PDF malware analysis — malicious · af93fcee4a824598

MALICIOUS

PDF

44.4 KB Created: 2021-05-17 08:40:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 9a6c84f007a4ac062f9d75442cac7f8f SHA-1: d8b7bc7ad36b953685a7274653f4c47a7922d759 SHA-256: af93fcee4a824598b2f0e3000863cab6f0cb387f103bb0f638b7fd2732ca2921

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 https://netcdn.xyz/app/431946152/free-robux-generator-without-verification-game-hack PDF link annotation
- http://www.rigor.co.mz/uploaded_files/userfiles/files/free-robux-real_GM431946152.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/como-hackear-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/coinmaster-links_GM406889139.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/coin-master-hack-generator_GM406889139.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/free-robux-app-real_GM431946152.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/free-robux-rewards_GM431946152.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/coinmaster-blogspot_GM406889139.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/robux-generator-without-human-verification-2021_GM431946152.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/mcpe-master-coin-hack-apk_GM406889139.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/free-roblox-gear_GM431946152.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/free-robux-just-enter-username-and-password_GM431946152.pdfIn PDF document text
- http://www.rigor.co.mz/uploaded_files/userfiles/files/free-custom-minecraft-skins_GM479516143.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_003_off00004bb8.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BB8	27348 bytes
SHA-256: `89b302f7af9cb186ab8a6b9692bae3d68064a6e871c6733bcd1b50f926f2877b`
`font_01_sfnt_off0000895a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x895A	18964 bytes
SHA-256: `28b129fa50d9ed943d388e6dee4b9579dbddb2c3d46c54f90e146500d20faa97`

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