PDF malware analysis — malicious · 2d9974e404a04939

MALICIOUS

PDF

34.2 KB Created: 2021-06-25 03:50:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: d921351a72ca2c39cfddceadfa6b57b2 SHA-1: a5c28ae7595ef5d1d0f97a61cb9b6a57f68fd5c1 SHA-256: 2d9974e404a04939feedc4f4c1ebb963420156ff24292b5cff6912b6683f6198

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1059.007 JavaScript

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.co/app/479516143/minecraft-hacks-115-2-game-hack PDF link annotation
- https://www.advancissurgical.com/uploads/files/files/facebook-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-free-robux-with-no-verification_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/mcpe-master-coins-hack-download_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/yandex-disk-download-744d2021b6-robux-cheat-trs-rar-html_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-scam_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-safe_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-java-account-free_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-roblox-gift-card-codes_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-spin-and-win-coin-master_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/inf-jump-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/robux-hack-generator_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/robux-free-online_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/android-coin-master-3433-apk-hack_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-robux-generator-http-freerobuxgenerator-xyz_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/robux-in_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/legitimate-coin-master-free-spins-apk_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
`font_00_sfnt_off00003174.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3174	22604 bytes
SHA-256: `e365bb799dcaea616a506eadafa62185b307461dc9c49a92628cd0266e74ce66`
`font_01_sfnt_off000062c6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62C6	18392 bytes
SHA-256: `b832848807f295871b40fff526d07463d50f02137d8f891fa3c4dd7d1fe65eaf`

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