Malicious PDF — malware analysis report

Static analysis result for SHA-256 1ed5c7efa7626a86…

MALICIOUS

PDF

32.4 KB Created: 2021-07-08 20:18:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8fa7a8d58ba8682a380c174b5cabe457 SHA-1: 93b98abb7ca7d43eea84cbc1df4fcc4e1cc8a77b SHA-256: 1ed5c7efa7626a86c5946db977a5d6a35199683b5d22a59cffe2ac6c38c4ad38
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically advertising game hacks and generators. The ML classifier also flagged this PDF as malicious. The document body text and embedded URLs strongly suggest a lure to trick users into downloading potentially malicious files or visiting phishing sites related to popular games like Roblox and Minecraft.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.tw/app/431946152/roblox-com-free-play-game-hack In PDF document text
    • https://shjbottle.com/upload/files/robux-gift-card-2021-hack_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/www-rbxhut-com_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/hack-master-coin-pc_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/make-free-robux-com_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/fbchampion-com_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/counter-blox-roblox-offensive-hack-money_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-free-unlimited-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-hack-unlimited-spins-apk_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/how-to-get-free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/minecraft-tower-defense-hacked_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/cheat-roblox-lumber-tycoon-2-money_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/minecraft-world-free-download_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-hack-unlimited-spins-apk-download_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/simple-roblox-hack-hp_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/free-robux-alex_GM431946152.pdfIn PDF document text
    • https://shjbottle.com/upload/files/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • https://shjbottle.com/upload/files/roblox-catalog-free_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.

FilenameKindSourceSize
font_00_sfnt_off000028ef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x28EF 21920 bytes
SHA-256: 68c97ebcba5a542d2a4ac0dc67283d124c5abbbac191d16df53f24307513f937
font_01_sfnt_off00005979.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5979 19244 bytes
SHA-256: 757b6080daffd378f956ea9d87277f97d9d8e28a161ab3cdc6c6420d2ff89f96

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