PDF malware analysis — malicious · 2df470e55c72e87f

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 02:03:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 8245d9ea21260deb1a45ba6106c4bc7e SHA-1: 38e06a1c3a6e75c81025584a553d0b8972b8eb70 SHA-256: 2df470e55c72e87f9fa2d3a16baf1da3f30dd90f8747562dc73f65c2befefd3f

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/431946152/roblox-hack-2021-game-hack PDF link annotation
- https://vieclamjapan.com/upload/files/how-to-start-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-2021-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/free-roblox-injector_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/free-roblox-acc_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/minecraft-java-for-free_GM479516143.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/free-spins-coin-master-app_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/gameoffice-net-hack-coin-master_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-spin-hack-2021_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-hack-version-download-2021_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/free-coin-master-spins-2021_GM406889139.pdfIn PDF document text
- https://vieclamjapan.com/upload/files/free-roblox-clothes-2021_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_off00004950.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4950	24860 bytes
SHA-256: `0cc3560dcfae3739525a761009992ff94fda1a6cacd381d530e7436054f1fa08`
`font_01_sfnt_off000082d2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x82D2	18584 bytes
SHA-256: `2941163c9806e22b58ea5552aa71059231a9f2c3bbffbca0ecd460ca17501cff`

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