Malicious PDF — malware analysis report

Static analysis result for SHA-256 5ca2adf207fb1b0e…

MALICIOUS

PDF

34.9 KB Created: 2021-07-06 05:14:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: e53c33f8488a793abcfe6ccc9f543ba5 SHA-1: a7ca559d223cb82c5264493299e191b57e14c7f0 SHA-256: 5ca2adf207fb1b0eb97a5e45e464a744c1f4169a2979099d9327cd083ac5474c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and generators, directing users to the malicious URL http://netcdn.tw/app/431946152/inappropriate-roblox-games-game-hack. This URL likely serves as a redirector to a malicious payload or phishing page. The ML classifier also strongly indicated maliciousness.

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/inappropriate-roblox-games-game-hack PDF link annotation
    • https://digilib.stikesindramayu.ac.id/repository/roblox-hack-download-url-is-gd-robloxsrvr_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-afk-cheat-download_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/testing-free-email-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-alt-accounts-free_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/freespinandcoin_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/roblox-free-items-generator-hack_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/haktuts-coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/freespincoin-masterlinkdownload_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/rs-free-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-roblox-game-2021-may_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/claim-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/legit-coin-master-hack-october-2021_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-haktuts_GM406889139.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stikesindramayu.ac.id/repository/coin-master-hack-version-download-2021_GM406889139.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_off00002f76.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F76 22804 bytes
SHA-256: 0ce87a4eaf48db776dfd5ea8297f92ea4f6ef62f0293a2272ede48939273e704
font_01_sfnt_off000062f0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x62F0 19144 bytes
SHA-256: 79a6a5a9ae6257ea638799cb32a861e3301f0777c40791eec12f5a449b6bff8a

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