PDF malware analysis — malicious · 32d0de58113dad87

MALICIOUS

PDF

46.8 KB Created: 2021-05-13 19:11:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 5ed97501a94418d25c0cbb636e38be81 SHA-1: c9ce33d76bdcadfc525659a53314ae223646ef63 SHA-256: 32d0de58113dad8709b095c4d1f7d2b6a068bf21485e160980ed75317bddd1d2

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'free Robux card codes' and game hacks, directing users to a suspicious URL. This is a common social engineering tactic to trick users into downloading malicious content or visiting scam websites. The ML classifier also flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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 https://netcdn.xyz/app/431946152/free-robux-card-codes-game-hack PDF link annotation
- https://cosmosocean.com.tw/upload/files/free-games-like-minecraft_GM479516143.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/mcpe-master-hack-unlimited-coins-latest-version_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-hacks-iphone_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/can-i-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/free-fire-coin-master_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/www-free-robux-com_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-free-spins-reddit_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/free-coin-master-links_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/free-coins-2021-coin-master-link_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/hack-coin-master-using-pc_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/roblox-arsenal-hacks-download_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000048f6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48F6	26676 bytes
SHA-256: `828aa630d76d144bb1efc19d130a69ea57996fb6c19277373013fd4e631395d1`
`font_01_sfnt_off00008716.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8716	3996 bytes
SHA-256: `db0c46653919699e9382fa1bdcc558f0e2417939f62e31ec1efeba7ae65f75c9`
`font_02_sfnt_off00009423.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9423	18416 bytes
SHA-256: `79c56a0f23d4fc34690a575a065be14b64911c3c5a3331038291264b4b7107af`

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