Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5d093013c1d570b…

MALICIOUS

PDF

46.2 KB Created: 2021-06-11 13:33:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: 772dbb8c4a40b2194248a630ede163dd SHA-1: 1f293f0c8160ba66f33bfd64c059c68431fb54ad SHA-256: c5d093013c1d570b44a3ea854807e3309630d1a4c8b0c99a74473eb9064f200f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document uses a lure related to game hacks to trick users into clicking a link. The link redirects to a malicious website, likely to download further malware or conduct phishing. No scripts were extracted, but the PDF structure and embedded URI strongly indicate a malicious intent to redirect the user to a compromised site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

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/hacks-roblox-muder-mistery-2-game-hack PDF link annotation
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/level-7-lua-executor-free-hack-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/can-you-get-roblox-on-xbox-one-for-free_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/roblox-fashion-famous-download-free_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/roblox-wall-hacks-2021-script_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/free-download-game-roblox-full-version_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/comment-hacker-un-compte-roblox-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/hack-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/roblox-royale-high-cheats-for-diamonds-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/free-aimbot-for-any-game-and-no-virus-roblox_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/free-likes-on-tiktok_GM835599320.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/how-to-get-free-accessories-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/free-robux-gift-card_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/how-to-get-free-tiktok-followers-without-downloading-apps_GM835599320.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/how-to-get-free-300-robux-2021_GM431946152.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://e-learning.man2jombang.sch.id/__statics/gudangsoal/files/clover-online-hack-roblox_GM431946152.pdfIn PDF document text
    • https://collectrobuxIn 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
stream_004_off000054e7.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x54E7 25256 bytes
SHA-256: bb8cd4b04b576687f903bb96dc8689ea3fe2f28b0efa503e1a9fcee212c67378
font_01_sfnt_off00008f40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F40 19220 bytes
SHA-256: 1fdbe7ef29d12d232371ca4902f638582cf810d21f843916a1c122ead280922b

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