PDF malware analysis — malicious · 13bd70a7a9e1d37e

MALICIOUS

PDF

43.0 KB Created: 2021-05-20 00:13:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: ee47948b5f66b4dacf962abd174792f8 SHA-1: b8fb0a9b4f34f21aa62ff50db505195ada825ec0 SHA-256: 13bd70a7a9e1d37e6868d3606277b4404d5e9095572f4c7d30691f523ec8fcb6

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a large number of external links, many of which are related to game hacks and cheats, indicating a lure for potentially malicious content. The ML classifier also flagged this PDF as malicious with high confidence. The document body and extracted URLs suggest a social engineering attempt to direct users to sites offering game exploits or cheats.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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-gold-cards-hack-game-hack
- https://key8013805.com.tw/upload/files/can-you-give-me-robux_GM431946152.pdf
- https://key8013805.com.tw/upload/files/free-robux-games-on-roblox_GM431946152.pdf
- https://key8013805.com.tw/upload/files/is-there-a-free-version-of-minecraft_GM479516143.pdf
- https://key8013805.com.tw/upload/files/free-coin-coin-master_GM406889139.pdf
- https://key8013805.com.tw/upload/files/minecraft-hacks-pc_GM479516143.pdf
- https://key8013805.com.tw/upload/files/coin-master-free-spins-hack-ios_GM406889139.pdf
- https://key8013805.com.tw/upload/files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdf
- https://key8013805.com.tw/upload/files/coin-master-free-mighty-lion-card_GM406889139.pdf
- https://key8013805.com.tw/upload/files/minecraft-world-free-download_GM479516143.pdf
- https://key8013805.com.tw/upload/files/codes-how-to-get-free-robux_GM431946152.pdf
- https://key8013805.com.tw/upload/files/how-to-get-free-unlimited-robux_GM431946152.pdf
- https://key8013805.com.tw/upload/files/pokemon-go-update-free-download_GM1094591345.pdf
- https://key8013805.com.tw/upload/files/hacks-for-roblox-prison-life_GM431946152.pdf
- https://key8013805.com.tw/upload/files/free-robux-websites-that-work_GM431946152.pdf
- https://key8013805.com.tw/upload/files/hack-robux_GM431946152.pdf
- https://key8013805.com.tw/upload/files/coin-master-spin-link-today_GM406889139.pdf
- https://key8013805.com.tw/upload/files/free-robux-hack-2021_GM431946152.pdf
- https://key8013805.com.tw/upload/files/robux-matchcomfree-robux_GM431946152.pdf
- https://key8013805.com.tw/upload/files/minecraft-free-trial_GM479516143.pdf
- https://key8013805.com.tw/upload/files/roblox-avatar-editor-free_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_off000048e0.bin` `22d97d9fa72359f54234e35260cec5c2bcdc654084459c200d13109f08b48a91`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48E0	26720 bytes
`font_01_sfnt_off0000869f.bin` `adb4edbf0c57abdeeb225f0bd422abdfe2e9b1ff4eb8b752c2c204cd3e2141b0`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x869F	17964 bytes

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