Malicious PDF — malware analysis report

Static analysis result for SHA-256 db90628f830e8e48…

MALICIOUS

PDF

43.7 KB Created: 2021-05-15 01:44:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 5216170c6aaf9ce8eb919d6a7a7cd752 SHA-1: d11230a67e23f7ae061c624d78b84a3dc192f58a SHA-256: db90628f830e8e48fc142b10415b866ffda447e30db14d5285c4f994b353364b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that redirect to a "free generator / game hack" lure, identified as a malicious redirector. The document body, though partially corrupted, contains text related to game hacks and includes a call-to-action phrase, reinforcing the lure. The presence of multiple malicious links and the ML classifier's high confidence score indicate a deliberate attempt to trick users into visiting potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

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/coin-master-tiradas-gratis-link-game-hack In PDF document text
    • http://modlingua.com/images/flip-master-free-coins_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/universal-minecraft-converter-free_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/roblox-place-rewards_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/moon-static-coin-master-generator-hacks-free_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/mcpe-master-hack-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/roblox-exploit-scripts_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/appsmobinfo-coinmasterhack-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-game_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/master-coin-free_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/static-moonactive-net-free-spins_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/how-to-download-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • http://modlingua.com/images/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/como-hackear-coin-master_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/free-robux-generator-without-human-verification_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/coin-master-free-spin-codes_GM406889139.pdfIn PDF document text
    • http://modlingua.com/images/free-robux-hack-no-verification_GM431946152.pdfIn PDF document text
    • http://modlingua.com/images/minecraft-free-minecoins_GM479516143.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
stream_003_off0000498d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x498D 30224 bytes
SHA-256: 5c8dc4ba3a427d84d6a30d2f3eefeca4bee91bb697bb4eb7f84e06cb70ec9060
font_01_sfnt_off000089a5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89A5 17888 bytes
SHA-256: 7e3d0d6e3169ec9d1b4a39f1a8de513868e09ebca0bcabadf274b5e058877262

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