PDF malware analysis — malicious · a89e5de917fa7523

MALICIOUS

PDF

34.3 KB Created: 2021-07-05 18:54:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 0f7a8bb9487b059c12e6db311c2f2399 SHA-1: 7da234a23b2c108617ac94422adb8aa04a2b9396 SHA-256: a89e5de917fa75237778eb0830ba816e146f5cb044d274963b47fd103e2e3dc3

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/479516143/minecraft-ps4-free-game-hack PDF link annotation
- https://malungtreks.com/userfiles/files/free-links-to-coin-master_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-online-free_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/buy-robux-free_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-meep-city-how-to-get-free-plus_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-free-spins-link-2021-ios_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/hacker-booga-booga-roblox_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/freespinandcoin-blogspot-com_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/download-hack-coin-master_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/how-to-get-free-coins-and-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/how-to-download-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-robux-generaters_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
`font_00_sfnt_off000031f7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31F7	22440 bytes
SHA-256: `ec809d65aebd7e7e7099730ff1af44c3f09f4bf773d37a067065ad92286ca43a`
`font_01_sfnt_off000063fb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63FB	18072 bytes
SHA-256: `07bff6b201fefb5b79bda7bcb703d65895bb3fadc7074254717ea8518f49b268`

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