PDF malware analysis — malicious · f6a4e72830b746ce

MALICIOUS

PDF

46.6 KB Created: 2021-05-14 10:00:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: c3bf92eb65d07f913ec814c273ea4988 SHA-1: 5955b1efc326bd5fe29361e824b850ef14b33918 SHA-256: f6a4e72830b746ce11133e68ebaf19252225ed1601de6da853a76c4075330ef0

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 0.8948

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-hack-co-game-hack PDF link annotation
- https://vierabyragazze.com/upload/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-windows-10-edition-hacks_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/how-to-hack-coin-master-android_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-com-free_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/how-to-get-minecraft-bedrock-edition-on-pc-for-free_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-twitter-free-spins_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/hack-coin-master-android-2021_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/robux-come_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-demon_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-admin-free-spins_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/hack-coin-master-net_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-gen_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-no-anti-bot-verification_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004932.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4932	27272 bytes
SHA-256: `1c6df3523277348b5c383fb44dc20125792d3900f5e0abb47ee5f0c008fdd684`
`font_01_sfnt_off00008790.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8790	2824 bytes
SHA-256: `381f6d859be141449dd645f7be1484d2a1cf49218dc471b402dae69eaa2b11d5`
`font_02_sfnt_off00009132.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9132	19044 bytes
SHA-256: `9d15cea39f55034e6afbb2a3ea1ba507638b7d7e361a6df8337ae622c4e8976b`

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