PDF malware analysis — malicious · 56dabef9ba3a72d1

MALICIOUS

PDF

33.9 KB Created: 2021-07-05 01:19:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 3c5a03296dee42c36908fc92e4540d35 SHA-1: 089f298ba1f9099932cadc9a48f372f2382d5f04 SHA-256: 56dabef9ba3a72d1e0b7398710e05a4cee290d461b7a649048039fbbfd7c3532

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/479516143/minecraft-that-you-can-play-for-free-game-hack PDF link annotation
- http://vermaagri.com/uploaded_files/userfiles/files/give-free-robux_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/daily-coin-master-free-link_GM406889139.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/blogger-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/free-robux-generator-no-verification-2021_GM431946152.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/roblox-2021-hack_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/coin-master-free-spins-and-coins-group_GM406889139.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/roblox-hack-codes_GM431946152.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/minecraft-java-server-hosting-free_GM479516143.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/cheat-in-rake-roblox_GM431946152.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/mythical-chaos-robux-hack-v3-0_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/minecraft-download-free-download_GM479516143.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/roblox-devil_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/minecraft-modded-client_GM479516143.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/www-rubux_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_off00003161.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3161	21472 bytes
SHA-256: `fa03b772750705fb2754e6ec6ba60453658a05a29ad4c5ea90e61e0d10b8898e`
`font_01_sfnt_off0000604e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x604E	18872 bytes
SHA-256: `c14a64e1cd9767792e23c361a5442cbd2271d12f8fb26f1f3810dea2f6830d61`

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