Malicious PDF — malware analysis report

Static analysis result for SHA-256 a6243b9aba0f897f…

MALICIOUS

PDF

35.2 KB Created: 2021-07-08 05:40:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dc6fd8f9cccd73293f3b0e09fae8e71c SHA-1: 0b153020a4060550997ce0d71c9b7db1def81a49 SHA-256: a6243b9aba0f897f9e0a2f55a509bfae601b9d792a4354147424bed4787d9865
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to entice users to click on links. The primary link directs to a known malicious redirector infrastructure, which in turn serves further malicious PDF files. The document body contains numerous URLs related to game hacks and exploits, reinforcing the deceptive nature of the lure.

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.tw/app/406889139/coin-master-free-spins-link-june-2021-game-hack In PDF document text
    • http://digilib-ppsunisma.ac.id/repository/realhack-for-roblox-real-coding-hack-for-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/the-most-opiest-script-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-hack-download-pc_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/youtube-roblox-get-free-money-on-rocitizens_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-make-hack-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/rob-hacker-robux_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-real-2021_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-dragon-ball-rage-stats-hack-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/hack-dragon-ball-rage-roblox-android_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-jailbreak-noclip-hack_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/minecraft-xbox-one-edition-digital-code-free_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/free-robux-no-verification-ipad_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/minecraft-windows-free_GM479516143.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-how-to-get-infinite-robux2021-no-hack-no-cheats_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-free-hood_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/roblox-free-money-generator_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/win-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib-ppsunisma.ac.id/repository/create-minecraft-server-free_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_off0000313d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x313D 22952 bytes
SHA-256: 4c13168da0c57d09c18cce93d7c5c76f898cf09ac9fe88b5913a413ce6cd3fb5
font_01_sfnt_off0000647c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647C 19052 bytes
SHA-256: da088671e108859af3dc13ad18939fcd6ad3c9e33d2991314a6b018d2c6434df

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