Malicious PDF — malware analysis report

Static analysis result for SHA-256 06ab08e6140bad86…

MALICIOUS

PDF

34.7 KB Created: 2021-07-04 15:56:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 1ae13d99b11faf1aaff7aa76366c4368 SHA-1: 310d9fefeccb85c231e30d518472818896d90c01 SHA-256: 06ab08e6140bad867a16df207077ba8a90fcde16fe1db8f84904fe5409daeae3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and game hack lures, indicating a phishing or scam attempt. The embedded URLs are designed to trick users into visiting potentially harmful websites, likely for credential harvesting or malware distribution. No scripts were extracted, but the document structure and embedded links strongly suggest a 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/406889139/coin-master-cheats-2021-game-hack In PDF document text
    • https://mbbs.hr/files/how-to-get-free-robux-app_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/how-to-get-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/item20212021-free-roblox_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-robux-rbx_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/free-robux-generator-for-roblox-2021_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://mbbs.hr/files/hacks-for-treasure-quest-on-roblox_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/free-roblox-svg_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/how-to-get-minecoins-in-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://mbbs.hr/files/roblox-free-play-no-download_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/how-to-get-free-clothing-roblox-2021_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/hack-the-coin-master_GM406889139.pdfIn PDF document text
    • https://mbbs.hr/files/minecraft-free-school_GM479516143.pdfIn PDF document text
    • http://mbbs.hr/files/how-to-hack-roblox-accounts-in-game-with-rc7_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/is-roblox-a-free-game_GM431946152.pdfIn PDF document text
    • http://mbbs.hr/files/is-roblox-free-on-pc_GM431946152.pdfIn PDF document text
    • https://mbbs.hr/files/coin-master-hacks-that-work_GM406889139.pdfIn PDF document text
    • http://mbbs.hr/files/roblox-its-free-trailer_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_002_off00003104.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3104 22900 bytes
SHA-256: 92dc4ee4d58e433347d3f309597eb2f523a47baf91acac11f9397467d7a9f4fb
font_01_sfnt_off0000647b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x647B 18404 bytes
SHA-256: b84a6eff53f49c27ef2dd0e07956638ce86fcdd1a1510f2c693010b455af6b5b