PDF malware analysis — malicious · 231548c92ba24691

MALICIOUS

PDF

41.2 KB Created: 2021-05-17 18:10:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 5bc311c915bb428f009bbd0094207d2f SHA-1: 92a022c4c4ebd2cf755211e1ce67b0dc97469dd7 SHA-256: 231548c92ba2469166d6deddad3fb1386f22661fa989cb854bdc5decfdee2379

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/hack-card-collection-coin-master-game-hack PDF link annotation
- http://greasley.online/images/hack-coin-master-using-cheat-engine_GM406889139.pdfIn PDF document text
- http://greasley.online/images/minecraft-hack-app_GM479516143.pdfIn PDF document text
- http://greasley.online/images/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://greasley.online/images/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
- http://greasley.online/images/toolbox-for-minecraft-pe-mod-apk_GM479516143.pdfIn PDF document text
- http://greasley.online/images/how-to-get-free-cards-on-coin-master_GM406889139.pdfIn PDF document text
- http://greasley.online/images/free-dominus-roblox_GM431946152.pdfIn PDF document text
- http://greasley.online/images/how-to-coin-master-spin-hack_GM406889139.pdfIn PDF document text
- http://greasley.online/images/free-robux-on-phone_GM431946152.pdfIn PDF document text
- http://greasley.online/images/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
- http://greasley.online/images/minecraft-pocket-edition-mods-for-free_GM479516143.pdfIn PDF document text
- http://greasley.online/images/minecraft-story-mode-free_GM479516143.pdfIn PDF document text
- http://greasley.online/images/get-free-robux-info_GM431946152.pdfIn PDF document text
- http://greasley.online/images/minecraft-skins-free-girl_GM479516143.pdfIn PDF document text
- http://greasley.online/images/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
- http://greasley.online/images/daily-coin-master-free-spin-link-facebook_GM406889139.pdfIn PDF document text
- http://greasley.online/images/free-robux-codes-generator-no-verification_GM431946152.pdfIn PDF document text
- http://greasley.online/images/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
- http://greasley.online/images/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
- http://greasley.online/images/free-spins-coin-master-hack-2021_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_off000048b0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48B0	24144 bytes
SHA-256: `f5e1786c4d9187bae2ad8abd4138810651db83a33ae69a0eaf370fc3ff41c276`
`font_01_sfnt_off00007f9b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x7F9B	17964 bytes
SHA-256: `98f8530e6ad966606d275a875844091aa6ee01ba2a7d6c4e2ba80f09f845ae47`

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