Malicious PDF — malware analysis report

Static analysis result for SHA-256 8f69cd52ad96c0d1…

MALICIOUS

PDF

32.7 KB Created: 2021-06-27 04:44:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 08301632a00db440db38b55a3625e334 SHA-1: 6508a6e41a7756b9db0a5d9a4dc17394423ea03d SHA-256: 8f69cd52ad96c0d14f2184804dd8d025c79d64000d88e2e675d49107991f25a8
160 Risk Score

Malware Insights

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

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks and free currency. The primary link, http://netcdn.co/app/431946152/emperor-roblox-hack-download-game-hack, is identified as a malicious redirector. The document body explicitly mentions "Emperor Roblox Hack Download" and "CLICK HERE TO ACCESS ROBUX GENERATOR", indicating a social engineering lure to drive users to potentially malicious sites or downloads.

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/emperor-roblox-hack-download-game-hack In PDF document text
    • http://lib.stimykpn.ac.id/repository/free-spins-coin-master-ios-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-stream_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-real_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hyper-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-change-your-speed-no-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/50-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/the-neighbourhood-roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-cheat-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-stuff-in-the-roblox-catalog_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-roebucks-com_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-robux-on-iphone_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-hack-without-verification-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/lazyblocks-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-2021-link_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-free-coin-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000029c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x29C3 21580 bytes
SHA-256: e0690040bcf9650e7517bdce02aeb4567793765636e91981f8eaa57ccb13b969
font_01_sfnt_off0000591b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x591B 19596 bytes
SHA-256: ecb6870977e4e931f7121b1e8d5fb9effd8545cff8e5f07bdca69389db75b636

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