Malicious PDF — malware analysis report

Static analysis result for SHA-256 6a8e1e9a0ed2b220…

MALICIOUS

PDF

34.8 KB Created: 2021-06-29 12:20:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cb11e3ce7256598968ad0b1f857495f9 SHA-1: cf14989e5d313518941a37cc8be7c6f98708cc1a SHA-256: 6a8e1e9a0ed2b22031ffccfe429b4fe3687668f38191ff19a9aab375e565fbd1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'game hacks' for Roblox. The document body and embedded URLs suggest a lure to trick users into downloading potentially malicious software disguised as cheats or hacks. The presence of embedded URLs and the nature of the lures strongly indicate a phishing or social engineering attack aimed at driving users to malicious sites.

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/roblox-banning-simulator-hack-download-game-hack In PDF document text
    • http://library.stembi.ac.id/repository/free-robux-2021-working_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-free-suit-not-default_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/cheat-engine-sandbox-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-fencing-hack_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-working_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/cheats-roblox-vip_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-watch-videos_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-to-get-server-side-hacking-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-beta-warships-hack_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-ip-tracker-hack_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/earn-free-robux-rbx-blaster_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-hacks-jailbreak-download_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/robux-hack-video_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-roblox-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/roblox-elysian-level7-hack-exploit-new_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/youtube-how-to-get-free-items-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.stembi.ac.id/repository/is-minecraft-free-on-nintendo-switch_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
font_00_sfnt_off0000307e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x307E 22012 bytes
SHA-256: 9b32d7e0cd8f06ce7417144bfe34d96c952abd7731039f7f38f706556c7d2ee1
font_01_sfnt_off000060fa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60FA 19784 bytes
SHA-256: bfc4a5a2084a6ff37c4ab2b3333b5dc62cddd87b2c67948a604700931f17cc2d

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