Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec0958d8e6dc2787…

MALICIOUS

PDF

34.1 KB Created: 2021-07-04 08:13:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: f1fb69a89907696153ca5183d4ff7287 SHA-1: c3b1cd50d587bc2553db91cbcc16a49163828125 SHA-256: ec0958d8e6dc27877c30b54ca1f680d982ac9e7100b5b48437f524f9ce8c94c0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded URLs that redirect to websites offering game hacks and cheats, a common lure for malicious content. The primary URL, http://netcdn.tw/app/479516143/minecraft-free-online-games-game-hack, is directly linked to a 'free generator / game hack' lure. The document's structure and content strongly suggest it is designed to trick users into visiting these malicious sites, likely to download further malware or engage in phishing. No scripts were extracted, but the PDF's malicious nature is evident from its embedded links and heuristic analysis.

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/479516143/minecraft-free-online-games-game-hack PDF link annotation
    • http://katalog.ireyogya.org/repository/coin-master-hack-apk-no-fb-login_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/lucky-patcher-roblox-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-redeem-code-for-coin-master_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-blogspot_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-exploits-2021-free_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/minecraft-mobile-free_GM479516143.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-robux-no-download-on-ipad_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-arcane-adventures-hack-download_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-crystal-redeem-code-star-wars-in-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-download-free-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-robux-for-free-2021-pc_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/unknown-cheats-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-anti-hack-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/coin-free-spin_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/free-rs-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/caesar-emergency-department-hack-roblox_GM431946152.pdfIn PDF document text
    • http://katalog.ireyogya.org/repository/roblox-hack-robux-2021_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_off000030e0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30E0 22512 bytes
SHA-256: 2b2c8becc3c6ccb8815f07d16272e40e8d6b973248c75c4229f288ef839b7fd2
font_01_sfnt_off00006316.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6316 18192 bytes
SHA-256: dd259a8a226edfb7beeeab1f7d1930cd74b5ac39a7352f8f4b1a77a7129da92e

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