PDF malware analysis — malicious · fcf323df8bda5aff

MALICIOUS

PDF

46.4 KB Created: 2021-05-15 06:54:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 8e296176e0138e97274987f4636cc4a6 SHA-1: 3f9c8e60e60415d28a19887b827f4f29c2419efd SHA-256: fcf323df8bda5aff6ea765a811ae0f32542d1d20ec455672a797174ba49d8743

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 0.8948

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/406889139/static-moonactive-net-link-game-hack PDF link annotation
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-robux-com-real_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-minecraft-videos_GM479516143.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/how-to-get-20210-robux-for-free_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-spins-coin-master-2021-today_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/coin-master-card-hack-apk_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/collect-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-robux-come_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-roblox-exploits_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/roblox-games-com-free_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/minecraft-rtx-download-free_GM479516143.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/coin-master-hack-tool-v1-9-pc_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/play-games-for-robux_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/coin-master-hack-xyz-apk-download_GM406889139.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/free-robux-ad_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/minecraft_GM479516143.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/minecraft-hacks-list_GM479516143.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/www-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.man5bojonegoro.com/__statics/gudangsoal/files/ww-roblox-come_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
`stream_003_off00004f71.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F71	26280 bytes
SHA-256: `eab4d243fc02d1468f4b5d7853ea51c1d4edd76016c59026dbd9a9af400b8f6b`
`font_01_sfnt_off00008a6a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A6A	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off0000941c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x941C	17828 bytes
SHA-256: `f1c4875db67d08a7f015f46d5edb04ada9e055205be7e1056ba7c59babce098d`

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