Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e57865f6e53029…

MALICIOUS

PDF

49.5 KB Created: 2021-06-03 05:22:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 3328c8049d9c921622e893ecb3e5af3b SHA-1: c9d3dfbf238b8aa734247e58b28e7c043c612fab SHA-256: d1e57865f6e5302998c5ce78630096c26971bb6453032a1a1e2836acabcb5f40
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and lures related to game hacks, indicating a phishing or scam attempt. The primary malicious link identified is https://netcdn.online/app/431946152/how-to-hack-the-powerplant-inside-roblox-game-hack. While no scripts were explicitly extracted, the PDF structure and heuristic firings strongly suggest it's designed to lead the user to a malicious site, likely for credential harvesting or malware distribution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/how-to-hack-the-powerplant-inside-roblox-game-hack In PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-400-spin-link-today_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/pubg-uc-20_GM1330123889.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-coins-on-coin-master-generator_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-hack-apk_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-pet-food-links_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/robux-com-free_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-o-get-free-coin-master-spins_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/master-coins-free_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-2021-robux_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-pe_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-roblox-characters_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/rewards-roblox-com_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-hack-apk-android-1_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/minecraft-wurst-hacked-client_GM479516143.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_004_off00005302.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5302 27712 bytes
SHA-256: 4859549e4e26d545aaa119dc7d10ab3d2d2e8fd5a17277bae48deb59aec427be
font_01_sfnt_off0000923b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x923B 2824 bytes
SHA-256: bd082aa73fbb1a8b3bd2e5c998d3d8e31d1dfc71ea36f846af746f69a0d2ab7f
font_02_sfnt_off00009bef.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x9BEF 19240 bytes
SHA-256: fffe0cba0d6db486c110324166d1ed63848ca6fb68ad6c3a7ee7e21451eb21cf

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