PDF malware analysis — malicious · 21468e08dacc2eb1

MALICIOUS

PDF

47.2 KB Created: 2021-06-03 16:33:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 2a0ba87216bec7258768c258bdc1a70d SHA-1: 84c1480e4050f718f126111d93f0d56247de2f59 SHA-256: 21468e08dacc2eb13f8aa24e872a61dc3555ab87b1efb040f36bfbbfd4782a5e

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 0.9769

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.online/app/479516143/wurst-112-2-game-hack PDF link annotation
- https://www.andrology.co.uk/uploads/files/files/300-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/abd-roblox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-400-spins-coins-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/kachifpro_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-hack-coin-master-with-game-guardian_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-do-you-get-roblox-for-free_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-admin-roblox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-followers-on-tiktok_GM835599320.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/fan-page-coin-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/minecraft-gun-mod-download-free_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/daily-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-websites-2021_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-hack-september-2021_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/is-minecraft-bedrock-edition-free_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/robux-hack-2021_GM431946152.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_004_off000051e2.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51E2	26012 bytes
SHA-256: `fe761a58bb80a3c1ca009cab208796e5943e59927237246e55485f77bb87a962`
`font_01_sfnt_off00008d31.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D31	2944 bytes
SHA-256: `e8dca988325d5b5adea380508eed68725fcb814536e93cd420f224b7166adc23`
`font_02_sfnt_off0000975d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x975D	17788 bytes
SHA-256: `ce3f60beb4de00bcffae905034889af3c96f4f191e5c47ffd96b019a9d508339`

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