft-windows-10-edition-hacked-client_GM479516143.pdfIn PDF document text
- https://arcasict.nl/images/how-to-make-a-private-server-on-roblox-for-free_GM431946152.pdfIn PDF document text
- https://arcasict.nl/images/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://arcasict.nl/images/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://arcasict.nl/images/coin-master-free-spins-daily-2021_GM406889139.pdfIn PDF document text
- https://arcasict.nl/images/roblox-comroblox_GM431946152.pdfIn PDF document text
- https://arcasict.nl/images/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- https://arcasict.nl/images/robux_GM431946152.pdfIn PDF document text
- https://arcasict.nl/images/roblox-system_GM431946152.pdfIn PDF document text
- https://arcasict.nl/images/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
- https://arcasict.nl/images/coin-master-free-spins-facebook_GM406889139.pdfIn PDF document text
- https://arcasict.nl/images/coin-master-hack-game-download-ios_GM406889139.pdfIn PDF document text
- https://arcasict.nl/images/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
- https://arcasict.nl/images/earn-robux-today_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_003_off00004777.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4777	25400 bytes
SHA-256: `d26db5f75ac4792ce7cec7ff966c8a20c0b115de9766f89b7267886b24c418cd`
`font_01_sfnt_off00008192.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8192	18424 bytes
SHA-256: `b5a3fec1d7f3ae012b17f1950b72f1e02224ae7313c4d9c9d68c8b40b26cb064`

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