PDF malware analysis — malicious · 7c1ef319471a1557

MALICIOUS

PDF

45.5 KB Created: 2021-05-17 18:30:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 5a46e0c38e26d384a1c799c42f9ad6f4 SHA-1: d3159bb725c84240a5611d7abc8cccf94a6a3a63 SHA-256: 7c1ef319471a1557f8e50c99c55b7e9dad15383e87aa4c8b70c18cbdc141ac7e

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document was flagged as malicious by an ML classifier and contains a large number of external links, many of which are SEO-themed and point to game-related hacks and cheats. The document body explicitly mentions 'Coin Master Free Spins' and includes URLs that appear to be part of a link farm designed to attract users searching for such content. The primary intent appears to be directing users to potentially malicious or scam websites.

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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-free-spins-today-daily-links-game-hack
- https://my-private-intendant.com/images/hack-coin-master-for-free_GM406889139.pdf
- https://my-private-intendant.com/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdf
- https://my-private-intendant.com/images/claimrbx-free-robux_GM431946152.pdf
- https://my-private-intendant.com/images/free-spins-generated-from-coin-master_GM406889139.pdf
- https://my-private-intendant.com/images/minecraft-free-reddit_GM479516143.pdf
- https://my-private-intendant.com/images/coin-master-hacks-free-spins_GM406889139.pdf
- https://my-private-intendant.com/images/coin-master-hack-online-no-human-verification_GM406889139.pdf
- https://my-private-intendant.com/images/new-free-spins-coin-master_GM406889139.pdf
- https://my-private-intendant.com/images/robux-place-rewards_GM431946152.pdf
- https://my-private-intendant.com/images/como-hackear-coin-master-en-espaol_GM406889139.pdf
- https://my-private-intendant.com/images/coin-master-hack-version-2021_GM406889139.pdf
- https://my-private-intendant.com/images/free-robux-hack-no-human-verification_GM431946152.pdf
- https://my-private-intendant.com/images/wahoo-gaming-co-free-robux_GM431946152.pdf
- https://my-private-intendant.com/images/coin-master-spin-hack-2021_GM406889139.pdf
- https://my-private-intendant.com/images/how-to-get-800-robux-for-free_GM431946152.pdf
- https://my-private-intendant.com/images/free-daily-spins-coin-master-2021_GM406889139.pdf
- https://my-private-intendant.com/images/roblox-promo-codes-free-robux_GM431946152.pdf
- https://my-private-intendant.com/images/unlimited-coin-master-free-spins_GM406889139.pdf
- https://my-private-intendant.com/images/roblox-promo-codes-for-free-robux_GM431946152.pdf
- https://my-private-intendant.com/images/how-to-get-minecraft-pe-for-free-ios_GM479516143.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_off00004a6e.bin` `30466189b397a37abff429bec53bfd5ded8415ab452c17a2634dffa7b6e03b04`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A6E	25340 bytes
`font_01_sfnt_off00008352.bin` `52d597ff4b9023df6b3510b92f87dc1d2329aed0448bc9fa59130058567cb992`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8352	18652 bytes
`font_02_sfnt_off0000a67a.bin` `e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA67A	3264 bytes

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