PDF malware analysis — malicious · eb48c77d73713c97

MALICIOUS

PDF

34.8 KB Created: 2021-07-08 07:40:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 1d819d6fb31629630e5cb130b1281ab3 SHA-1: b2900c9272a3842340922acb00bd2dc068a7da1d SHA-256: eb48c77d73713c9723710af42c4f089a74b5f20bc8bc68e0c505b1a4db989b8d

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.tw/app/406889139/spin-coin-master-hack-game-hack PDF link annotation
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/games-like-coin-master-for-free_GM406889139.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/robux-games_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/robux-online_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/infinite-jump-wearedevs-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-cracked-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-robux-app-2021_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-aimbot-roblox_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/cheats-in-roblox-prison-life_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/cheat-engine-64-roblox-robux-hack_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/free-robux-just-click_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/notoriety-roblox-loot-cheat_GM431946152.pdfIn PDF document text
- https://www.e-learning-mts-sirojulhuda.com/__statics/gudangsoal/files/rewards-robux_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_002_off000032c1.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x32C1	22724 bytes
SHA-256: `196c71253ca7b0554808e509e66c208e22946209cf6648c8926984e084a7b00f`
`font_01_sfnt_off00006573.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6573	18180 bytes
SHA-256: `a457c3dc74b8cb4e60522bbc79d80e21df296d3e2b3a7f7265d5b124833b11dd`

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