PDF malware analysis — malicious · 2e4af9707b72e105

MALICIOUS

PDF

34.0 KB Created: 2021-06-25 18:45:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: dfa20572628c4c227be894f6478ab4d1 SHA-1: fa308b17cb13443a8649b4b5fb718be16d1fece4 SHA-256: 2e4af9707b72e105d449f3eae91f66d3f0aa55c53766b2766cfe7065bfeee71a

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 0.9980

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/roblox-bear-face-mask-free-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-roblox-accounts-with-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-free-play-now_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/master-coin-free-link_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/fbchampion-com_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-pokemon-givers-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-on-pc_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/best-meliodas-roblox-face-free_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/best-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-download_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/case-clicker-hack-roblox-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-minecraft-severs_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-roblox-place-downloads_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-accessories-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-free-unblocked_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/robux-generators-that-actually-work_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_off00002ffd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FFD	21880 bytes
SHA-256: `e11c793bec41fa0f6f5436ad5513409638afaf78afb825afa7386235582771c9`
`font_01_sfnt_off00005ff1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5FF1	19016 bytes
SHA-256: `bfbcb42030daa3656159b925925c4b080d618b2be5b7f9b67f927b3ca238125f`

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