PDF malware analysis — malicious · 38e1c899ee29db07

MALICIOUS

PDF

46.8 KB Created: 2021-05-17 13:18:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: a8939f871c12d8b770f764f83e4f048b SHA-1: 4ad8d8d4574c6b558187e33c1c2cd4b40b516648 SHA-256: 38e1c899ee29db07977524ed45a7681b8aa896ca0a8a1a68f2206d780d78a3c2

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 0.8948

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/free-robux-no-password-game-hack PDF link annotation
- http://www.rewaqousha.net/userfiles/files/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/minecraft-book-collection_GM479516143.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/legitimate-coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/minecraft-115-2-hacks_GM479516143.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/mcpe-master-hack-unlimited-coins-latest-version_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/free-800-robux_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/free-robux-only-username_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/blox-world-free-robux_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/coin-master-free-spins-link-download-for-iphone_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/mcpe-master-hack-unlimited-coins-download_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/free-robux-site_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/hack-coin-master-2021_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/how-to-use-scripts-in-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.rewaqousha.net/userfiles/files/coin-master-raid-hack_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00004810.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4810	27348 bytes
SHA-256: `66fe03f2daec992246a8bb5815dda97f4279ba0a9d281b2c6a25087972aa2413`
`font_01_sfnt_off0000861b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x861B	5696 bytes
SHA-256: `450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139`
`font_02_sfnt_off0000932d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x932D	18732 bytes
SHA-256: `b254955316d184f98c6f6070526605807868e3146c8b9e5f8ca39f20861b2296`

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