PDF malware analysis — malicious · ecd9c0acfc78751e

MALICIOUS

PDF

35.0 KB Created: 2021-07-07 12:41:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: a0c0ee39d96d7f7837568deb853a07f8 SHA-1: 147c3ba92374c6729e9c7e5daa90176d63743c84 SHA-256: ecd9c0acfc78751e24abfff8a88169cf6cfdaaa40f060d37211247b1a86249d4

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/free-spin-coin-master-link-2021-game-hack PDF link annotation
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/how-to-hack-in-roblox-to-rank-up-a-group_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/site-17-hack-gui-roblox-script_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-roblox-no-clicps_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/arcane-legacy-roblox-hack_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-how-to-get-free-pets_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-robux-no-scam-or-verification_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/how-to-get-free-stuff-in-roblox-catalog-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/como-hackear-robux-en-roblox-2021-facil-y-rapido_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/how-to-get-hacks-on-roblox-phantom-forces_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/robux-hack-2021-pastebin_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-hacked-client-download-kostenlos-deutsch_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-robux-hack-ios_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/how-to-get-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/1b-free-robux-from-game_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/how-to-bypass-cheat-engine-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-robux-codes-gift-card_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/adopt-me-hacks-in-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/how-to-get-free-robux-in-apple-ipad_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-jailbreak-hack-exploit-download_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_off00003269.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3269	22504 bytes
SHA-256: `9b0813fbf353316ce10c4835e36668a60b32a4ede3666ff5b8d8614186da6ca5`
`font_01_sfnt_off00006487.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6487	18748 bytes
SHA-256: `21e227a5b4a4e86201c5ffd53a68098e06ad4a81ecbeade678e9824eb4386a01`

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