PDF malware analysis — malicious · 05f36aeea3e14d8f

MALICIOUS

PDF

41.3 KB Created: 2021-05-12 04:00:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: bf1fba3d41650be6b62d6cf0f4769e62 SHA-1: 7d94cdc308e6bb765d8e0597b25435174813fb8f SHA-256: 05f36aeea3e14d8f571ccf98125d6795427e6e6c926b13bf4b6553b707abc5d4

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-app-game-hack PDF link annotation
- https://itamleek.net/uploaded_files/userfiles/files/coin-master-blogspot-free-spins_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/minecraft-pocket-edition-hack_GM479516143.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/free-spin-coin-master-instagram_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/free-script-executor-roblox_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/coin-master-hack-app-download-free_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/how-to-get-free-hair-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/cute-free-roblox-clothes_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/how-to-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/coinmaster-spin-ml-link_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/how-to-get-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/free-coins-and-spins-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/roblox-hacks-2021_GM431946152.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/coin-master-vip-hack_GM406889139.pdfIn PDF document text
- https://itamleek.net/uploaded_files/userfiles/files/easy-robux-today-com_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_003_off00004955.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4955	24484 bytes
SHA-256: `a8e681592587c40f47342c7516b1f16e5e30cd2916881df073f6c6721d22a8bd`
`font_01_sfnt_off00008071.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8071	17724 bytes
SHA-256: `339b5b6fe59ead3b36abdaa7c47f6a088c65e9e818337b9290cb92488f21cdbf`

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