PDF malware analysis — malicious · c37dc8040bd07b63

MALICIOUS

PDF

45.5 KB Created: 2021-05-17 20:54:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 5154f6b6d64c246fee6c9533b9cd416f SHA-1: 1f18a69fbbc381fc7151dd04263fa71d901ae9a2 SHA-256: c37dc8040bd07b639f0b1b5717ff302d2060874fd583c46e4a7e6a3e656b9c62

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links, identified as a link farm, pointing to sites offering game hacks and free currency for popular games like Coin Master and Roblox. The ML classifier strongly indicated maliciousness, and the presence of external URIs suggests a redirection to potentially malicious content or phishing pages. Although no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a lure to download further malicious content or visit a compromised site.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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/easy-free-spins-coin-master-game-hack
- https://www.alloywheels.in/uploaded_files/userfiles/files/how-to-get-free-robux-games_GM431946152.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/robux-gift-card-free_GM431946152.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/how-many-levels-does-coin-master-have_GM406889139.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/minecraft-java-edition-free-trial_GM479516143.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/free-spins-on-coin-master-2021_GM406889139.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/safe-hack-for-coin-master-android_GM406889139.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/scaffold-minecraft-hack_GM479516143.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/minecraft-windows-10-free-with-java_GM479516143.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/minecraft-for-macbook-free_GM479516143.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/free-roblox-followers_GM431946152.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/fighting-free-card-coin-master_GM406889139.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/coin-master-app_GM406889139.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/minecraft-dungeons-free-download-pc_GM479516143.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/coin-master-jackpot-madness-hack_GM406889139.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/free-coins-coin-master-2021_GM406889139.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/free-robux-mod_GM431946152.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/coin-master-free-spins-link-today-2021_GM406889139.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/minecraft-free-download-no-virus_GM479516143.pdf
- https://www.alloywheels.in/uploaded_files/userfiles/files/free-robux-app-real_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004cfd.bin` `c6c9cf79284c7fa4c2c0088efabb48ac843ae4ca0872e5410718ebecc7a13a06`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4CFD	24900 bytes
`font_01_sfnt_off00008561.bin` `2b5bcb60036e8604cee537a76a0c1d845177aa2c28f1eb7ce8b27015c89bb61f`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8561	18068 bytes
`font_02_sfnt_off0000a6b5.bin` `e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA6B5	3264 bytes

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