PDF malware analysis — malicious · 6ef5ebe7b5aaf3d4

MALICIOUS

PDF

34.8 KB Created: 2021-06-26 22:30:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 843e7b4b61c5a770a0b44c63a91d2c0f SHA-1: d58089c64b72a237d7bc5be5aa637099ccbc0857 SHA-256: 6ef5ebe7b5aaf3d44a62ed83406c2acd6c318f4f2d78fe3248ac338bd6ac5aed

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/objet-roblox-librairie-free-game-hack PDF link annotation
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-spins-and-coins-coin-master-facebook_GM406889139.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/minecraft-116-free-download_GM479516143.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-robux-and-obc_GM431946152.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-coin-master-stuff_GM406889139.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-star-codes-roblox_GM431946152.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/hacks-para-roblox-phantom-forces-2021_GM431946152.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/coin-master-claim-free-spins_GM406889139.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/coin-master-2021-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/pokemon-go-free-versus-pc_GM1094591345.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/free-games-like-roblox_GM431946152.pdfIn PDF document text
- https://www.blessflowers.com.au/uploaded_files/userfiles/files/daily-spin_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_off00003179.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3179	22192 bytes
SHA-256: `d94a92272c85cea982e90dff20928657ec48215ce8d507beeb6bdd05ea2770ef`
`font_01_sfnt_off000062df.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62DF	19060 bytes
SHA-256: `e1324e94362ca6470471d64fb164206db45c20e2ef2174a9874a130799710889`

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