PDF malware analysis — malicious · 2fb37c74bb01e4e2

MALICIOUS

PDF

36.8 KB Created: 2021-07-07 15:53:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: cc87e3057685eb94dcc61547c4d0097d SHA-1: 4eebf420a7f278be6632f0854f7deac7242615f3 SHA-256: 2fb37c74bb01e4e2fa4def268a087d425d579f0b502f6466889a19df89700729

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/431946152/how-to-hack-someones-roblox-account-2021-game-hack PDF link annotation
- https://www.mtsn1siak.com/__statics/gudangsoal/files/free-robux-survey_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-robux-discord-servers_GM431946152.pdfIn PDF document text
- https://www.mtsn1siak.com/__statics/gudangsoal/files/app-hack-to-roblox-mod-apk_GM431946152.pdfIn PDF document text
- https://www.mtsn1siak.com/__statics/gudangsoal/files/free-roblox-bugmenot_GM431946152.pdfIn PDF document text
- https://www.mtsn1siak.com/__statics/gudangsoal/files/roblox-script-executor-free-mac_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
- https://www.mtsn1siak.com/__statics/gudangsoal/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/bloxpage-free-robux_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/roblox-avatar-girl_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-hack-download-2021_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-role-in-coin-master_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/coin-master-hack-ios-apk_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/kazuin-how-to-hack-in-roblox_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/how-to-get-verified-on-tiktok-for-free_GM835599320.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/roblox-robux-hack-download-free-2021_GM431946152.pdfIn PDF document text
- https://mtsn1siak.com/__statics/gudangsoal/files/free-robux-rixty-codes-2021_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_off000034ae.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x34AE	23048 bytes
SHA-256: `d2ac9269023194011ee14372dcf8ab3e74ba95d6e6987ec9f0a4369552379e3c`
`font_01_sfnt_off000068b3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x68B3	19724 bytes
SHA-256: `f50c412bcfe1d1f98486a75b2c7138549e2bea37deae9173a274dae717afecb9`

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