Malicious PDF — malware analysis report

Static analysis result for SHA-256 2248c8c6585a6a43…

MALICIOUS

PDF

45.4 KB Created: 2021-05-19 09:45:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 6ef62b5b0b925582a67f755c4127311d SHA-1: 6a24b0df8925b44b4119cd655c8b1e19ec6bf834 SHA-256: 2248c8c6585a6a4309ff17f7c5268b1fa32a7108afd50ad087cad27569eddc97
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, masquerading as "free generators" and "game hacks" to lure victims. The document body and embedded URLs suggest a phishing or scam attempt, likely to lead users to further malicious content or downloads. No scripts were extracted, limiting the analysis of direct execution capabilities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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 https://netcdn.xyz/app/835599320/tiktok-free-2021-views-game-hack In PDF document text
    • https://new-era.com.tw/image/data/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/impact-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-mobile-hack_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/fighting-free-card-coin-master_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-change-roblox-username-for-free_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/mcpe-free-download_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/worst-roblox-avatars_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-game-legitimate-hack-without-signing-up-or-shareing_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-spins-2021_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-hack-someones-roblox-account_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/archery-master-3d-coins-hack_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/do-you-get-windows-10-minecraft-for-free-with-java_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004da1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DA1 24236 bytes
SHA-256: 94b4922b2d1a60dfd71065ff4c68e600062edac35c0722c3db5937fcf79ecd52
font_01_sfnt_off00008547.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8547 2912 bytes
SHA-256: 02b35010e2614e3cc95ac6414c49295350c91fdfcc4b4cad27ffdbc10e80df7f
font_02_sfnt_off00008f44.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F44 18156 bytes
SHA-256: 5ef7e132eff81e495aabd30452a6d1ac7143b88a9563d04d344cafbdbd1bd9fa

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