PDF malware analysis — malicious · dff832fe42ca4bae

MALICIOUS

PDF

43.7 KB Created: 2021-05-16 02:16:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: f9caa88f905254f785f38b2a98b9ebec SHA-1: 10a40ca1e05be3a84cb7ab5c688cfa0a0792b53b SHA-256: dff832fe42ca4baeab5e59566358346c55039f5773707a219c773edb171726a2

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous external links, many of which point to a link farm designed to host game-related cheat files. The presence of a "download button" lure and the ML classifier's high confidence score indicate a malicious intent to direct users to potentially harmful content. The document's content and structure strongly suggest a phishing or scam attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/406889139/coin-master-hack-safe-game-hack
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/coin-master-free-chip_GM406889139.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/toolbox-apk_GM479516143.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-promo-codes_GM431946152.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/how-to-get-free-minecraft-coins_GM479516143.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/cm-spin-link_GM406889139.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/can-you-give-me-robux_GM431946152.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/hack-coin-master-android-game_GM406889139.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/coin-master-daily-gift-free-spins-and-coins-link-today_GM406889139.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-iphone-2021_GM406889139.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/coin-master-hack-online-generator_GM406889139.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/coin-master-free-spins-app_GM406889139.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/minecraft-realms-free-trial_GM479516143.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/coin-master-daily-rewards-link_GM406889139.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/coin-master-heaven-free-spins_GM406889139.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/www-free-robux-com_GM431946152.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/how-to-get-free-robux-easy-hack_GM431946152.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/roblox-gift-card-for-free_GM431946152.pdf
- https://bengkellaskita.com/new/public/ckfinder/userfiles/files/coinmaster-spins_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004c4a.bin` `54722964878aa85bdae77b59376ea700f9b6f932f6f558a66fb14ef35c473924`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C4A	30416 bytes
`font_01_sfnt_off00008a0b.bin` `26f128ca3c3293ce89849f2e5b91572a6f078ece2e9d8c3dd3c383c333c33bcf`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A0B	17716 bytes

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