Malicious PDF — malware analysis report

Static analysis result for SHA-256 d7eebee4e55b5706…

MALICIOUS

PDF

43.4 KB Created: 2021-05-17 09:17:25 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8fb93a52a0d38e7082c7fda6ff1f2b50 SHA-1: 7dd51500251c8c4bc827a00ca0cfb7b2cb627bb5 SHA-256: d7eebee4e55b570618c320396c9b0a7014ab1d0da4974f6c5ddcff2be8f19ba0
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains multiple links that redirect to malicious infrastructure, specifically targeting users with lures related to game hacks and free in-game currency. The presence of multiple redirector links and the ML classifier's high confidence score indicate a malicious intent to lead users to potentially harmful websites. No scripts were extracted, but the embedded URLs and heuristic firings strongly suggest a phishing or scam campaign.

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/431946152/apps-to-get-free-robux-game-hack In PDF document text
    • https://www.ausecus.com/images/coin-master-game-free-spin-download_GM406889139.pdfIn PDF document text
    • https://www.ausecus.com/images/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/how-to-earn-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://www.ausecus.com/images/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://www.ausecus.com/images/how-to-get-free-minecoins-in-minecraft_GM479516143.pdfIn PDF document text
    • https://www.ausecus.com/images/coin-master-facebook_GM406889139.pdfIn PDF document text
    • https://www.ausecus.com/images/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://www.ausecus.com/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/free-executor-roblox_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/how-to-get-100-robux-for-free_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/roblox-exploit-download_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
    • https://www.ausecus.com/images/how-to-make-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • https://www.ausecus.com/images/mathep_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/roblox-robux-hack_GM431946152.pdfIn PDF document text
    • https://www.ausecus.com/images/minecraft-windows-10-mod-menu_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_off00004bdc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4BDC 25480 bytes
SHA-256: 62ffc25bf19a8cc71837772c9e923a656fedbda17d96d4f9af173587878360e0
font_01_sfnt_off00008724.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8724 18292 bytes
SHA-256: b4e5860ebf2343f9b18b94d86a305cbc7e8ebd2f2a6bfe7ceeed88b67548d8bf