PDF malware analysis — malicious · 989c7fced0833832

MALICIOUS

PDF

41.7 KB Created: 2021-05-16 06:35:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 3dcfe1c246ba2da13234a435acdcb459 SHA-1: 10550dda0d012728fa73ebae4ea2038df0969532 SHA-256: 989c7fced08338322358564da6cb38d70ea1d1fd300d585cf12fb14be5b39100

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-today-daily-links-game-hack PDF link annotation
- http://apotema.com.co/ufiles/files/freecoins_GM406889139.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/descargar-coin-master-hack_GM406889139.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/free-robux-youtube_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/free-roblox-animations_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/robux-online_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/free-roblox-groups_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/minecraft-free-games-no-download_GM479516143.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/coin-master-fan-page-giveaway_GM406889139.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/robux-page_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/rbx-place-free-robux_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/no-scam-free-robux_GM431946152.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/sb-game-hacker-coin-master_GM406889139.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/coin-master-2021-free-spins_GM406889139.pdfIn PDF document text
- http://apotema.com.co/ufiles/files/daily-free-spins-coin-master_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_off00004851.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4851	24208 bytes
SHA-256: `b5b2989b1dadd0909cac05303961dd7276d1da897f8a35ad336797b768955612`
`font_01_sfnt_off00007f98.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F98	18652 bytes
SHA-256: `52d597ff4b9023df6b3510b92f87dc1d2329aed0448bc9fa59130058567cb992`

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