PDF malware analysis — malicious · 9c7e60ef26da2ef4

MALICIOUS

PDF

43.9 KB Created: 2021-05-15 16:03:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: a1ee943ade8a209bbf1f2b9e7e7e36e0 SHA-1: 28f2856d237969fea7a8fc14d5516626c1f6ed57 SHA-256: 9c7e60ef26da2ef47c43e5b475b8507a9f9b46c0463d636fb576d2d93a1897ed

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 0.9969

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/free-robux-without-verification-2021-game-hack PDF link annotation
- https://www.alloywheels.in/uploaded_files/userfiles/files/minecraft-free-play-now_GM479516143.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/real-robux-generator_GM431946152.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/robux-generators-that-actually-work_GM431946152.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/tiradas-coin-master_GM406889139.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/minecraft-free-download-iphone_GM479516143.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/get-free-spins-link-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/giftrobux-com-generator_GM431946152.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/roblox-hack-site_GM431946152.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/easiest-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.alloywheels.in/uploaded_files/userfiles/files/how-to-get-free-roblox-gift-cards_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_off00004bad.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BAD	25112 bytes
SHA-256: `a8ac13ffb2d5b616c841e175d0d6636dbd9ea2ef0f3a864741e27e5c12f3217f`
`font_01_sfnt_off000085ce.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x85CE	19368 bytes
SHA-256: `a82984a519d7edf94c6531cfcf7f8df3cbe602e214b877051ae5dee029c294bf`

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