Malicious PDF — malware analysis report

Static analysis result for SHA-256 12e0d2e2160e8b55…

MALICIOUS

PDF

44.5 KB Created: 2021-06-07 01:14:41 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: ee511e8191fc98367c643ee604199e84 SHA-1: 9bfcfdc2121cc4b306bf83106f44115543310710 SHA-256: 12e0d2e2160e8b556b5912bb4e2a0aa25eeeb4bbaea1d4cd0ee178532b75d598
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, masquerading as game hacks and free generators. The primary link directs to 'https://netcdn.tw/app/431946152/hack-roblox-accounts-free-2021-game-hack', which is flagged as malicious infrastructure. The document body and heuristic firings confirm the intent to lure users to these malicious sites, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/hack-roblox-accounts-free-2021-game-hack In PDF document text
    • http://nalmpantistractors.gr/images/coin-master-online-hack-2021_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/daily-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/roblox-arsenal-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-minecraft-java-edition-account_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/minecraft-server-hacks_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-spin-in-coin-master_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-robux-giver-real_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/minecraft-java-free_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/coin-master-apk-hack_GM406889139.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-robux-kid-friendly_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/how-to-get-free-roebucks-in-roblox_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-robux-codes-no-verification_GM431946152.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/free-minecraft-server-hosting-24-7_GM479516143.pdfIn PDF document text
    • http://nalmpantistractors.gr/images/how-to-buy-robux-for-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
stream_004_off00005211.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5211 24260 bytes
SHA-256: bf5a3028277bf3a574ffed23a6adf3fb4229832366fc9240deee7caa8eebd4ec
font_01_sfnt_off00008917.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8917 18992 bytes
SHA-256: 0fec7dc8fff718e449f2fcb893253baa41f95ce88f32e62a06dde776be6ac0b7

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