Malicious PDF — malware analysis report

Static analysis result for SHA-256 15623926f884700c…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 01:59:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 88bbf11cf383cfd82e6faee667ac8a15 SHA-1: d4cbc79cc57168ad28ad9a7e4d93f5165d5a9cbb SHA-256: 15623926f884700cf5c568e82a3407458d411ff0d137ec3b56b6e9928cc7c689
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and lures related to game hacks and free currency, specifically targeting popular games like Roblox and Coin Master. The primary URL, http://netcdn.tw/app/431946152/free-roebucks-no-human-verification-game-hack, is identified as a redirector to potentially malicious content. While no scripts were explicitly extracted, the nature of the lures and the embedded URLs strongly suggest an intent to direct users to phishing or scam websites, likely as part of a broader social engineering campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/431946152/free-roebucks-no-human-verification-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id//repository/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/robux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-hack-version-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-black-suit-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-robux-hack-generator-survey-and-no-download_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/download-roblox-for-free-on-laptop_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-clone-tycoon-v-12-cheats_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-free-spins-link-whatsapp-group_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/sound-space-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/roblox-generator_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-how-to-get-passes-for-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-catalog-items-on-roblox-vortex_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-free-download-android_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/cm-spin-link_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-pin_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_off00003191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3191 22356 bytes
SHA-256: 2fcf0ea1ef4e59bce49d46a655669e80edadfb515a13406c68c4b85efdc5c0fb
font_01_sfnt_off00006358.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6358 19296 bytes
SHA-256: cc9c5a95e89479f65faae98250eeca370e5ba8f51e12989c5a527e80fde28b16

Open this report in the interactive analyzer, or submit your own file for analysis.