PDF malware analysis — malicious · a4a3b151e21f360e

MALICIOUS

PDF

33.6 KB Created: 2021-06-30 17:16:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 96bb63b90cc49d537fda8a8b6218e585 SHA-1: e27d6625c1c53a7cf4e2610f2d7575c912539bfd SHA-256: a4a3b151e21f360e5ed41b6b9f29f32ce82be3dc9fdbda499fd053dc4dc9829d

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/free-robux-now-game-hack PDF link annotation
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/roblox-data-breach_GM431946152.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/robux-free-online_GM431946152.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/minecraft-apk-free-download_GM479516143.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/minecraft-free-download-mac-full-version_GM479516143.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/free-robux-scam_GM431946152.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/roblox-promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/free-robux-download_GM431946152.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/redeem-roblox-card-free_GM431946152.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/coin-master-free-spins-23-march-2021_GM406889139.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/how-to-get-free-robux-without-any-verification_GM431946152.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://www.biofarshrimpskincare.com/ckfinder/userfiles/files/hack-coin-master-apk-31_GM406889139.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_off00002f31.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F31	21660 bytes
SHA-256: `31fa7bc0022c821c52e2dbf644757f0cb640c76834a355b20e3332143919ca80`
`font_01_sfnt_off00005ec9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5EC9	18880 bytes
SHA-256: `5812b0d0ccf9dc87c8d54428ef2763728ec286cf096b79da6b6c7cfb1f79e008`

Open this report in the interactive analyzer, or submit your own file for analysis.