PDF malware analysis — malicious · e9e007bd709a8ea3

MALICIOUS

PDF

34.1 KB Created: 2021-07-02 08:15:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 83866d5a1b2f9ca219b441a2e6fc81d2 SHA-1: 1ffd5a68c3ee22d214efb41f80b573f6462ce588 SHA-256: e9e007bd709a8ea3333e2022815da87f0f61693465600b979070078883f96738

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 http://netcdn.co/app/431946152/nonseindiamond-hack-roblox-game-hack PDF link annotation
- http://www.duchem.ae/uploaded_files/userfiles/files/free-robux-hack-legit_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/hacks-para-roblox-sin-inyectores_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/rb-free-online-games-on-roblox_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-hack-pc-free_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-robux-hack_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/how-to-get-free-minecraft-windows-10_GM479516143.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-codes-for-roblox-deathrun_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/roblox-skybox-changer-hack_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/caillou-hack-roblox_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/robux-hack-and-bc-2021_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/roblox-cheats-to-get-free-builders-club_GM431946152.pdfIn PDF document text
- http://www.duchem.ae/uploaded_files/userfiles/files/free-robux-no-human-verify_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
`font_00_sfnt_off000030eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x30EB	21548 bytes
SHA-256: `472c3ba200d0bb41421973c003c1f5ee46c367906490f9ae0597e0f636deb72f`
`font_01_sfnt_off00005fd8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FD8	19208 bytes
SHA-256: `b75b83858712a6b65e773f441c8a013087f685005fae9be09ef67ef10494dac1`

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