PDF malware analysis — malicious · a61a0564294d45bc

MALICIOUS

PDF

49.2 KB Created: 2021-05-15 23:34:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 66c6d5191bb14ed27d1b896ae77ab0e2 SHA-1: 6a7ddae7a45d1daadfad4b119e7ece4dbae8f438 SHA-256: a61a0564294d45bc311af15ed7452332f2cc0bbbdc5830c325b55dc9a1b99f00

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a large number of external links, identified as a PDF link farm, suggesting an attempt at SEO manipulation or directing users to potentially malicious content. The document body, though partially corrupted, contains a URL related to game hacks, reinforcing the lure. The presence of embedded URIs and the ML classifier's high confidence score indicate malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9228

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/how-do-you-get-roebucks-game-hack
- https://www.nonglong.go.th/ddd/UserFiles/File/how-to-get-robux-for-free-2021_GM431946152.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/chisel-and-bits-mod-pe_GM479516143.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/android-coin-master-hack-2021_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-strategy_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-free-gift-cards_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-pc-hack-download_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/hack-coin-pro-coin-master_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-free-daily-spins-and-coins_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-free-spins-gratis_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/is-minecraft-free-on-pc_GM479516143.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/how-to-change-your-name-in-roblox-for-free_GM431946152.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/how-to-get-free-skins-in-roblox_GM431946152.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-cheat-to-get-free-spins_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/roblox-studio-free-download_GM431946152.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/free-mods-for-coin-master_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-free-spins-link_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-hack-spin-link_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/tower-of-hell-roblox-hack_GM431946152.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/all-coin-master-spin-link-and-free-download_GM406889139.pdf
- https://www.nonglong.go.th/ddd/UserFiles/File/coin-master-hack-apk-35-18_GM406889139.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_off00004be4.bin` `8cca98526d0f8e19c0eaa984d751def922ff65f05fca97f6927d9d08c8ee638f`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BE4	28952 bytes
`font_01_sfnt_off000090a0.bin` `450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90A0	5696 bytes
`font_02_sfnt_off00009db2.bin` `ff346f93049ac2d3fb32d8a2c4dbad06720bfee6e4c1cdd193d0bff0cdbf25c6`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9DB2	18408 bytes

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