PDF malware analysis — malicious · 3e0b570bf81b1c1e

MALICIOUS

PDF

35.3 KB Created: 2021-07-04 05:23:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 040b6e73bcd4a97fa5d8b7d40006c1a6 SHA-1: 088fe53fdf77eb230063851bd61dc56b08becaaf SHA-256: 3e0b570bf81b1c1efc405f8aa49b40951ed97383a15ed4e288c63f202194ac45

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, identified as a link farm, pointing to external resources related to game cheats and virtual currency. The primary URL, http://netcdn.tw/app/406889139/free-spins-coins-coin-master-game-hack, suggests a lure for users seeking in-game advantages. While no scripts were explicitly extracted, the PDF structure and extensive external linking indicate a malicious workflow designed to redirect users to potentially harmful content.

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 http://netcdn.tw/app/406889139/free-spins-coins-coin-master-game-hack
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spin-best-link_GM406889139.pdf
- https://www.dc-itsolutions.com/userfiles/files/how-to-get-free-robux-for-real_GM431946152.pdf
- https://www.dc-itsolutions.com/userfiles/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdf
- https://www.dc-itsolutions.com/userfiles/files/hacks-and-cheats-for-coin-master_GM406889139.pdf
- https://www.dc-itsolutions.com/userfiles/files/free-robux-with-no-verification-2021_GM431946152.pdf
- https://www.dc-itsolutions.com/userfiles/files/coin-master-free-spins-link-download_GM406889139.pdf
- https://www.dc-itsolutions.com/userfiles/files/free-spins-coin-master-without-completing-offers_GM406889139.pdf
- https://www.dc-itsolutions.com/userfiles/files/minecraft-launcher-download-free_GM479516143.pdf
- https://www.dc-itsolutions.com/userfiles/files/roblox-comcom_GM431946152.pdf
- https://www.dc-itsolutions.com/userfiles/files/coin-master-hacks-no-human-verification_GM406889139.pdf
- https://www.dc-itsolutions.com/userfiles/files/free-coins-and-free-spins-coin-master-2021_GM406889139.pdf
- https://www.dc-itsolutions.com/userfiles/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdf
- https://www.dc-itsolutions.com/userfiles/files/get-free-robux-2021_GM431946152.pdf
- https://www.dc-itsolutions.com/userfiles/files/free-gamepasses-roblox-2021_GM431946152.pdf
- https://www.dc-itsolutions.com/userfiles/files/roblox-top_GM431946152.pdf
- https://www.dc-itsolutions.com/userfiles/files/free-spins-on-coin-master-iphone_GM406889139.pdf
- https://www.dc-itsolutions.com/userfiles/files/roblox-god-simulator-hack_GM431946152.pdf
- https://www.dc-itsolutions.com/userfiles/files/hack-vampire-hunters-2-roblox-fly_GM431946152.pdf
- https://www.dc-itsolutions.com/userfiles/files/free-robux-2021-xyz_GM431946152.pdf
- https://www.dc-itsolutions.com/userfiles/files/tiktok-followers-for-free_GM835599320.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_002_off0000327f.bin` `80d19fa72fdabc9dea16349d9185fd1200ea5e91921991447385f26a3b9a9076`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x327F	23496 bytes
`font_01_sfnt_off00006785.bin` `e8ec895f495d139acdb298d515a7ca0fffd25b58e102aa71b0a100d8abb1bbce`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6785	18176 bytes

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