PDF malware analysis — malicious · 33f5be5d249e2eb9

MALICIOUS

PDF

43.3 KB Created: 2021-05-19 14:40:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: eb3c5d01cae04ac3a51b18ccc8a08eae SHA-1: 484f11b9940913f6d14bd773b3a9e206ee4f05d6 SHA-256: 33f5be5d249e2eb931b0ce6d071eef2a22447e73d9a4809224fb5cd7e00f7012

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 0.9969

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.xyz/app/406889139/coin-master-free-coins-and-spins-daily-game-hack PDF link annotation
- http://allcenterdistribuidora.com.br/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/coin-master-hack-tuts_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/how-can-you-get-free-robux_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/coin-master-unlimited-spin-hack_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/wurst-minecraft_GM479516143.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/minecraft-hack-client-download_GM479516143.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/play-coin-master-for-free_GM406889139.pdfIn PDF document text
- http://allcenterdistribuidora.com.br/files/roblox-fly-hack_GM431946152.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_003_off00004a37.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A37	26784 bytes
SHA-256: `e578226d40082f6d3e35efd5338525314714a1ac9d391f229ff1f4a903a4fe3b`
`font_01_sfnt_off00008641.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8641	18480 bytes
SHA-256: `afe33923ca989cd5d8a4fb240de59bbfcccaf1928071fdd0e6e63d3de042dc3b`

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