Malicious PDF — malware analysis report

Static analysis result for SHA-256 00daf634c3a51078…

MALICIOUS

PDF

36.6 KB Created: 2021-06-23 02:35:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c26321ec1cb7b531b77afc03bbad0b46 SHA-1: 6e9b0f6b8e490611652e70cbb29afd4e50a172bd SHA-256: 00daf634c3a51078974909c02a8525a0d6efab3a8f9e9338f5841cf6972e540f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.co/app/406889139/kachifpro-game-hack. The document body and heuristics suggest a lure for game hacks or cheats, which is a common tactic for distributing malware. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9886

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/406889139/kachifpro-game-hack In PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/roblox-promocodes-hack-2021_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/rape-simulator_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-free-coins-app_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/actual-free-robux_GM431946152.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/coin-master-free-spins-link-quora_GM406889139.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/is-minecraft-free-on-xbox_GM479516143.pdfIn PDF document text
    • https://www.hearcolors.com.mx/img/blog/files/free-spin-coin-master-hack-2021_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_off00002f32.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F32 23112 bytes
SHA-256: 59286fa661eefd85ac3bec6b0b88b083ebc5f7fdea8405755cc281b0de569ab0
font_01_sfnt_off00006322.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6322 2896 bytes
SHA-256: c1a618813a64314343402b2ec738fc11c4c912460a4c7ae3029924d2f9a229cd
font_02_sfnt_off00006d07.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6D07 18072 bytes
SHA-256: 72a3da90a05afc5dc46f93167f9d09aeeb78081726754e710800ebd664932104

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