PDF malware analysis — malicious · ae3f3ed9d1a219fb

MALICIOUS

PDF

43.7 KB Created: 2021-05-13 20:34:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 36c2b3cb53b887d28eae54bdab2958bc SHA-1: 70beb163ba0f42803f8af33027d2fa7f68bc7432 SHA-256: ae3f3ed9d1a219fb1082efb606992d49ca4a4b6335c21f367223393d8113a375

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a large number of links to external websites, many of which appear to be SEO link farms for free in-game items. The primary URL, https://netcdn.xyz/app/431946152/free-roblox-groups-with-funds-game-hack, suggests a lure for game-related scams. The ML classifier strongly flagged this PDF as malicious, indicating a high probability of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/free-roblox-groups-with-funds-game-hack
- https://www.bmta.co.uk/images/free-spins-coin-master-links-2021_GM406889139.pdf
- https://www.bmta.co.uk/images/free-robux-no-verification-at-all_GM431946152.pdf
- https://www.bmta.co.uk/images/free-spins-coins-coin-master_GM406889139.pdf
- https://www.bmta.co.uk/images/coin-master-free-coins-amp_GM406889139.pdf
- https://www.bmta.co.uk/images/coin-master-free-spin-redeem-code_GM406889139.pdf
- https://www.bmta.co.uk/images/level-coin_GM406889139.pdf
- https://www.bmta.co.uk/images/free-robux-no-human-verification-or-survey_GM431946152.pdf
- https://www.bmta.co.uk/images/online-hacking-tricks-coin-master_GM406889139.pdf
- https://www.bmta.co.uk/images/free-robux-working_GM431946152.pdf
- https://www.bmta.co.uk/images/free-spins-coin-master-links-blogspot_GM406889139.pdf
- https://www.bmta.co.uk/images/free-spins-coin-master-facebook_GM406889139.pdf
- https://www.bmta.co.uk/images/wwwcoin-master-hack-apk_GM406889139.pdf
- https://www.bmta.co.uk/images/coin-master-free-spins-april-2021_GM406889139.pdf
- https://www.bmta.co.uk/images/robux-com-free_GM431946152.pdf
- https://www.bmta.co.uk/images/minecraft-hacks-18-9_GM479516143.pdf
- https://www.bmta.co.uk/images/hack-xp-net-generators-coin-master_GM406889139.pdf
- https://www.bmta.co.uk/images/free-cracked-minecraft-server-hosting_GM479516143.pdf
- https://www.bmta.co.uk/images/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdf
- https://www.bmta.co.uk/images/coin-master-links-for-today_GM406889139.pdf
- https://www.bmta.co.uk/images/coin-master-free-spins-2021_GM406889139.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_off00004917.bin` `8889626a95d82f30e2416dba84366af5b2f37d4eafded8c94d575534c657d543`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4917	26384 bytes
`font_01_sfnt_off0000862d.bin` `3400496694c4b95422a50533d9ab07e9ced2fd8b85931bd61225c3b69c3e3d7c`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x862D	19028 bytes

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