PDF malware analysis — malicious · baed4f55eb0d56ab

MALICIOUS

PDF

44.7 KB Created: 2021-06-03 10:56:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: a44cb8afd6dfab98e38dbdfc39f5f1e5 SHA-1: 07a6fb1710d626bad9fe25c640c6d6a1740c93b2 SHA-256: baed4f55eb0d56ab731458c271f7ac380ce07b0cf7ae3d33fe86488df4cba538

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous links to external PDFs, many of which are SEO-optimized and suggest game hacks or cheats. The primary URL points to a "coin-master-hack" download. This indicates a likely attempt to lure users to download malicious content disguised as game cheats. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/coin-master-hack-spins-download-game-hack
- http://library.yamasi.ac.id/repository/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdf
- http://library.yamasi.ac.id//repository/free-mod-apk-coin-master_GM406889139.pdf
- http://library.yamasi.ac.id/repository/coin-master-hack-progamers_GM406889139.pdf
- http://library.yamasi.ac.id//repository/coin-master-hack-2021-app-download_GM406889139.pdf
- http://library.yamasi.ac.id/repository/how-to-hack-coin-master-with-root_GM406889139.pdf
- http://library.yamasi.ac.id//repository/real-working-coin-master-hack_GM406889139.pdf
- http://library.yamasi.ac.id//repository/cheat-codes-for-coin-master_GM406889139.pdf
- http://library.yamasi.ac.id//repository/roblox-generator_GM431946152.pdf
- http://library.yamasi.ac.id/repository/free-spins-on-coin-master-2021_GM406889139.pdf
- http://library.yamasi.ac.id/repository/coin-master-mod-apk-hack_GM406889139.pdf
- http://library.yamasi.ac.id//repository/free-minecraft-domain_GM479516143.pdf
- http://library.yamasi.ac.id/repository/coin-master-hack-link-2021_GM406889139.pdf
- http://library.yamasi.ac.id/repository/coin-master-free-spins-daily-2021_GM406889139.pdf
- http://library.yamasi.ac.id//repository/free-coins-coin-master-link_GM406889139.pdf
- http://library.yamasi.ac.id//repository/op-rewards-free-robux_GM431946152.pdf
- http://library.yamasi.ac.id/repository/coin-coin-master-hack_GM406889139.pdf
- http://library.yamasi.ac.id//repository/how-to-hack-people-in-roblox_GM431946152.pdf
- http://library.yamasi.ac.id/repository/coin-master-free-spins-ios_GM406889139.pdf
- http://library.yamasi.ac.id/repository/free-minecraft-games-for-kids_GM479516143.pdf
- http://library.yamasi.ac.id/repository/free-spin-coin-master-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_004_off0000525b.bin` `2813e58643c0951a25583a067d1b63f6d7622e187cbae440da60ddf75881888e`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x525B	25196 bytes
`font_01_sfnt_off00008b7c.bin` `ffdd1f544133aaa986ff11dc6bde1115101e3f500a02a81e5d1fa021c7bacaca`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B7C	18472 bytes

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