PDF malware analysis — malicious · aa3d1fb64a178858

MALICIOUS

PDF

46.3 KB Created: 2021-06-03 16:25:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 930be56905f00153f6806fca5b40f639 SHA-1: 8c8d5bf787df543a5558cab9d6538bdfa5d5420e SHA-256: aa3d1fb64a17885868a9c2bf58829ecf5b59c51d8dc0290b72ba43e1a18326fb

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure related to game hacks and free passes, directing users to a suspicious URL. The ML classifier strongly indicated maliciousness, and the presence of numerous game-related URLs suggests a phishing or scam campaign. No scripts were extracted, but the document's structure and embedded URLs point towards a social engineering attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9748

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.online/app/1094591345/pokemon-go-free-raid-pass-game-hack PDF link annotation
- https://www.andrology.co.uk/uploads/files/files/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/roblox-hack-app_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-hack-us_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/microsoft-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/hack-coin-master-spin-apk_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-app-hacks_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-hack-mobile_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/toolbox-for-minecraft-pe-ios_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/real-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/pokemon-go-free-remote-raid-pass_GM1094591345.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-videos_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-robux-com-real_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
- https://www.andrology.co.uk/uploads/files/files/free-free-robux_GM431946152.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
`stream_004_off000050d6.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x50D6	24032 bytes
SHA-256: `7807398e32cfb4b8d6495df7acd64fa750a0e02b283b1f69cf1ccfc17172d506`
`font_01_sfnt_off000087a0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x87A0	2980 bytes
SHA-256: `7759d00b2b93864c79bc0fca70ffdcdc34d821ecd92b660f9baf4d82407f8209`
`font_02_sfnt_off000091f4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x91F4	18364 bytes
SHA-256: `ef02fbb7eef75fe022ea22bdc551eb0b405c3feeeef97045acccae2c4e7c7444`

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