PDF malware analysis — malicious · cb3e86c543204195

MALICIOUS

PDF

45.5 KB Created: 2021-06-03 19:34:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: a2293b5032d3d8dc1e942af8d6cbe397 SHA-1: ab607a43e8d404e1dd0563baec6653d4da47ec5d SHA-256: cb3e86c5432041950999057cb3fbb1a0ead19681b392cac6499b1cb104f4ea11

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

Heuristics 4

PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE

PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
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-daily-gift-free-spins-and-coins-link-today-game-hack PDF link annotation
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/roblox-army-robux_GM431946152.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/coin-master-32-mod-hack-unlimited_GM406889139.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/free-promo-codes-for-robux_GM431946152.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/how-to-buy-robux-for-free_GM431946152.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/roblox-svg-free_GM431946152.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/coin-master-game-hack-version-download_GM406889139.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/coin-master-free-spins-no-survey_GM406889139.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/abd-roblox_GM431946152.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/coin-master-2021_GM406889139.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/is-there-any-tricks-or-working-hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/free-spins-coin-master-daily_GM406889139.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/free-coin-master-spins-link-download_GM406889139.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/hack-coin-master-download-ios_GM406889139.pdfIn PDF document text
- https://e-learning.mtsdditakkalasi.com/__statics/gudangsoal/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000053c6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x53C6	25664 bytes
SHA-256: `34970b78ef136a44dad32e7f8d1162623d7e1b2cc024cd8480c49a72aecb8536`
`font_01_sfnt_off00008e2a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E2A	18652 bytes
SHA-256: `acc88e8ff3d4d09cb66d664b97f6065b804d1ea0ab1b79688b3054775362f50f`

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