Malicious PDF — malware analysis report

Static analysis result for SHA-256 e0d19764638c6e4d…

MALICIOUS

PDF

35.2 KB Created: 2021-06-27 08:04:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0b306a06033cbb71fe6d7ac60f9551cd SHA-1: 83bdcee46e8d88adfa44561ed7532704cd46bbba SHA-256: e0d19764638c6e4de49ceed07a35324279da7a2168e29627225d2165a3005903
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a lure for game hacks and cheats, directing users to a URL hosted on known malicious infrastructure. This suggests a phishing or scam attempt designed to lead users to potentially harmful content or further malicious downloads. The ML classifier also strongly indicated maliciousness.

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-use-cheat-engine-on-roblox-august-2021-game-hack In PDF document text
    • https://www.similar.com.tw/upload/files/roblox-xbox-free-items_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-gold-suit-roblox_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/coins-master-hack_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-robux-exe_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/roblox-free-robux-maps_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-robux-for-kids_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/download-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/alone-battle-roytale-roblox-hacks-script-copy-aimbot-esp_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/freer-pro-tiktok-fans_GM835599320.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/buy-free-items-roblox_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/is-minecraft-free-on-switch_GM479516143.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/pastebin-hack-robux_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-robux-hack-generator-2021_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-robux-2021-no-verification_GM431946152.pdfIn PDF document text
    • https://www.similar.com.tw/upload/files/free-robux-generator-no-human-verification-or-surveys_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_off000030b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30B7 22484 bytes
SHA-256: 195a0673aff8bddcb773c768bfa6356f6d5c809c1c7493bd6928647841694b2c
font_01_sfnt_off000062ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62AD 19580 bytes
SHA-256: 22d7782d7c4b60faf2abd852a3b4a99e9839009be3ec241726f772c1ac75a63a