Malicious PDF — malware analysis report

Static analysis result for SHA-256 fb54e0b4c0424e3f…

MALICIOUS

PDF

34.6 KB Created: 2021-06-22 04:14:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e47ab7ef80f6bc6f7c6b6b77939269ff SHA-1: 20063562cd598b35c62fa7e3b219a5a4c888bb44 SHA-256: fb54e0b4c0424e3fdb0c8e4077855f15f6eb284cb1833e224aa7ec6869238f08
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, masquerading as game hacks and generators. The presence of a download button lure and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content. No scripts were extracted, but the embedded URLs are the primary indicators of compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/431946152/christmas-tree-hack-roblox-game-hack In PDF document text
    • http://www.compusiteinc.com/images/coin-master-free-spins-link-2021-download_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://www.compusiteinc.com/images/best-site-for-free-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/free-roblox-promo-codes-2021-august_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/robux-free-online_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/coin-master-free-100-spin_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/free-robux-donation_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/dead-winter-roblox-hack_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/60-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://www.compusiteinc.com/images/roblox-redeem-codes-free-2021_GM431946152.pdfIn PDF document text
    • http://www.compusiteinc.com/images/roblox-adopt-me-hack_GM431946152.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
font_00_sfnt_off00002e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E81 22812 bytes
SHA-256: 848a3d44c6635fdd02c725000b2d2391acb7f7df4085484ba2db446e1e261212
font_01_sfnt_off00006185.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6185 19308 bytes
SHA-256: 7aba42df5db73d8fbbaa8348e149fa51afff08b9b160bb1cc023cb9bb5593d59

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