PDF malware analysis — malicious · d3f4f4fad1d48caa

MALICIOUS

PDF

44.8 KB Created: 2021-05-11 00:31:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 072d30ae3dba3776f73c56daffbfcb13 SHA-1: 2db38daba9d311d43bcdcb3cdd337b28a5049899 SHA-256: d3f4f4fad1d48caa75ff324c10c3f1536feefcece83a39f18d32c37e9456e3b2

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 https://netcdn.xyz/app/431946152/how-to-hack-any-roblox-account-game-hack PDF link annotation
- https://www.wearmyspex.com/uploaded_files/userfiles/files/minecraft-book-collection_GM479516143.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-roblox-account-generator_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-robux-link_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-robux-accounts-2021_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/roblox-got-talent-piano-hack_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-cheats-free_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-spins-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/freerobux-hack-us_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/hack-para-coin-master-singapore_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/earn-robux-today-earn-robux-today_GM431946152.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/minecraft-free-minecraft_GM479516143.pdfIn PDF document text
- https://www.wearmyspex.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-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_off00004ab3.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AB3	28372 bytes
SHA-256: `5272517886299e1c326814e1040155603f4d37f93450daa7ba248e77fedc96cc`
`font_01_sfnt_off00008b1e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8B1E	18772 bytes
SHA-256: `d5ac01ba848f85c7af00746e0b4ab9643e0d1d2f53353368de6e0e250a854553`

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