PDF malware analysis — malicious · 99518e7948d283c5

MALICIOUS

PDF

47.3 KB Created: 2021-05-13 11:35:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 863e92bb7ddde9bf8a88b89b9b11cd8c SHA-1: 66a60c2921cd642bd3ac016284719fa394881546 SHA-256: 99518e7948d283c50d2011260fc2fa9d06e87d137634dde8b30eb8163cada38b

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links, including one pointing to a 'free generator / game hack' lure. The document body, though heavily obfuscated, contains references to game-related terms and a URL that appears to be a redirector. The presence of these links suggests an attempt to trick users into visiting malicious websites, likely for credential harvesting or malware distribution. No scripts were extracted from this sample.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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-roebucks-game-hack PDF link annotation
- http://www.tamimaudit.com/uploaded_files/userfiles/files/free-coin-master-links_GM406889139.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/free-coins--spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-facebook_GM406889139.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/spin-coin-master-free_GM406889139.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/roblox-free-roblox_GM431946152.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/how-to-change-your-username-in-roblox-for-free_GM431946152.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/hack-coin-master-without-verification_GM406889139.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/coin-master-free-spins-link-download-apk_GM406889139.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/free-100-robux_GM431946152.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/free-roblox-shirt-templates_GM431946152.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/robux-generator_GM431946152.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-phone-2021_GM431946152.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/hack-client_GM479516143.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/hack-coin-master-32-mod-apk_GM406889139.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/roblox-hack-scripts-pastebin_GM431946152.pdfIn PDF document text
- http://www.tamimaudit.com/uploaded_files/userfiles/files/free-robux-generator-no-survey_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004eed.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4EED	27400 bytes
SHA-256: `6643c5812c4b67bf2a27693b2ea23a8d8843fe008ae846093a03bec7f5ed7fd7`
`font_01_sfnt_off00008dba.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DBA	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off0000976b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x976B	17972 bytes
SHA-256: `60768b29a45169123c775a336c15772b774497df18e699e4ee663c92ad74688c`

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