Malicious PDF — malware analysis report

Static analysis result for SHA-256 1eb1f6c9a5429be4…

MALICIOUS

PDF

32.7 KB Created: 2021-06-29 15:42:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2206c46999fa6d3c4a1701f2abbe1e6a SHA-1: e07c9e3076a64c1756add22082275db848dec73d SHA-256: 1eb1f6c9a5429be4c0792878e70ace16eeebbc354ce05fdc216b314f764d278b
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to external websites, including a known malicious redirector at http://netcdn.co/app/431946152/roblox-hack-exploits-game-hack. The document body explicitly mentions 'Roblox Hack Exploits' and 'CLICK HERE TO ACCESS ROBUX GENERATOR', indicating a social engineering lure to drive traffic to potentially malicious content. The presence of embedded URLs and the ML classifier's high confidence score support this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/roblox-hack-exploits-game-hack In PDF document text
    • https://admin.9credit.vn/data/files/latest-free-spin-coin-master-daily_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/best-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/money-hack-roblox-adopt-me_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/minecraft-java-edition-free-download-for-android_GM479516143.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/roblox-lucky-block-battlegrounds-hack_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/free-h-robux-game_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/free-robux-generator-com-roblox-hack_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/roblox-bloxburg-house-builders-free_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/coin-master-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/coin-master-hack-that-actually-works_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/aimbot-hack-roblox-murder-mystery-2_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/como-hackear-roblox-en-meepcity_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/free-robux-earn-robux_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/minecraft-that-you-can-play-for-free_GM479516143.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/why-do-robux-hacks-ask-for-verification_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/minecraft-bedrock-free-download_GM479516143.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/hack-para-roblox-flood-escape-2_GM431946152.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • https://admin.9credit.vn/data/files/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 5

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002afc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AFC 21700 bytes
SHA-256: 5c5bef613372ae5ee3005903278742d451e93909f6f1bc7f25573adf2d67ea0f
font_01_sfnt_off00005ac5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5AC5 19056 bytes
SHA-256: 50811b000c699978ad05097a697d16c57f5493a5adaa64e5f76e98a2714ed06f

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