PDF malware analysis — malicious · a601dd2ea1dcff03

MALICIOUS

PDF

35.0 KB Created: 2021-07-03 14:25:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 5eb5c077c50d153e1261208c50d09c7c SHA-1: 20aa3efe13f0b0fdf95c698710dcf8ba2a48caf5 SHA-256: a601dd2ea1dcff039e6068b6c76897b7c36f9b1f595cf0794878302b1c1ab29e

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 0.9980

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 http://netcdn.tw/app/406889139/free-spins-for-coin-master-game-game-hack PDF link annotation
- https://www.failtesolar.com/uploaded_files/userfiles/files/how-to-get-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/wwwfreerobuxgenoratercom_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/coin-master-hack-xyz-download-free_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/a-free-game-called-roblox_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/how-to-get-everything-free-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-roblox-gfx-discord_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/rbxdemon_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/cheats-fr-roblox-jail-breack-beta_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-roblox-users-with-robux-live_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/free-spins-coin-master-facebook_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/how-to-hack-coin-master-ios-2021_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/get-2021-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.failtesolar.com/uploaded_files/userfiles/files/hackear-coin-master-android_GM406889139.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_002_off000031a3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x31A3	23200 bytes
SHA-256: `72ba0bcb0084ee082b0d7cda2d22b0c382134077aff90556c7a79fb7d2b914ff`
`font_01_sfnt_off000065b4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65B4	18432 bytes
SHA-256: `ba2b1c803cf60430fecd3a4ea667911e0c566277fb0db9da711a2662cfde09a8`

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