PDF malware analysis — malicious · 7afcffed877ebedd

MALICIOUS

PDF

35.3 KB Created: 2021-06-26 19:04:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 2025346dfd6b2e8f62f96c40a25fe790 SHA-1: 4d270075c7c5daf847292c5b9b4e5747fffac72b SHA-256: 7afcffed877ebeddf2b755ac5b3e997a5a390b0c7a732df8d882a2d4ca6e676d

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/growbox-com-free-robux-game-hack PDF link annotation
- http://www.repion.com/uploaded_files/userfiles/files/grabpoints-robux_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/free-robux-rbx_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/free-robux-offers_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/free-adidas-hoodie-roblox_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/roblox-hacked-accounts-list_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/free-roblox-promo-codes-november-2021_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/coin-master-free-spins-generator_GM406889139.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/roblox-bubble-gum-simulator-cheats_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/get-free-roblox_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/free-college-textbooks-tiktok_GM835599320.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/robux-inspection-hack_GM431946152.pdfIn PDF document text
- http://www.repion.com/uploaded_files/userfiles/files/how-to-get-free-clothes-on-roblox-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
`font_00_sfnt_off00003243.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3243	22616 bytes
SHA-256: `2585245996b60158469e7c686ddb22b345f28a5053cae35aaa39598bcf8edaa9`
`font_01_sfnt_off000064e9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64E9	19140 bytes
SHA-256: `ca39c96318f672ea06ed83efdb7f713af954eb55b04d8dd0a6067734b26aae4d`

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