Malicious PDF — malware analysis report

Static analysis result for SHA-256 23e707e38a53843d…

MALICIOUS

PDF

47.2 KB Created: 2021-05-18 03:04:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bc2d8272112bc32e074bd8d87fb0c7a5 SHA-1: ae6f6dc63621efa0fca1571c9da69fd668db9fef SHA-256: 23e707e38a53843d8af367e7a5746a446de301bf100e5c4f7a9b9dfc5dfd8458
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple heuristics indicating it links to malicious redirectors and lures users with game-related cheats. The embedded URL, https://netcdn.xyz/app/406889139/how-to-hack-coin-master-2021-game-hack, is identified as a malicious redirector. The document body, though partially corrupted, also contains this URL and suggests a 'free generator / game hack' lure, aligning with the heuristic findings. No scripts were extracted, but the primary attack vector appears to be social engineering via a malicious link within the document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8619

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/406889139/how-to-hack-coin-master-2021-game-hack In PDF document text
    • https://ethraa.ae/userfiles/files/robux-fun-hack_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-minecraft-printables-food-labels_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/minecraft-pe-hack-client-2021_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/best-free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/wahoogaming-co-free-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-install-free_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/getrobux-ninja_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/get-me-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/roblox-people-girl_GM431946152.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/cm-spins_GM406889139.pdfIn PDF document text
    • https://ethraa.ae/userfiles/files/picture-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000476b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x476B 25560 bytes
SHA-256: 776c007136d70d574c270223d0096a18a3dda182d53368cb74a763b705bba8fc
font_01_sfnt_off000080b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80B2 2928 bytes
SHA-256: 0bb26577d52c8d51e00ad4edc5eaecc41f30204c62dca387b29f5eedfceecc2d
font_02_sfnt_off00008acf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ACF 18284 bytes
SHA-256: 2ae8d3f2cbcae8cb3753deb1cb0690858b25682b169ed1ca9b91685ca7cd6d7f
font_03_sfnt_off0000ad03.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xAD03 3264 bytes
SHA-256: e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088

Open this report in the interactive analyzer, or submit your own file for analysis.