PDF malware analysis — malicious · 86c06cb7357e5c09

MALICIOUS

PDF

35.5 KB Created: 2021-06-27 05:50:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: f6c1edd52fda66cbbea067d82075e623 SHA-1: 0883011a21f3accec8e6d3c1d3d099bf8dc7d943 SHA-256: 86c06cb7357e5c09009c5f1209ed4b0f8e0dcb0ba74e5eb4f7f6c95aa454b866

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free Robux' and game hacks. The primary lure URL is http://netcdn.co/app/431946152/how-to-get-free-robux-if-your-a-kid-game-hack, which is flagged as a malicious redirector. The document body and heuristics indicate a social engineering tactic to trick users into visiting these malicious sites, likely for further exploitation or credential harvesting.

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 http://netcdn.co/app/431946152/how-to-get-free-robux-if-your-a-kid-game-hack In PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/how-to-download-minecraft-for-free-on-windows-10_GM479516143.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-roblox-accounts-with-pins_GM431946152.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-roblox-shirt-templates-2021_GM431946152.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/roblox-login-hack-password_GM431946152.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/how-to-get-free-items-in-roblox-no-fake_GM431946152.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/roblox-pokemon-brick-bronze-how-to-get-free-eve_GM431946152.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-robux-stream_GM431946152.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-online-multiplayer-games-like-roblox_GM431946152.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-spin-coin-master-2021-link_GM406889139.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/goud-info-roblox-hack_GM431946152.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/coin-master-free-spins-11-01-2021_GM406889139.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/free-minecraft-server_GM479516143.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/moonactive-coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- http://ma-hidayatulinsanpky.online/__statics/gudangsoal/files/roblox-vehical-cheats_GM431946152.pdfIn PDF document text
- http://www.ma-hidayatulinsanpky.online/__statics/gudangsoal/files/hacks-and-cheats-for-coin-master_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
`font_00_sfnt_off00003223.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3223	22668 bytes
SHA-256: `67f2f69b9b1e705d40c77cd93f05f2c2ffcee4d5dc6ac9490dd3e47a12a97122`
`font_01_sfnt_off000064bc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64BC	19440 bytes
SHA-256: `3a9f7b421798045b72cbab4e16f1d1c2bc117567a78ff4fef080b7920a33cf10`

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