Malicious PDF — malware analysis report

Static analysis result for SHA-256 0d6a8f212999260d…

MALICIOUS

PDF

35.3 KB Created: 2021-07-05 22:10:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: c3b48850c003949f98ea886332dc5217 SHA-1: 6f826ecbb52f014986c60dc80b47afb437ab9051 SHA-256: 0d6a8f212999260d52cd4846602abcb3222020eaa9ee354a796f2f28580bcd28
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that are explicitly flagged as lures for game hacks and generators. The document body and heuristics indicate a strong focus on directing users to external sites promising free in-game items, which is a common phishing and scam tactic. While no scripts were directly extracted, the PDF structure and embedded links suggest an attempt to exploit user interest in game cheats to redirect them to potentially malicious or scam-related content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9984

Heuristics 5

  • PDF links to a 'free generator / game hack' redirector high 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.
  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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/free-spin-link-coin-master-app-game-hack PDF link annotation
    • http://library.umla.ac.id//repository/robux-free-com_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-free-spins-youthnow_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-get-free-robux-hack-2021_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-roblox-dominus_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/hack-coin-master-app_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/hack-coin-master-dzooka_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-get-free-coins-and-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/get-robux-for-free-real_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-get-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/youtube-roblox-cheats-for-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/tiktok-free-steam-games_GM835599320.pdfIn PDF document text
    • http://library.umla.ac.id//repository/what-tiktok-free-movies_GM835599320.pdfIn PDF document text
    • http://library.umla.ac.id/repository/free-ways-to-get-robux_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
font_00_sfnt_off000032d6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x32D6 23224 bytes
SHA-256: ec6671271a11410d0a8c06f19b09ada593eba5a555999928c10fc0d079b92e64
font_01_sfnt_off00006732.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6732 18344 bytes
SHA-256: 5ba5712e1f8a72cd898b4b1d834b987228c2e482256828e1dac09ae5eef18b54

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