PDF malware analysis — malicious · 76e2b782e2d6f9a3

MALICIOUS

PDF

43.1 KB Created: 2021-05-15 04:06:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: dc9f87cbde889d4bddbee04b080c3887 SHA-1: 20a85390c93913968898225024b0c84069ad63b8 SHA-256: 76e2b782e2d6f9a3cef00ad54001d908f1a4ca11b02d565b3e2b35b92ce11be8

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

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 0.9969

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/how-many-levels-in-coin-master-game-hack PDF link annotation
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-hack-pc_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/minecraft-bedrock-free-server-hosting_GM479516143.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/minecraft-tools_GM479516143.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-pc-hack_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-money-and-spins-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/minecraft-coins-free_GM479516143.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/roblox-game-free-download_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-coin-link_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/roblox-sign-in-free_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/free-roblox-exploits_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/roblox-rewards-robux_GM431946152.pdfIn PDF document text
- https://elearning.mayastisingkawang.com/__statics/gudangsoal/files/coin-master-hack-apk-download-2021_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
`stream_003_off00004a28.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A28	26116 bytes
SHA-256: `ff8b00245826366c596291982cd4bfaa60f6762d34208002570f8bcd8ea74074`
`font_01_sfnt_off000086d5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x86D5	18076 bytes
SHA-256: `99893503d576b54c6a7779c175b2bfa9d44389b8fa70f32573e8e1493170e333`

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