Malicious PDF — malware analysis report

Static analysis result for SHA-256 1f265cb0281c0bbe…

MALICIOUS

PDF

44.3 KB Created: 2021-05-14 11:38:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: e25cd2913eada9c81498da6119b6b0f2 SHA-1: 58f3047953049fcdd312ba2f39c03c9ef6f32b41 SHA-256: 1f265cb0281c0bbe7b4b364c5668343526a78934995806eaf8c99fc0597fc45f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically advertising free game hacks and generators. The ML classifier also flagged this PDF as malicious. While no scripts were explicitly extracted, the presence of malicious redirector links and the lure content suggests an attempt to lead the user to a compromised site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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/479516143/free-24-7-minecraft-server-game-hack In PDF document text
    • http://new-era.com.tw/image/data/files/how-you-get-robux_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/is-roblox-studio-free_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-roblox-accounts-with-robux-that-work-2021_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-custom-minecraft-skins_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/minecraft-pe-hacks-2021_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-minecraft-java-edition_GM479516143.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/how-do-you-earn-robux-on-roblox_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/blogspot-free-spins-coin-master_GM406889139.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/how-to-get-free-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-apk-mod-hack-download_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/roblox-redeem-card-codes-free_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/robux-hack_GM431946152.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
font_00_sfnt_off00004a02.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4A02 24192 bytes
SHA-256: 101151917c183b80ba66b09661db85eaea89301a959b56feab10d30e54160af5
font_01_sfnt_off000080fe.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80FE 3104 bytes
SHA-256: ca34f7b905d91adda4b6796f1d933ed03285a7b2bd9162ebe806dbe5dbbc6df2
font_02_sfnt_off00008ba4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8BA4 17924 bytes
SHA-256: 6d441e79e96f2496e7d363a8fd4eac2c27151cb1acb88a4e303d16644f1cdf17

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