Malicious PDF — malware analysis report

Static analysis result for SHA-256 83eb1128b291f087…

MALICIOUS

PDF

34.4 KB Created: 2021-07-05 10:31:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b10e143649104dc9053a17983a32cb37 SHA-1: 4144864d6ddf9b6bcaceb3a0ce6233e4cd8da47b SHA-256: 83eb1128b291f0879f708183801e7822fd6f9375094cbdcffb6bc0619c7b22af
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to game hacks and free currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts other malicious PDF files. The document's content and embedded links strongly suggest a phishing or scam campaign designed to lead users to further malicious content.

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-coins-hack-game-hack In PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-executor_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-murder-mystery-2-halloween-hack-candy_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/toolbox-for-mcpe_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-hacker-2021-exe-download_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/cheats-in-pet-rnch-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/free-spin-link-coin-master-today_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-free-reddit_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-como-tener-robux-gratis-2021-octubre-nuevo-hack_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-client_GM479516143.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/roblox-free-old-accounts_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/secret-roblox-hack-revealed-free-robux-generator_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/android-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-robux-for-free-on-pc-without-downloading_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/coin-master-free-spins-daily_GM406889139.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-get-the-catalog-free-in-roblox_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/how-to-hack-roblox-no-download-2021_GM431946152.pdfIn PDF document text
    • http://mtsn-baranti.com/perpus/repository/minecraft-hacks-pc_GM479516143.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_off000031a4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x31A4 22748 bytes
SHA-256: 67cbba430203f03e50824e9b8e96f4a79ef571007335e6852f81a46a1fc3f3a4
font_01_sfnt_off00006485.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6485 18004 bytes
SHA-256: 2f3a5855c5bac228d8d27cc7f61b57eebad79d58a924e470a0477843dff273c7

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