Malicious PDF — malware analysis report

Static analysis result for SHA-256 73297f2b5d58fbf5…

MALICIOUS

PDF

34.2 KB Created: 2021-07-04 10:36:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8942c20c7bfdaa7c5f1ee99900d8835f SHA-1: c79d3d2876ea8666bcc039f84c1bc7d0684448c4 SHA-256: 73297f2b5d58fbf51222c8b698574112def11c425efa4e26b2a0c9fec29756bf
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors and infrastructure, disguised as 'game hacks' and 'generators'. The document body and heuristics indicate a lure to trick users into clicking these links, which likely leads to a phishing page or a download of a second-stage payload. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/431946152/how-to-hack-into-old-roblox-accounts-game-hack In PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-hack-355_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/get-robux-now_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-free-spins-android_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-dominus-roblox_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/minecraft-pe-hacks-ios_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/coin-master-download_GM406889139.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/archery-master-3d-apk-and-mod-free-download-unlimited-coins_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-gift-card-20210-robux-codes-2021-aug_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-free-spins-iphone_GM406889139.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-robux-com-no-verification_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/roblox-red-shirt-free_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/coin-master-free-spins-hack-no-human-verification_GM406889139.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/how-to-get-red-valk-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/how-to-get-free-vip-in-fashion-famous-roblox_GM431946152.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/free-clothing-on-roblox_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • https://new-era.com.tw/image/data/files/synapse-roblox-free-download_GM431946152.pdfIn PDF document text
    • http://new-era.com.tw/image/data/files/52-000-000-robux-free_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_off00002e88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E88 22460 bytes
SHA-256: d33f270b5891800313c84870c48beb640c23cdf2af6150865bcefc904e10a70b
font_01_sfnt_off00006081.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6081 19052 bytes
SHA-256: 0a79f763e5e2600359596b67769f1ad1d04a95305b99bb0c11994c7e523cb847

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