PDF malware analysis — malicious · e38cde5ae874263f

MALICIOUS

PDF

42.0 KB Created: 2021-05-13 08:02:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-11-22

MD5: 8b930aef1849d995792a135f8a63d3a8 SHA-1: 10bd015dd19a99b80cbf8280cd5e0cd974bde870 SHA-256: e38cde5ae874263f5f7b0fa67b4706f12424e8dd3d586fcafb1bb3f5fb081c2f

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to known malicious redirectors, masquerading as a lure for free game currency and hacks. The embedded URLs, such as 'https://netcdn.xyz/app/406889139/free-coins-coin-master-2021-game-hack', are designed to lead users to potentially harmful content. The document's structure and content strongly suggest a phishing or scam attempt, likely delivered as a spearphishing attachment.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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/406889139/free-coins-coin-master-2021-game-hack In PDF document text
- http://domaizdereva24.ru/images/irobux-com-redeem_GM431946152.pdfIn PDF document text
- http://domaizdereva24.ru/images/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
- http://domaizdereva24.ru/images/free-spins-coin-master-links-2021_GM406889139.pdfIn PDF document text
- http://domaizdereva24.ru/images/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
- http://domaizdereva24.ru/images/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
- http://domaizdereva24.ru/images/coin-master-hack-mod-apk-35-8_GM406889139.pdfIn PDF document text
- http://domaizdereva24.ru/images/worst-client_GM479516143.pdfIn PDF document text
- http://domaizdereva24.ru/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
- http://domaizdereva24.ru/images/real-free-robux-generator_GM431946152.pdfIn PDF document text
- http://domaizdereva24.ru/images/free-coin-master-spins-for-today_GM406889139.pdfIn PDF document text
- http://domaizdereva24.ru/images/robux-hacks-2021_GM431946152.pdfIn PDF document text
- http://domaizdereva24.ru/images/how-to-download-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
- http://domaizdereva24.ru/images/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
- http://domaizdereva24.ru/images/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
- http://domaizdereva24.ru/images/give-me-robux_GM431946152.pdfIn PDF document text
- http://domaizdereva24.ru/images/free-vip-server-roblox_GM431946152.pdfIn PDF document text
- http://domaizdereva24.ru/images/minecraft-pocket-edition-free-download_GM479516143.pdfIn PDF document text
- http://domaizdereva24.ru/images/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
- http://domaizdereva24.ru/images/op-rewards-free-robux_GM431946152.pdfIn PDF document text
- http://domaizdereva24.ru/images/free-robux-only-username-no-human-verification_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_off00004726.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4726	25800 bytes
SHA-256: `e67babdb6f206cd9318d575b85e454fa49a3857567e4bbd0fdb4d29be91f8a3c`
`font_01_sfnt_off00008258.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8258	18112 bytes
SHA-256: `0727bd4027d3f5eec951b181c2bc31ee4d98e10eed2c862aff41d240a04f60ea`

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