Malicious PDF — malware analysis report

Static analysis result for SHA-256 3e2182271815ffe7…

MALICIOUS

PDF

50.7 KB Created: 2021-06-10 17:18:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 0c347cffe97fa891ef2583c73c14017b SHA-1: f2c51d97b2115e7620ee8c1057bd130e544b3595 SHA-256: 3e2182271815ffe7ee492f8cbcd177311bdd113b3c87e9f80dd8f18774686923
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites that advertise "free generators" and "hacks" for popular games, a common lure for malware distribution. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the embedded links suggest a phishing or social engineering attack aimed at tricking users into downloading further malicious content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9681

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 https://netcdn.tw/app/431946152/logos-for-free-roblox-game-hack PDF link annotation
    • http://io24.com.ar/images/free-roblox-accounts-2021-with-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-generator-tool-download-link_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-place_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/legit-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-get-free-robux-youtube-video_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/robux-boost_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-bad-buisness-hack_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/robux-fun-hack_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-send-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/free-robux-com_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-counter-strike-hacks_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-free-coins-and-spins-link_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/robux-pastebin-hack-no-waiting_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/roblox-girl_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/coin-master-hack-spins-free_GM406889139.pdfIn PDF document text
    • http://io24.com.ar/images/how-to-hack-coin-master-using-es-filer_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004eaf.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4EAF 26020 bytes
SHA-256: 9b4c241e1799975a801c8e7091917c0faf8311cfcbf95e3cab6a9db6f4d768b1
font_01_sfnt_off000089f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x89F8 3656 bytes
SHA-256: 63a179d8a9645bea05c6d53b1776faf4e4a7281930de6cf484e639846bec2e20
font_02_sfnt_off000096ad.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x96AD 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_03_sfnt_off0000a355.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xA355 18236 bytes
SHA-256: a821489d70d994e9462950bad69986fdfe6d5b770aa14aab9ebc4e4cca79f0d3

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