Malicious PDF — malware analysis report

Static analysis result for SHA-256 283c719c79122b67…

MALICIOUS

PDF

33.4 KB Created: 2021-07-09 07:29:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 9fcc3adf87cf075a549f47726e619d97 SHA-1: 3c688d078fb52e6a79e347784bb205a1e7280a72 SHA-256: 283c719c79122b67001652c612d69e9f264e9df45226224bfbead8a12b6f12c8
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a prominent link to 'haktuts-coin-master-spins-game-hack', identified as a game hack lure. This suggests the document's primary purpose is to redirect users to a potentially malicious site offering cheats or exploits. The ML classifier also strongly flagged this PDF as malicious, supporting the assessment of a malicious intent.

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/haktuts-coin-master-spins-game-hack PDF link annotation
    • https://tnupacktour.com.tw/image/data/files/free-100-robux-code_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/spin-link_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-robux-inspect-element-no-waiting-2021_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/coin-master-pro-hack_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/getrobux-ninja_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-robux-no-playing-games-or-human-verification_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/minecraft-hacker-mask_GM479516143.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-to-hack-in-roblox-fly-threw-walls_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/robux-hack-2021_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-free-robux_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/what-do-roblox-points-do_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/roblox-join-anyone-hack_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/free-game-pack-coin-master_GM406889139.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/get-free-robux-proof-2021_GM431946152.pdfIn PDF document text
    • https://tnupacktour.com.tw/image/data/files/how-to-get-free-roblox-gift-cards_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_off00003017.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3017 21608 bytes
SHA-256: f84ab94513727a363c9ebddf1ded12a3d34c6ecd81d0a428a19dea071824eca1
font_01_sfnt_off00005f78.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F78 18320 bytes
SHA-256: 4d6b5a7e8d71a8cfca2907d7514c709552786c5f23281e6f9e82b92694f55921

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