PDF malware analysis — malicious · b994522fef5936f7

MALICIOUS

PDF

42.8 KB Created: 2021-05-12 04:04:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: cf94c5738688f4d43356030b248f06a6 SHA-1: 184c2cd7b5e157c18fea5352a10c570e292e9cfc SHA-256: b994522fef5936f7af8f23e39181d3afe654a4210e91b4552fea921f22d821cd

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/406889139/coin-master-free-spins-daily-link-updated-game-hack PDF link annotation
- https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-heaven-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/roblox-executor-free-download_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/minecraft-mod-menu_GM479516143.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/free-robux-no-human-verification-generator_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/stock-speed-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-get-minecraft-pe-for-free_GM479516143.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/free-minecraft-mods_GM479516143.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/juego-hackeado-de-coin-master_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/how-to-get-free-robux-without-doing-anything-2021_GM431946152.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/hack-coin-master-android_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/coin-master-free-spins-may-11-2021_GM406889139.pdfIn PDF document text
- https://mtsn4blitar.online/__statics/gudangsoal/files/free-robux-hack-no-human-verification-or-survey_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
`stream_003_off00004aef.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4AEF	24788 bytes
SHA-256: `264e604c16e88572869d4202b5ca7d840ac01795f54787e1dd8e6b450781d91a`
`font_01_sfnt_off00008346.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8346	18836 bytes
SHA-256: `483be81730c5d51d00079e0b96a35004c6f4ace92d0df16fea0b4a10a7a49318`

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