Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9f7323df976f71e…

MALICIOUS

PDF

33.5 KB Created: 2021-07-04 17:26:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 852f2e76908d376f80ea81c438041b58 SHA-1: 4fb21ee4a4ee83488b6fe131e227c0578682fcff SHA-256: e9f7323df976f71ef5ebac55be880a72a03c873f5feacf4d4de35abd13ebe2f3
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to websites offering game hacks and cheats, including a primary link to 'netcdn.tw'. The ML classifier strongly indicates maliciousness, and the heuristics confirm the presence of external URIs and a lure related to game hacks. While no scripts were extracted, the document's structure and embedded links suggest it is designed to redirect users to potentially harmful content or initiate downloads.

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/406889139/how-to-get-spins-on-coin-master-hack-game-hack PDF link annotation
    • http://laboratorium.sman2metro.sch.id//repository/hack-coin-master-for-iphone_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-apk-download-v1-144-2-free_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-links-that-don-t-expire_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-hack-apk-download-2021_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-minecraft-skins-ps4_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/prison-life-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/hack-roblox-electric-state_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-game-hacking_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/coin-master-free-spins-link-may-2021_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/roblox-lovenet_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id/repository/minecraft-client_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/hack-coin-master-app-ios_GM406889139.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/10-robux_GM431946152.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/minecraft-116-1-download_GM479516143.pdfIn PDF document text
    • http://laboratorium.sman2metro.sch.id//repository/huskybuscom-free-robux_GM431946152.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_off00002f00.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F00 22112 bytes
SHA-256: 8372fff0c50d8be46d0479d17aa166253cfc9b12c2332ba372f01c5647eff304
font_01_sfnt_off00005fdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FDD 18344 bytes
SHA-256: 4391b8fdd94c3e91ab7c8b66dd483ba7ee2647ef2a9573d78ffb2d7635701131

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