Malicious PDF — malware analysis report

Static analysis result for SHA-256 1e504b08ffe44f23…

MALICIOUS

PDF

42.3 KB Created: 2021-05-20 05:12:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 265fb04f35f471f52a3595d0af9222bb SHA-1: 25d58965579ef72616587ff4cd2a8988160c05e2 SHA-256: 1e504b08ffe44f2328db194f2b85589e84cb4d0102a2247a4cc3900ae3d8aee0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising "free generator / game hack" content. The embedded URLs, such as https://netcdn.xyz/app/1330123889/pubg-uc-olx-game-hack, are designed to lead users to potentially harmful sites. The presence of a visual download button lure further supports the malicious intent of this document.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/1330123889/pubg-uc-olx-game-hack In PDF document text
    • http://pesok-rk.ru/images/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • http://pesok-rk.ru/images/roblox-www-com_GM431946152.pdfIn PDF document text
    • http://pesok-rk.ru/images/how-to-install-minecraft-for-free-on-ios_GM479516143.pdfIn PDF document text
    • http://pesok-rk.ru/images/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • http://pesok-rk.ru/images/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • http://pesok-rk.ru/images/robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://pesok-rk.ru/images/free-exploits-for-roblox_GM431946152.pdfIn PDF document text
    • http://pesok-rk.ru/images/coin-master-fan-page-facebook_GM406889139.pdfIn PDF document text
    • http://pesok-rk.ru/images/free-spin-coin-master-today_GM406889139.pdfIn PDF document text
    • http://pesok-rk.ru/images/coin-master-free-spins-for-iphone_GM406889139.pdfIn PDF document text
    • http://pesok-rk.ru/images/haktuts-coin-master-today_GM406889139.pdfIn PDF document text
    • http://pesok-rk.ru/images/free-bedrock-minecraft_GM479516143.pdfIn PDF document text
    • http://pesok-rk.ru/images/coin-master-pc-game-free-download_GM406889139.pdfIn PDF document text
    • http://pesok-rk.ru/images/coin-master-hack-unlimited-spins-and-coins-cheats_GM406889139.pdfIn PDF document text
    • http://pesok-rk.ru/images/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://pesok-rk.ru/images/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
    • http://pesok-rk.ru/images/minecraft-windows-10-free-code_GM479516143.pdfIn PDF document text
    • http://pesok-rk.ru/images/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • http://pesok-rk.ru/images/coin-master-heaven-free-spins_GM406889139.pdfIn PDF document text
    • http://pesok-rk.ru/images/coinmasterhack-club_GM406889139.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_off000042ab.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42AB 29452 bytes
SHA-256: 4338acbf4405b196c0b39b42ff35d4ba61e4ce2fac7b82c4c1a6be1be4fbefb4
font_01_sfnt_off00008354.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8354 18184 bytes
SHA-256: 1fece8713e268b70d55d582460febe23bc6f393f3d5c1c54e6945237c9e6ee63