PDF malware analysis — malicious · cf836a98f3c6d25b

MALICIOUS

PDF

48.5 KB Created: 2021-05-12 20:06:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 944460d31217688ef7995a68db591573 SHA-1: 526d1dadcc7a093aa0eb9c7c0f67793e4e43dbcf SHA-256: cf836a98f3c6d25bfdbb34b1cf2fb7ef5e5f58b33be4157ab1fc805488618d9e

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file contains multiple embedded URLs that redirect to websites offering game hacks and generators, such as for 'Coin Master'. The heuristic 'PDF_GAME_HACK_REDIRECT_LURE' strongly suggests a malicious intent to trick users into visiting these sites. While no scripts were explicitly extracted, the nature of the lures and the embedded URLs indicate a likely attempt to deliver a second-stage payload or phish for credentials.

Machine Learning

Nyx PDF Classifier malicious score 0.8642

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/406889139/mangocheats-com-hack-coin-master-cheat-game-hack PDF link annotation
- http://mou16-murmansk.ru/images/best-coin-master-hack_GM406889139.pdfIn PDF document text
- http://mou16-murmansk.ru/images/coin-master-free-spins-and-free-coins_GM406889139.pdfIn PDF document text
- http://mou16-murmansk.ru/images/irobux-com-redeem_GM431946152.pdfIn PDF document text
- http://mou16-murmansk.ru/images/free-links-to-coin-master_GM406889139.pdfIn PDF document text
- http://mou16-murmansk.ru/images/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
- http://mou16-murmansk.ru/images/try-coin-master-hack_GM406889139.pdfIn PDF document text
- http://mou16-murmansk.ru/images/minecraft-java-free-account_GM479516143.pdfIn PDF document text
- http://mou16-murmansk.ru/images/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
- http://mou16-murmansk.ru/images/roblox-2021_GM431946152.pdfIn PDF document text
- http://mou16-murmansk.ru/images/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://mou16-murmansk.ru/images/coin-game_GM406889139.pdfIn PDF document text
- http://mou16-murmansk.ru/images/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
- http://mou16-murmansk.ru/images/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- http://mou16-murmansk.ru/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- http://mou16-murmansk.ru/images/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
- http://mou16-murmansk.ru/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- http://mou16-murmansk.ru/images/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
- http://mou16-murmansk.ru/images/free-minecraft-maps_GM479516143.pdfIn PDF document text
- http://mou16-murmansk.ru/images/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
- http://mou16-murmansk.ru/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004935.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4935	25232 bytes
SHA-256: `68d489ada186a67795c0b9f6e967a75c924a80e3fdab859f24ae0621e36fc520`
`font_01_sfnt_off0000831e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x831E	4028 bytes
SHA-256: `a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91`
`font_02_sfnt_off000090be.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90BE	2788 bytes
SHA-256: `6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530`
`font_03_sfnt_off00009aad.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9AAD	18428 bytes
SHA-256: `4e99dec5d3f02dcbc06ca26300d3045f9b8d8d35bff9f7dc87105fb536b7f18c`

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