PDF malware analysis — malicious · 490e46c71c9d131e

MALICIOUS

PDF

42.9 KB Created: 2021-05-15 05:30:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 4e863aa7b0e5422db4e5729dbf6aa5d5 SHA-1: 9d721fde91ea8f544f07821457d371c76388fdd5 SHA-256: 490e46c71c9d131ef2cb325e1606e9317abdcaaf83784fb0bacda46fd8087e3b

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 0.9971

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 https://netcdn.xyz/app/431946152/robux-download-game-hack PDF link annotation
- https://elearning.misalifadah.com/__statics/gudangsoal/files/can-you-earn-robux_GM431946152.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/roblox-girl_GM431946152.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/free-robux-clothes_GM431946152.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/minecraft-hacked-client-112-2_GM479516143.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/robux-free-online_GM431946152.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/can-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/roblox-group-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/minecraft-hacks-xbox-one_GM479516143.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/wurst-client_GM479516143.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/minecraft-free-online_GM479516143.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/minecraft-free-download-android-apk-014-0_GM479516143.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/free-coin-master-app_GM406889139.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
- https://elearning.misalifadah.com/__statics/gudangsoal/files/coin-master-hacks-for-spins_GM406889139.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_003_off00004a5b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A5B	24960 bytes
SHA-256: `513d02aa2f7e09fb124f10304e49b7a8f2fe680d2eaf108eeb822389bada206f`
`font_01_sfnt_off000083ee.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83EE	18656 bytes
SHA-256: `643f530bc401710360b2f74e2e590a7f6ab15445ebda3165faa7e078ea1fa698`

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