Malicious PDF — malware analysis report

Static analysis result for SHA-256 245670f42de53c38…

MALICIOUS

PDF

47.8 KB Created: 2021-05-17 22:39:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2fb89e7db70ecbe2db65bdd76352ff13 SHA-1: 6cd46b0221aec3abacec05700247f9c1c70be1ad SHA-256: 245670f42de53c38dfb2749d0b46c47b070ad76b10d80ce29ffda7bf75b3ad13
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as 'free generator' or 'game hack' lures. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves tricking users into clicking these links, which likely leads to further malicious content or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9013

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/give-me-free-robux-game-hack In PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/roblox-earn-robux_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-download_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/is-minecraft-free-on-pc_GM479516143.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/coin-master-coins-hack_GM406889139.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/coin-master-daily-free-spins_GM406889139.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/minecraft-for-chromebook-free_GM479516143.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/coin-master-gift-link_GM406889139.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/coin-master-free-spins-link-31-march-2021_GM406889139.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/aimbot-download-roblox_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/coin-master-hack-without-human-verification-2021_GM406889139.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/how-to-get-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.kraftyzone.com/uploaded_files/userfiles/files/free-coin-and-spin-link_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_off00004c82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4C82 26456 bytes
SHA-256: a7c8bf0aadb05604ba58e026d9ef947af1e93c6651979e55ef63355dd6bacecf
font_01_sfnt_off00008adc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8ADC 5696 bytes
SHA-256: 450e3ee45915afe13702bf1d587eb8b9ad88a8d2113419ac9f2fd116a828e139
font_02_sfnt_off000097ee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x97EE 18444 bytes
SHA-256: 68319dbf483afe81c5a4de3b3f5290fc223d358c0f75f000dd988daf46eb7eae

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