PDF malware analysis — malicious · f8ba920feebba4dd

MALICIOUS

PDF

45.3 KB Created: 2021-06-03 10:05:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 4d018f23c867bcc25b4219dd46570667 SHA-1: 5b658438ed6d5614f6cebc43a870252683240399 SHA-256: f8ba920feebba4ddbe0051e9192a20d8a3026bcdee44f76bf4b7e12b31ac1bbf

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/431946152/free-robux-with-no-verification-game-hack PDF link annotation
- https://www.ak-oroslavje.hr/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/coin-master-card-link-free_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/minecraft_GM479516143.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/wurst-minecraft_GM479516143.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-robux-games_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/rbxoffers-earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/download-coin-master-hack-apk_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/how-to-get-free-coins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-spins-coin-master-links-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/how-to-log-out-of-coin-master_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/no-human-verification-hack-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://www.ak-oroslavje.hr/files/free-robux-redeem-codes_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_off00005292.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5292	25264 bytes
SHA-256: `54bad5a26c00460fa0806c5bdfce3e3f42cf447f3520ebc13c564622ec019dd3`
`font_01_sfnt_off00008c54.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C54	18964 bytes
SHA-256: `882e97bebd076dae688415b0184bb224dca7d5b64082a0b27c077a0c76cfc979`

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