Malicious PDF — malware analysis report

Static analysis result for SHA-256 04204c80faa53396…

MALICIOUS

PDF

35.1 KB Created: 2021-07-06 06:38:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-12
MD5: 157139192fd9321c9a5d8da636576e7a SHA-1: c8c53df10d8f6568b487f5ea4100b7a62e5db1a7 SHA-256: 04204c80faa53396cb1dabeb9294b8a3c64a8149c1c00c1347d84f683eb61c06
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links designed to lure users into clicking on what appears to be a game hack generator. The primary link redirects to malicious infrastructure known for distributing unwanted content. The document's structure and embedded URLs suggest a phishing or scam attempt, likely intended to lead users to potentially harmful websites or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/free-coin-master-link-2021-game-hack In PDF document text
    • http://gts.edu.gh/library/repository/how-to-hack-roblox-without-verification_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/open-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/can-you-go-to-jail-for-downloading-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-scamer_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-change-your-name-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/como-tener-mas-seguidores-en-roblox-sin-hacks_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-assassin-cheats-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-cash-codes-for-roblox-miner-haven_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-shirt-template-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/games-like-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/promo-code-roblox-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/fre-de-fasility-en-roblox-manucrafting_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-long-can-you-get-banned-for-hacking-in-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/tiktok-free-view-followers-app_GM835599320.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-2021-spin-link_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-vip-server-for-roblox-dragon-rage_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/youtube-the-coolunique-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
stream_002_off000031b5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31B5 23064 bytes
SHA-256: f7dd13c8c5d3590f8c35392300ddb5ff96256fbdc6329ac383f96f04c3bb6e44
font_01_sfnt_off000065c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x65C3 18568 bytes
SHA-256: e88b6940b40ea5040f81da917e0c9c8aa36dd3f4bad0e71faf6aa4f6d6035265