PDF malware analysis — malicious · b58e195d3f333c5c

MALICIOUS

PDF

47.2 KB Created: 2021-05-15 02:32:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 6b57871716bcfe93a7e58151c8f69a26 SHA-1: 69cb94793cf701eef05d43b547489568951126a2 SHA-256: b58e195d3f333c5c299ce3920644d807947c08e35bb68bdd757748e2e91e7233

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a 'free generator / game hack' redirector. The document body and embedded links further support this, pointing to URLs related to game hacks and free currency. While no scripts were extracted, the presence of external URIs and the ML classifier's high confidence suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.8948

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/more-robux-game-hack PDF link annotation
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/is-coin-master-hacks-safe_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-hack-programmers_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/www-roblox-robux_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/will-minecraft-ever-be-free_GM479516143.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-minecraft-accounts-2021_GM479516143.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/can-you-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/daily-free-coin-and-spin-link-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/how-can-i-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-free-spins-link-today-new-2021_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-game-for-pc-free-download_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/minecraft-client-download_GM479516143.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-rewards_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/coin-master-card-collection-link_GM406889139.pdfIn PDF document text
- https://www.elearning-masalbidayah.net/__statics/gudangsoal/files/master-coin-master-free-spin_GM406889139.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_003_off00004d02.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4D02	27040 bytes
SHA-256: `4169dec9df4732e49f5f2402a731955fd9887a9e5e755437336780827a4a4749`
`font_01_sfnt_off00008a50.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A50	3884 bytes
SHA-256: `40b61f8938bd710dc29dc58ba3fde91c245a6a69596ec569b4d27c769ca417cf`
`font_02_sfnt_off000096f7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x96F7	18044 bytes
SHA-256: `2cdd30725ec16b560af68fa44fbb44b377c0aea3ee608aeb4cb73b855c777d19`

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