PDF malware analysis — malicious · 9abc2b8756bc6c71

MALICIOUS

PDF

35.2 KB Created: 2021-06-28 13:19:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: d986fb4e17e56915f029aa4748c6e29e SHA-1: a66f6c8f16b3b83b3d52fb05d89656ffcdc42b13 SHA-256: 9abc2b8756bc6c7180f50ff5e9c984c3a417c7c3da7a51fc0b6077aa332aaa84

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector, specifically http://netcdn.co/app/431946152/free-robux-co-uk-game-hack. The document body and embedded URLs suggest a lure for game-related cheats or currency, a common tactic for distributing malware. The presence of a visual download button further supports the malicious intent.

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/free-robux-co-uk-game-hack In PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-jailbreak-speed-hack-2021_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/can-you-get-hacked-on-roblox-with-2-step-verification_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-free-password-and-usernames_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-free-online-game_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-skins-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/the-neighbourhood-roblox-money-hack_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-raindrop-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-jailbreak-hack-exploit-download_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/roblox-com-free-download_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/hacks-para-roblox-adopt-me_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/free-ninja-run-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/como-hackear-electric-statesrp-roblox_GM431946152.pdfIn PDF document text
- https://elearning.mtsn9blitar.online/__statics/gudangsoal/files/cant-make-my-items-free-in-roblox_GM431946152.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_off000031b2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31B2	22848 bytes
SHA-256: `d1930ba5a5b1455d5c56e960ab6f767285baca137e83e1fc521a1330dd8bf85e`
`font_01_sfnt_off00006502.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6502	18884 bytes
SHA-256: `a8634a641ba7497391bcd16f02a28480c2e774154a656dfabe90231ea5750c2d`

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