PDF malware analysis — malicious · 2fa5307b74a9ef14

MALICIOUS

PDF

44.3 KB Created: 2021-05-10 17:08:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27

MD5: 5880ec31c41da376446a2da981732bc1 SHA-1: f407f05b1a99c359dde9a4a27b6ddee975045c55 SHA-256: 2fa5307b74a9ef14a74f763dd2409ed493e7fbf0ead3bc2e2c3fb178ceceb397

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains links that redirect to known malicious infrastructure, specifically promoting 'free generator / game hack' lures. The document body, though heavily obfuscated, contains a URL matching the heuristic findings. The presence of embedded links and the nature of the lure suggest an attempt to direct users to potentially harmful content or further malicious downloads.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

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/479516143/free-minecraft-survival-server-game-hack In PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/roblox-arsenal-hack_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/earn-robux_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/can-i-get-robux-for-free_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/minecraft-net-free_GM479516143.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/websites-that-give-free-robux_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/roblox-source_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/coin-master-hack-https-coinms-net_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/sb-game-hacker-coin-master_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-minecraft-thumbnails_GM479516143.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-robux-come_GM431946152.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/how-to-get-free-spins-and-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/coin-master-free-link-today_GM406889139.pdfIn PDF document text
- https://e-learning.man1wonosobo.online/__statics/gudangsoal/files/free-roblox-pin-codes_GM431946152.pdfIn PDF document text
- https://discord.ggIn 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_off00004c58.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C58	28148 bytes
SHA-256: `deeda5c6f60f9325e8b87128532d9974a3650e53f7aa27797a68b691c5c134cd`
`font_01_sfnt_off00008c4d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8C4D	17896 bytes
SHA-256: `a416ee995e2fcdad104e8f08570a8c057a7877f0093c65a8eab662d227b30cb8`

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