PDF malware analysis — malicious · 8a5ef88354411e6f

MALICIOUS

PDF

46.0 KB Created: 2021-05-11 14:35:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 84346f5b32ccff3b4365fb9dc741bcc0 SHA-1: 7e143fa512eb358d7997b9c2870b49a443cf78b7 SHA-256: 8a5ef88354411e6fc8fb9752f8274c0d287f11da8bcea1d47502a766b829c435

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 0.9432

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.xyz/app/431946152/oprewards-points-generator-game-hack PDF link annotation
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-robux-codes-2021-not-used_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-2021-robux_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/earn-robux-online_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-minecraft-realms-to-join_GM479516143.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/minecraft-pe-apk-free-download_GM479516143.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/minecraft-bedrock-edition-pc-free_GM479516143.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/no-human-verification_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/master-coin-free_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.laxmansartemporium.com/uploaded_files/userfiles/files/coin-master-spins-hack-2021_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_003_off00004bde.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BDE	25344 bytes
SHA-256: `ef2f08f9b200cef9f029f56c194f3e45a23737db8f90080efd2f46727672a219`
`font_01_sfnt_off00008675.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8675	2940 bytes
SHA-256: `eb230542719c96b42e3fd8bb01e35f13ebd5f02629049da3a58e7fd7607bf48a`
`font_02_sfnt_off00009085.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9085	18464 bytes
SHA-256: `1f8e609d6837fbe9d541e60b2038981984e2889c8e8d6f72a613ebd55477316c`

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