PDF malware analysis — malicious · 54bea1bc97793e85

MALICIOUS

PDF

34.5 KB Created: 2021-07-09 16:38:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: c73af67c024c67bb1479b04f9f547757 SHA-1: 08f1ab5ea938aa7d64753a8635019dc92d2236f1 SHA-256: 54bea1bc97793e851ba0a6a52afe0e6fd37c797fc4fe7bdd483f28a04df2d40f

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/479516143/minecraft-free-download-mobile-game-hack PDF link annotation
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/coin-master-hack-spins-download_GM406889139.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/roblox-hack-how-to-get-evrything-free-on-catalog_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/xray-hack_GM479516143.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-robux-no-password_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/make-free-robux_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/minecraft-pe-free-ios_GM479516143.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/roblox-hackgz_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/how-do-we-get-free-robux_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/picture-roblox_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/coin-master-free-coins-and-spins-daily_GM406889139.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/earn-rbx_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/roblox-fly-hack_GM431946152.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/coin-master-generator-hack_GM406889139.pdfIn PDF document text
- https://elearning-mtsn3jkt.com/__statics/gudangsoal/files/free-robux-com_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_off00003188.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3188	22552 bytes
SHA-256: `2032d4f4c0f26dba3eb14da5a6633114884f2f0d293c40e11af4e013b1d590a7`
`font_01_sfnt_off000062e7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62E7	18736 bytes
SHA-256: `b6e051f0b4e02b7356fd7079c0d6036a663a9338c3288034fa352d97dcc0d1e4`

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