Malicious PDF — malware analysis report

Static analysis result for SHA-256 df5e5fea82527a34…

MALICIOUS

PDF

46.0 KB Created: 2021-05-12 05:33:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9e3716edef15a77efe8f1bf299b76a0f SHA-1: 9e8908462828beec9abe1f064a64ba393b874dd3 SHA-256: df5e5fea82527a340535835b5010dededbef9b29173f52eab0b9fe88616010b9
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, one of which, 'https://netcdn.xyz/app/431946152/robux-game-hack', is identified as a malicious redirector. The document body and embedded artifacts suggest a lure for game-related cheats or generators, likely intended to lead users to a malicious site or download. No scripts were extracted, but the presence of malicious links and the ML classifier's high confidence score indicate a high likelihood of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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/431946152/robux-game-hack In PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/free-online-games-like-minecraft_GM479516143.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/how-to-get-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/coin-master-hack-spin-generator_GM406889139.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/hack-coin-master-no-verification_GM406889139.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/oprewards-points-generator_GM431946152.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/haktuts-coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/coin-master-hack-apk-online_GM406889139.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/free-robux-com_GM431946152.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/free-robux-script_GM431946152.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/minecraft-bedrock-hacks_GM479516143.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/www-coin-master_GM406889139.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/roblox-free-rubox_GM431946152.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/robux-withdraw_GM431946152.pdfIn PDF document text
    • https://www.moledigital.co.uk/uploads/files/files/coin-master-hack-mod_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off000044b0.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x44B0 28160 bytes
SHA-256: 34fc6d641ac71f4e0971c2e0946b2fda8d825ffa8060cb58386d1d7b8e9f6a6b
font_01_sfnt_off000085f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85F8 5596 bytes
SHA-256: 9a13c2580265a78e8a7257496a31ee0055738af7e20a5661c2902efe4bf05ce5
font_02_sfnt_off0000929f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x929F 17852 bytes
SHA-256: ccf20ca1ad80d0cd2f0d464461636129858ae353cf2c3769b35ef20048afdef0

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