Malicious PDF — malware analysis report

Static analysis result for SHA-256 29ce88b29049dc6f…

MALICIOUS

PDF

34.5 KB Created: 2021-06-28 16:05:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: cc55a2eb2de4dc408db1c6c9c907708a SHA-1: 3fccf540e79ec5dbc5843341e121e98484d101f6 SHA-256: 29ce88b29049dc6f005d223fd73a67ccafe84b9ef24e7c279587b4031c1aff66
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirector infrastructure, specifically advertising 'free generator / game hack' lures. The document body and embedded URLs reinforce this theme, aiming to trick users into visiting these sites. The ML classifier also strongly indicated maliciousness.

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/free-roblox-noob-gameplay-game-hack In PDF document text
    • http://library.yamasi.ac.id/repository/minecraft-auto-miner-hack_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/kuso-icu-roblox-hack_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/free-robux-without-verification_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/walking-through-hack-roblox-78_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-grand-blox-auto-5-lights-cheats_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/t-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/how-to-get-cheat-engine-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-hack-without-verification-code_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/minecraft-bedrock-client_GM479516143.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/pubg-uc-vpn_GM1330123889.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-spin-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-cheats-how-to-get-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/exploring-free-rs-roblox_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/roblox-how-to-get-free-robux-no-hacks-no-glitches_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/coin-game_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/coin-master-mod-apk-hack_GM406889139.pdfIn PDF document text
    • http://library.yamasi.ac.id/repository/free-hair-roblox-2021_GM431946152.pdfIn PDF document text
    • http://library.yamasi.ac.id//repository/android-coin-master-hack_GM406889139.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_off00002ecd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ECD 22480 bytes
SHA-256: 53e3c2128a21fe673aa0b0b3f24dd535cade47e8c3af5cd6de2472868f19078c
font_01_sfnt_off000060ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x60ED 19264 bytes
SHA-256: 109a604bc13b77070bfb3fd5bd904e9a07f83de67a4b0a1a6a8f0dd9f7d99b6f

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