Malicious PDF — malware analysis report

Static analysis result for SHA-256 c6d2e9d8dbd92917…

MALICIOUS

PDF

34.8 KB Created: 2021-07-03 14:41:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1a9c10e195bc9613918113649b953ed8 SHA-1: 481bd5640b144ce1765f1b45ce2a9de87ae8b453 SHA-256: c6d2e9d8dbd929178bd23d6bf9e47aded7568e41c3a0b00b9a1b1836612ad03d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/431946152/free-robux-not-a-scam-game-hack. The document body and heuristics indicate a lure for free Robux or game hacks, suggesting the intent is to redirect users to potentially malicious sites or download further malware. No scripts were extracted, but the overall pattern is consistent with a phishing or malware distribution attempt.

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/free-robux-not-a-scam-game-hack In PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/free-roblox-survival-games_GM431946152.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/free-robux-please_GM431946152.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-apk_GM406889139.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/levvvel-coin-master_GM406889139.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/roblox-adidas-pants-free_GM431946152.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/roblox-tower-battles-cheat-engine_GM431946152.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/hack-scripts-for-roblox-free_GM431946152.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/how-to-use-speed-hack-in-roblox_GM431946152.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/coinmaster-gps-user-review-coinmaster-coin-master-hack-pagedemo-index_GM406889139.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/how-to-get-badges-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-hacks-free-spins_GM406889139.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/free-spins_GM406889139.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/roblox36com-free-robux_GM431946152.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/does-coin-master-hack-work_GM406889139.pdfIn PDF document text
    • http://kpu-badungkab.go.id/new/public/ckfinder/userfiles/files/mcpe-download_GM479516143.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_off00002fd0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD0 23084 bytes
SHA-256: fadf34a0e94b5353d84a74323056ef8757991a19cfd2bfdda767ad3cbae35c64
font_01_sfnt_off0000630c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x630C 19080 bytes
SHA-256: 14e01471e6a07db1a68c511ee00ed8ed146bd69de2dd1952b6465b95f794ce32

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