PDF malware analysis — malicious · fd623f8fd4dce2d0

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 11:22:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 712996d471a225a75acb16fdca77b371 SHA-1: 117dee55ec4f12fd92cf64049eb534c903ef3218 SHA-256: fd623f8fd4dce2d0a78f0a3d05f78b74a9edc5cc15561c584b40e937c5a7dcff

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-coin-master-no-verification-game-hack PDF link annotation
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/roblox-robot-animation-free_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/compte-cheat-roblox_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/hack-roblox-boku-no-roblox-remastered_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-minecraft-survival-server_GM479516143.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/roblox-bc-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/pokemon-go-free-4k_GM1094591345.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/roblox-hack-apk-para-pc_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/pokemon-go-free-leafeon_GM1094591345.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-roblox-account-generator-youtube_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/why-does-roblox-servers-shutdown-when-cheat-engine-is-on_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/pokemon-go-free-roam-hack_GM1094591345.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/roblox-free-gamepasses-script_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-catalog-robloxcom_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/free-robux-codes-january-2021_GM431946152.pdfIn PDF document text
- https://www.shaillybeauty.com.au/uploaded_files/userfiles/files/roblox-script-hack_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
`stream_002_off00003368.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x3368	23064 bytes
SHA-256: `2d06ba39663c09ee2a543f7b3a9777161436038f1000d91fe5e136e304a6e88c`
`font_01_sfnt_off0000674f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x674F	18308 bytes
SHA-256: `63d46e2fc11b5f381c18d1546a8cbb42f040e681088ff612efa24a789ab3d44b`

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