PDF malware analysis — malicious · 90e2a7e338bc5f80

MALICIOUS

PDF

42.0 KB Created: 2021-05-12 15:07:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c908700f50c1a0d80aa3f99483dea331 SHA-1: 094f53851f9b746d0b72f76dd38ac2da39a654f1 SHA-256: 90e2a7e338bc5f809d176a1c0f142980a9c5b97dc3636b36ec7977df254ddcac

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a call-to-action phrase, strongly suggesting a phishing or scam attempt. The document body and extracted URLs point towards lures for game cheats and virtual currency. The ML classifier also flagged this PDF as malicious with high confidence.

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/get-free-spins-coin-master-link-game-hack
- https://gaushalango.com/uploaded_files/userfiles/files/coin-master-free-daily-spins-link-2021_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/rbx-place-free-robux_GM431946152.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/how-to-really-hack-coin-master_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/coin-master-free-coins-amp_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-2021_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/coin-master-cards-for-free_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/coin-master-free-spins-apk_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/free-robux-no-human-verification_GM431946152.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/free-robux-for-kids-no-verification_GM431946152.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/hack-coin-master-spin_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/free-robux-scam_GM431946152.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/free-roblox-avatar_GM431946152.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/coin-master-online-hack-tool_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/coin-master-hacks-and-cheats_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/roblox-free-clothes-codes_GM431946152.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/how-to-get-free-roblox-gift-cards_GM431946152.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/moonactive-free-spins-2021_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/how-to-hack-coin-master-game-2021_GM406889139.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/roblox-character-free_GM431946152.pdf
- https://gaushalango.com/uploaded_files/userfiles/files/real-coin-master-hack-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_off00004b1e.bin` `77e4241e762c91e21e1557f2a86a315ff97ac737ac99b888018ddfed04d549de`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4B1E	24304 bytes
`font_01_sfnt_off0000828e.bin` `ab85056fbf29cd03dcfab7de7beb0343ed26656e2e8858e8ad52cb7aa31a5a92`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x828E	18056 bytes

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