Malicious PDF — malware analysis report

Static analysis result for SHA-256 d745c9545ade9561…

MALICIOUS

PDF

35.6 KB Created: 2021-07-07 18:58:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f9c9d5485863b63e7664877a22486285 SHA-1: 26befd883bf9bfc65450d0f104841ff88905a88d SHA-256: d745c9545ade956105318a796bf9c6990caf6027cb97d1d5faa58ef750ee943e
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a prominent link disguised as 'Cheat Codes For Coin Master' which redirects to a malicious URL. This lure, combined with the ML classifier flagging the PDF as malicious, strongly suggests a phishing or social engineering attack aimed at tricking users into visiting a potentially harmful site. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.
  • 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/cheat-codes-for-coin-master-game-hack PDF link annotation
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/free-roblox-boy-hair_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/roblox-avatar-com_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/tiktok-viewer-free_GM835599320.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link_GM406889139.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/get-roebucks-com_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/games-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/coin-master-free-coins-link-2021-today_GM406889139.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/free-robux-hack-2021-lenovo_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/furky-roblox-hacks-blocburg_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/picture-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/free-roblox-exploits_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/hack-robux-gratis-pastebin_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/robux-free-c_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/free-roblox-bots-site-v3rmillionnet_GM431946152.pdfIn PDF document text
    • https://elearning.mtspersissindang.sch.id/__statics/gudangsoal/files/coin-master-hack-twitter_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000345c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x345C 23092 bytes
SHA-256: a5084229d89a592356a9ad3bbbc66b0b740a4a0a7c03cc17b186a44c0d89a1fa
font_01_sfnt_off00006866.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6866 18336 bytes
SHA-256: 46a5dce1bcd15fef46771321b75302700fdbe642ab852c79c7094750b70fcfec

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