PDF malware analysis — malicious · a541c7025393ed9d

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 11:58:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: f55d6c16a99459c6da0212f94962b747 SHA-1: 7f9d892b681823a3d0c3b73f1ba939f3702f4104 SHA-256: a541c7025393ed9d18294650e5948a242dfd66cb7b4e4272dda74040cf67a937

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/coinmasterdailyfreespins-com-game-hack PDF link annotation
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/hack-coin-master-apk-32_GM406889139.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-roblox-outfits_GM431946152.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/naruto-rpg-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-com-hack_GM431946152.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-hacks-2021_GM406889139.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-hack-murder-mystery-2-on-roblox_GM431946152.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-fan-page-free-spins_GM406889139.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-500-free-spins_GM406889139.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/como-hackear-coin-master-sin-verificacion-humana_GM406889139.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/roblox-hack_GM431946152.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/how-to-get-free-bloxburg-in-roblox_GM431946152.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-coin-coin-master_GM406889139.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/dragon-ball-z-final-stand-roblox-free-laevels-3_GM431946152.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/promo-code-hack-2021-roblox_GM431946152.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/coin-master-free-spin-sites_GM406889139.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-spins-on-coin-master-game_GM406889139.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/cheat-engine-63-roblox-download_GM431946152.pdfIn PDF document text
- http://www.clooetherattorneys.com/uploaded_files/userfiles/files/free-minecraft-pe-server_GM479516143.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_off000030f4.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x30F4	23144 bytes
SHA-256: `e5a3aab9822237826d5ed47d6353c6020a71d02f6b7dd689b3e399172553beec`
`font_01_sfnt_off00006518.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6518	18696 bytes
SHA-256: `ce456eb17f2db1915b327d416d1e6d0ed8e1fdec420ac0cee82ca000bfaa5c3f`

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