PDF malware analysis — malicious · 4d6c935a3a1eca57

MALICIOUS

PDF

45.2 KB Created: 2021-05-15 23:33:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 42135b035b712293963d9e1cb451c26c SHA-1: 8506d6b241c370b3335df69c88deb7a6ecf34c06 SHA-256: 4d6c935a3a1eca5726beb2de4a1f22d99097c6c7a75421814ccb65a0e92de250

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, many of which are SEO-optimized and point to resources related to free game currency or cheats. The ML classifier strongly indicated maliciousness, and the presence of numerous links suggests a link farm designed to redirect users to potentially malicious sites or phishing pages. The document body, though heavily obfuscated, contains a URL that aligns with the link farm's theme.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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/431946152/games-to-get-free-robux-game-hack
- http://elitesoftsolutions.com/images/free-coins-for-coin-master_GM406889139.pdf
- http://elitesoftsolutions.com/images/coin-master-apk_GM406889139.pdf
- http://elitesoftsolutions.com/images/new-free-spins-coin-master_GM406889139.pdf
- http://elitesoftsolutions.com/images/how-to-get-free-robux-app_GM431946152.pdf
- http://elitesoftsolutions.com/images/coin-master-real-free-spins_GM406889139.pdf
- http://elitesoftsolutions.com/images/can-you-get-free-robux-on-roblox_GM431946152.pdf
- http://elitesoftsolutions.com/images/free-minecraft-windows-10-with-java_GM479516143.pdf
- http://elitesoftsolutions.com/images/how-to-get-free-robux-on-mobile_GM431946152.pdf
- http://elitesoftsolutions.com/images/coin-master-free-spin-now_GM406889139.pdf
- http://elitesoftsolutions.com/images/how-to-get-minecraft-for-free-on-xbox-360_GM479516143.pdf
- http://elitesoftsolutions.com/images/free-robux-mobile_GM431946152.pdf
- http://elitesoftsolutions.com/images/tryrbx-site-free-robux_GM431946152.pdf
- http://elitesoftsolutions.com/images/free-coins-on-coin-master_GM406889139.pdf
- http://elitesoftsolutions.com/images/coin-master-club-hack_GM406889139.pdf
- http://elitesoftsolutions.com/images/get-me-free-robux_GM431946152.pdf
- http://elitesoftsolutions.com/images/free-minecraft-java-server_GM479516143.pdf
- http://elitesoftsolutions.com/images/coin-master-hacks-for-android_GM406889139.pdf
- http://elitesoftsolutions.com/images/minecraft-login-free_GM479516143.pdf
- http://elitesoftsolutions.com/images/how-to-hack-coin-master-using-es-file_GM406889139.pdf
- http://elitesoftsolutions.com/images/free-robux-pastebin_GM431946152.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_off0000497c.bin` `b1501004c65872eba3949f5c3ab74ad8d659a1bbd69167832c497c34c51d116c`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x497C	29148 bytes
`font_01_sfnt_off00008d9b.bin` `08e91301afb793f0c8f569168ad93911c90315771ef2b58170e32493949df7cc`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D9B	18608 bytes

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