PDF malware analysis — malicious · 8d5990e5d8c6e8fc

MALICIOUS

PDF

45.0 KB Created: 2021-05-17 11:38:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: e4561fa31fe1cdc61211bbce1a163ae7 SHA-1: 7b5bcd09ebc6847da816ea35061f22efa4216029 SHA-256: 8d5990e5d8c6e8fc7f7e912213ca33fcd72c9d2486a981b64bb8623ae3ff87c3

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded links, many of which are SEO-optimized to appear as guides for obtaining free in-game currency or hacks for popular games like Coin Master and Minecraft. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such external links, suggesting a coordinated effort to direct users to potentially malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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-free-spins-youthnow-game-hack
- https://www.stadtbesichtigungen.de/images/como-hackear-coin-master-iphone_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/free-apk-mods-coin-master_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
- https://www.stadtbesichtigungen.de/images/coin-master-hack-mod-game-download_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/free-coins-and-spins-for-coin-master_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/minecraft-pe-015-0-apk-free-download_GM479516143.pdf
- https://www.stadtbesichtigungen.de/images/how-to-download-minecraft-for-free-on-android_GM479516143.pdf
- https://www.stadtbesichtigungen.de/images/hack-coin-master-game-download_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/spin-coin-master-free_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/free-things-on-roblox_GM431946152.pdf
- https://www.stadtbesichtigungen.de/images/minecraft-realms-free_GM479516143.pdf
- https://www.stadtbesichtigungen.de/images/free-spin-link-coin-master_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/how-to-make-a-minecraft-server-for-free_GM479516143.pdf
- https://www.stadtbesichtigungen.de/images/minecraft-hacks-xbox_GM479516143.pdf
- https://www.stadtbesichtigungen.de/images/give-me-robux_GM431946152.pdf
- https://www.stadtbesichtigungen.de/images/link-for-free-spins-on-coin-master_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/is-minecraft-free_GM479516143.pdf
- https://www.stadtbesichtigungen.de/images/coin-master-hack-with-facebook-login_GM406889139.pdf
- https://www.stadtbesichtigungen.de/images/minecraft-switch-free_GM479516143.pdf
- https://www.stadtbesichtigungen.de/images/free-robux-games-that-actually-work-2021_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_off000049de.bin` `56a5d87daf99a644c29d40524a1c67029da851139f867c8c3af7adbe6f5cf4a0`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x49DE	25068 bytes
`font_01_sfnt_off000082e6.bin` `29ffac6ae2c225ad742d302df2deaca7764d0abb58a6f2c81d3137a4f416ba07`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82E6	2880 bytes
`font_02_sfnt_off00008cd5.bin` `2d9e93df29aa51ca1a7d67cf2404b131feb62ab03f4d0f4d21f6bd2b7fc99d70`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CD5	18516 bytes

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