PDF malware analysis — malicious · e7acebbf39a68ea4

MALICIOUS

PDF

45.3 KB Created: 2021-06-10 20:40:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 84214422b27010942b401c2ec571acee SHA-1: 7a95c28ec4239100951cb7b4a85a2924bae4bf2d SHA-256: e7acebbf39a68ea45c269051105db8c0210c10f3c982ae658478cfe1a2de652d

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains a large number of embedded links, many of which are presented as download buttons for game hacks and cheats. The PDF_SEO_LINK_FARM heuristic indicates a mass of external PDF links, suggesting a link farm designed to drive traffic to potentially malicious content. The ML_NYX_PDF_MALICIOUS classifier also flagged this document with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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.tw/app/431946152/roblox-assassin-hacks-2021-game-hack
- http://tehergumi.hu/images/roblox-hack-download_GM431946152.pdf
- http://tehergumi.hu/images/how-to-hack-elemental-battle-grounds-roblox_GM431946152.pdf
- http://tehergumi.hu/images/how-to-hack-roblox-games_GM431946152.pdf
- http://tehergumi.hu/images/telecharger-roblox-booga-booga-hack-le-meilleur_GM431946152.pdf
- http://tehergumi.hu/images/claim-free-spins-coin-master_GM406889139.pdf
- http://tehergumi.hu/images/robux-hack-android-no-verification_GM431946152.pdf
- http://tehergumi.hu/images/free-robux-with-no-human-verification_GM431946152.pdf
- http://tehergumi.hu/images/minecraft-tiktok-hacks_GM479516143.pdf
- http://tehergumi.hu/images/free-hair-roblox_GM431946152.pdf
- http://tehergumi.hu/images/20210-free-spin-links-for-coin-master_GM406889139.pdf
- http://tehergumi.hu/images/free-robux-no-verify_GM431946152.pdf
- http://tehergumi.hu/images/free-robux-generator-without-verification_GM431946152.pdf
- http://tehergumi.hu/images/how-to-get-free-robux-on-ipad_GM431946152.pdf
- http://tehergumi.hu/images/coin-master-free-spins-daily_GM406889139.pdf
- http://tehergumi.hu/images/robux-win_GM431946152.pdf
- http://tehergumi.hu/images/free-robux-easy_GM431946152.pdf
- http://tehergumi.hu/images/coin-master-spin-and-coins-free_GM406889139.pdf
- http://tehergumi.hu/images/how-to-hack-roblox-to-get-robux_GM431946152.pdf
- http://tehergumi.hu/images/roblox-membership-hack_GM431946152.pdf
- http://tehergumi.hu/images/how-to-get-free-robux-on-roblox-october-2021_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_004_off00005100.bin` `4d2127a7afe59d3f206e7e33f83380ef2aa9be4000952bfc211bb31c0d69bcb7`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5100	26036 bytes
`font_01_sfnt_off00008cf0.bin` `4bf27753f24ea651548757ae5c22a2db50a6192bb64424b738798e31a2acaef8`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8CF0	18704 bytes

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