Malicious PDF — malware analysis report

Static analysis result for SHA-256 6416a2dec6b5d33e…

MALICIOUS

PDF

36.0 KB Created: 2021-06-29 23:43:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0c11c83eedae50be122300a2029328bd SHA-1: 09aef64d4aeda4612cbfb6d214e4d8a7637e16f2 SHA-256: 6416a2dec6b5d33e842c664e82074bc82758cd29aaccd974a79b55f0b2c768f6
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to a known malicious redirector, disguised as game hacks and free item generators for popular games like Roblox. The document body and embedded URLs strongly suggest a social engineering lure to trick users into visiting malicious sites. The presence of embedded links and the nature of the lure indicate a likely spearphishing attachment campaign.

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-jailbreak-speed-hack-update-codes-2021-yasser-gamingyt-game-hack In PDF document text
    • http://library.atim.ac.id/repository/new-free-items-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-free-hats_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-2021-june_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-jailbreak-nuevo-menu-de-hacks-actualizado-rocket-fuel_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-premium-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-hack-no-robot-verification_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-hack-tool-ios_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-robux-on-xbox-one-for-free_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/robux-free-com_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-phantom-forces-cheats-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/noclip-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/coin-master-daily-bonus-hack_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/roblox-hack-how-to-get-free-robux-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.atim.ac.id/repository/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://library.atim.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://library.atim.ac.id/repository/free-robux-android-2021_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_off000032e1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32E1 21984 bytes
SHA-256: f976035f7f2f79cf8975dbc607b21f744ee6c225eb35657b90f096a005d66cdb
font_01_sfnt_off0000638f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x638F 20400 bytes
SHA-256: a54bf2caf3dde43e300802e57af3af0251bf71d780bb8aec563feb4b56c749dc

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