PDF malware analysis — malicious · 1895eff90f145e97

MALICIOUS

PDF

41.5 KB Created: 2021-05-13 08:01:37 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: c241464fe792feaaa8fa89e1818973c7 SHA-1: c87efb0d9f0f914dddc95331fc020fe2fd2d4491 SHA-256: 1895eff90f145e970751feaa26a83a5cfc960d6f85c16aee082f7b7102be9e9a

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 0.9971

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/406889139/coin-master-fan-page-free-spins-game-hack PDF link annotation
- https://malungtreks.com/userfiles/files/cm-free-spin-link-today_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-coin-master-spins-2021-link_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-hacked-version_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-heaven-links_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-coin-master-cards-link_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-hack-tool-v1-9_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-spins-from-coin-master_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/how-to-free-robux_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-hack-link_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/kachifpro_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-hack-2021-without-verification_GM406889139.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/what-games-give-you-robux_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/roblox-free-wings_GM431946152.pdfIn PDF document text
- https://malungtreks.com/userfiles/files/coin-master-free-gift-links-2021_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_003_off00004860.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4860	24480 bytes
SHA-256: `1202b5011b7ee18e539949ea1921191d937eeea2167a45a1f099251e67eb39ed`
`font_01_sfnt_off00007f94.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F94	18328 bytes
SHA-256: `d106028e9c816c4ed38d7f9dbfb4c1b42a2571be69ef627f7b4a635c4c6a8b94`

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