Malicious PDF — malware analysis report

Static analysis result for SHA-256 12bc8184ebc10b0c…

MALICIOUS

PDF

32.9 KB Created: 2021-06-27 00:59:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d85533fc4f55e4645645aed232579429 SHA-1: ea79412fd3a2673bfd09260d0146f86e35b2991f SHA-256: 12bc8184ebc10b0cc55f174b79fdc29a207a712d0c3c9b5f8d8e23b1328f2bb1
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure, designed to lure users into downloading game hacks or cheats. The document body explicitly contains a call to action for a 'Robux Generator' and a link to 'http://netcdn.co/app/431946152/roblox-ccv3-speed-hack-game-hack', indicating a phishing or scam attempt. No scripts were extracted, but the embedded URLs and the nature of the lure strongly suggest a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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-ccv3-speed-hack-game-hack In PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-hack-robux_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/coin-master-offline-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-hack-ios-download_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/how-to-make-a-modded-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-booga-booga-hack-script_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/robux-claimer_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/hackear-roblox-cheat-engine_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/pointsprizes-com-earn-free-robux-legally_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/roblox-lumber-tycoon-cheats_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/free-minecraft-com_GM479516143.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/black-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/tiktok-free-hosting_GM835599320.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/pubg-uc-mtc_GM1330123889.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id//repository/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://muslib.unmus.ac.id/repository/best-free-minecraft-servers_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_off00002a18.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A18 21996 bytes
SHA-256: bffb62ef1089ec98180e4b7f5a35f110e2fcef25cd6af038f5d6b32f503f065e
font_01_sfnt_off00005ad0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AD0 19296 bytes
SHA-256: 79d29784199838f852f13e1914fbb70a38e25b3957807d002e15694f83a03b00

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