PDF malware analysis — malicious · da4e61ce70d41008

MALICIOUS

PDF

45.6 KB Created: 2021-06-03 06:57:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 061d48055d0ab183678e7d449a5ed2f8 SHA-1: 1481e7d14e50301b044eefc1743b7676bc88c6e7 SHA-256: da4e61ce70d41008301797b84c8a23a9fa328e241c8dbd44fc700d908ce4ad42

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 0.9864

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/406889139/coin-master-hack-without-verification-2021-game-hack PDF link annotation
- http://polycraft.ae/uploaded_files/userfiles/files/roblox-free-vip-server_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/how-to-get-100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-shirt-templates-roblox_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-hack-cydia_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-spin-link-of-coin-master_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-coin-master-game_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/how-to-get-minecraft-bedrock-for-free-with-java_GM479516143.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-spins-on-coin-master-iphone_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/free-robux-instantly_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/chams-hack-roblox_GM431946152.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/coin-master-cheats-free_GM406889139.pdfIn PDF document text
- http://polycraft.ae/uploaded_files/userfiles/files/roblox-robux-codes-2021_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_004_off000052f7.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x52F7	26688 bytes
SHA-256: `f1aeb7ac00953388d207bb5f46de0782b2fec22128376ab399b5e9c786522a5d`
`font_01_sfnt_off00008e07.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E07	18756 bytes
SHA-256: `1f8069b8e373c1677ee696ae61803aee5e0941708a1ef93a03d88c08535d6ef3`

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