Malicious PDF — malware analysis report

Static analysis result for SHA-256 410e07df7e0c3474…

MALICIOUS

PDF

45.8 KB Created: 2021-05-15 17:21:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 44c0084a1a7099747f4186c353f6b214 SHA-1: 94cb9123d26aca949d6e5e62e688af9e38e47072 SHA-256: 410e07df7e0c3474b85a1ba32f02953a321921ecfe983ba70d3d57b48add6605
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector, disguised as "free Robux generators" or "game hacks". The presence of these links, coupled with the ML classifier flagging this PDF as malicious, strongly suggests a phishing or scam attempt. While no scripts were explicitly extracted, the PDF structure and embedded links are indicative of a lure designed to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9912

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/431946152/free-robux-codes-no-verification-game-hack In PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/get-free-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/free-robux-gen_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/free-roblox_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/free-robux-stream_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/daily-free-spins_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/minecraft-survival-free_GM479516143.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/free-spins-coin-master-apple_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/coin-master-hack-ios-no-verification_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/free-robux-wheel_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/roblox-scam_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/mathep_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/roblox-redeem-codes-free_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/free-pet-food-coin-master_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/coin-master-mod-version-free-download-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/oprewards-com-login_GM431946152.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
    • https://www.elearning.mtsn1lomboktimur.com/__statics/gudangsoal/files/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004894.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4894 26724 bytes
SHA-256: 68af94f02711ee754db44ae8f547146f58b40b0b3ed871ae76f739284c9d4cf4
font_01_sfnt_off000085b9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85B9 2832 bytes
SHA-256: 77ae1c4cffa647a8fd533dfa4102e94364989f9e80b9cd131876e9d1005899a2
font_02_sfnt_off00008f69.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F69 18776 bytes
SHA-256: 1501cc25bcf8c3b3bf9df14f68216c1cc39cc5b0131e4343b63bafa21afb9c06