PDF malware analysis — malicious · 55927e36dc9ec468

MALICIOUS

PDF

46.9 KB Created: 2021-05-13 17:38:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 8d017f86c8175840a80da28f54c17f74 SHA-1: a9f0aa5e3e66bb134bf01d4509797ceaa7318618 SHA-256: 55927e36dc9ec46836b519525a15c56b78a6011935c2e0947eed13abb3531866

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains numerous external links, many of which point to pages offering game hacks and cheats, suggesting a lure for users to download potentially malicious files. The presence of a 'download button' heuristic further supports this malicious intent. The ML classifier also flagged this PDF as malicious with a high score.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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/479516143/minecraft-hax-download-no-virus-game-hack
- https://www.anders-sofa.com.tw/uploadpic/files/free-modded-minecraft-server-hosting_GM479516143.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/robux-matchcomfree-robux_GM431946152.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/coin-master-free-spins-hack-link_GM406889139.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/games-on-roblox-that-give-you-free-robux_GM431946152.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/coin-master-free-coins-amp_GM406889139.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/roblox-printables-free_GM431946152.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/how-to-get-free-robux-on-pc_GM431946152.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/coin-master-free-spins-link-today-facebook_GM406889139.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/free-robux-generator-no-human-verification-2021_GM431946152.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/spin-coin-master-hack_GM406889139.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/free-roblox-accounts-with-robux-that-work-not-banned-2021_GM431946152.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/get-me-robux_GM431946152.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/can-you-get-minecraft-for-free-on-pc_GM479516143.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/minecraft-pe-hacks-2021_GM479516143.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/coin-master-free-spins-app_GM406889139.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/100-free-spins-coin-master_GM406889139.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/coin-drop-master-free_GM406889139.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/coin-master-hack-spin-generator-tool_GM406889139.pdf
- https://www.anders-sofa.com.tw/uploadpic/files/coin-master-free-spins-promo-code_GM406889139.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_off000050be.bin` `188bcbc76995504656f103a1fe0673e5ce0a63869ff6f92e45cab18ac87b1a97`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x50BE	25268 bytes
`font_01_sfnt_off000089b2.bin` `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x89B2	2840 bytes
`font_02_sfnt_off00009364.bin` `c700757df4146bcd75611d33c41ed0aca4ff62925dbc333fb331944c4ea3b8c9`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9364	18772 bytes

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