PDF malware analysis — malicious · d85c50858be89f48

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 07:34:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 4a6059a8fca11c28017b6fb4ba066f8a SHA-1: 846bb36e09c8e5678189cafecb91a3e8b3dbe49d SHA-256: d85c50858be89f4809a5ef245fec0f309bfbad4f111c050fe068015b67081364

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs, including one pointing to 'robux-miner-game-hack', and is flagged by heuristics as a game hack lure. The document body, though partially corrupted, also contains references to these lures and URLs. The presence of embedded URLs suggests an attempt to redirect the user to malicious sites, likely for phishing or malware distribution.

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/robux-miner-game-hack PDF link annotation
- http://nationshield.ae/userfiles/files/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/roblox-help-free-robux_GM431946152.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/minecraft-java-edition-free-trial_GM479516143.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/get-free-likes-on-tiktok_GM835599320.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/coin-master-free-spins-2021-link_GM406889139.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/how-to-get-free-robux-2021-sylvester_GM431946152.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/how-to-reveal-your-hacked-accounts-password-on-roblox_GM431946152.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/easy-roblox-today_GM431946152.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/coin-master-free-spin-whatsapp-group-link_GM406889139.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/coin-master-hacked-apk-download-for-android_GM406889139.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/roblox-speed-hacks-that-work_GM431946152.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/roblox-hack-top-2021_GM431946152.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/roblox-free-robux-no-fike_GM431946152.pdfIn PDF document text
- http://nationshield.ae/userfiles/files/coin-master-hack-generator-tool_GM406889139.pdfIn PDF document text
- http://nationshield.ae/userfiles/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
`font_00_sfnt_off0000300e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x300E	22928 bytes
SHA-256: `0f21b5da54e06cbde67d09014b2a5669dae8b6cabb483ab651abd861a29d59ae`
`font_01_sfnt_off00006355.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6355	18868 bytes
SHA-256: `183429bdbf7ecae0c18e50d403fb432c957990045bfe1c1dbf73e59a2b4bdc01`

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