PDF malware analysis — malicious · ae9d3e9efddbf21e

MALICIOUS

PDF

34.4 KB Created: 2021-07-04 20:29:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-11

MD5: e01bb49889cb1be4d321f54a9b8a937f SHA-1: 1af23a06c05a713ef8ccc1fc566fe5c944de6d83 SHA-256: ae9d3e9efddbf21ed0c0868718ecef5ab900fe5921c3643d6b2f4bd29a274f38

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting game hacks and generators. The primary lure is a link to 'coin-master-free-link-spin-game-hack' which is hosted on a known malicious redirector. The document body and embedded URLs reinforce this theme, aiming to trick users into clicking through to potentially harmful content. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/coin-master-free-link-spin-game-hack In PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/top-10-best-free-game-executors-roblox_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-spin-link-2021_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-daily-spin-free_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/hack-roblox-android_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/wurst-112-2_GM479516143.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/roblox-hack-com_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/microsoft-rewards-roblox_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-spins-coin-master-november-2021_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-tiktok-followers-no-downloads_GM835599320.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-unlimited-spins-apk-free-download_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/hacking-apps-for-roblox_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/roblox-free-roblox_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-servers-for-roblox-super-power-traing-simulator_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/roblox-c9m_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_off00003052.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3052	22812 bytes
SHA-256: `9c96ebceeda9bbcabd28e8bef4b9c12527efb525dad870c2c08012558e2269fd`
`font_01_sfnt_off00006368.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6368	18344 bytes
SHA-256: `4cc6e2dc521752f6662ff63411afc6c7bdb40e83b7743aeaa6a2e3eea921da6e`

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