PDF malware analysis — malicious · 0a4e69a882b32e57

MALICIOUS

PDF

49.5 KB Created: 2021-06-11 11:12:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 380320a8e0cba871a2232278a5132f91 SHA-1: dc74ad6660cd4b86259213839407b3834838f9a7 SHA-256: 0a4e69a882b32e57786b8b17b0b265ca36c2b53499864d9f63bd496f35e8f15d

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 0.9796

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.tw/app/431946152/robux-hack-no-download-2021-game-hack PDF link annotation
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-spin-hack-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/roblox-meep-city-play-online-free_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-robux-wheel_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/how-to-hack-coin-master-game-2021_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/pubg-74-uc_GM1330123889.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-roblox-groups-with-funds_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/minecraft-pe-015-0-apk-free-download_GM479516143.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-game-for-pc-free-download_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-robux-glitch_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-robux-star-codes_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-32-mod-hack-unlimited_GM406889139.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_004_off00005416.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5416	25688 bytes
SHA-256: `672bd6f3ccea6fc894962f3a8424f319f503c26ec71c44978ee7773b342e2f9f`
`font_01_sfnt_off00008f69.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F69	3464 bytes
SHA-256: `8e24205afdd13dcdea98f8150ef77dee4030e0e50a7c748783d1b4598e034a20`
`font_02_sfnt_off00009b9f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9B9F	19228 bytes
SHA-256: `e35bfbf4af10f99704261edd1f1c21de78732923151c07e177a02406771163c1`

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