PDF malware analysis — malicious · 7d449a2f228499f1

MALICIOUS

PDF

43.6 KB Created: 2021-05-15 03:34:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 55fed7d291b52d06191421214b877291 SHA-1: b252f7a8f008e0589f6d22b29af6d32959740bc0 SHA-256: 7d449a2f228499f156e3f725f28b9e5d44a6d4b8ea86871be53c4bbf77ae5eca

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to websites offering game hacks and generators, such as 'earn-robux-today-game-hack'. This lure is designed to trick users into visiting potentially malicious sites. The ML classifier also flagged this PDF as malicious with high confidence.

Machine Learning

Nyx PDF Classifier malicious score 0.9969

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/earn-robux-today-game-hack PDF link annotation
- http://knjiznica-oroslavje.hr/files/robux-fun-hack_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/who-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/free-free-robux_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/roblox-toy-codes-free_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/coin-master-connection-lost-hack_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/roblox-prison-life-hack_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/free-bling-bling-card-coin-master_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/coin-master-hack-without-human-verification_GM406889139.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/coin-master-free-coins-facebook_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/coin-master-ids-for-free-spins_GM406889139.pdfIn PDF document text
- http://knjiznica-oroslavje.hr/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/coin-master-free-spins-2021-haktuts_GM406889139.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/minecraft-hacks-pc_GM479516143.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/roblox-pics_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/roblox-exploit-download_GM431946152.pdfIn PDF document text
- https://www.knjiznica-oroslavje.hr/files/free-robux-no-verification-no-download_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
`stream_003_off0000492c.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x492C	27460 bytes
SHA-256: `3ea349a65a091821e3eae9e98580e7c32a66e0e2eb883c4935836b98fd41cd9b`
`font_01_sfnt_off00008787.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8787	18432 bytes
SHA-256: `50fc1adeb895ae30588f73a493889120d8bf728fc3821c38df9289c33b75de2a`

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