Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2a82fdc00f9e5de…

MALICIOUS

PDF

32.8 KB Created: 2021-07-19 14:01:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: 41deac8f62b6a9056b6d787b5fd2506f SHA-1: ed0c872c3754bdeddce863f22dd79b92ad167f20 SHA-256: c2a82fdc00f9e5de9d3ebba37faf4eb2bd94da1c9f352ac9c1fa6a36fefe8fbd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and infrastructure, masquerading as game hacks and free generators. The document body explicitly mentions 'Minecraft Apk Free Download' and includes a 'CLICK HERE TO ACCESS MINECRAFT GENERATOR' call to action, reinforcing the lure. The presence of embedded URLs and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9900

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/479516143/minecraft-apk-free-download-game-hack In PDF document text
    • https://mixdoors.ru:443/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • https://mixdoors.ru:443/images/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://mixdoors.ru:443/images/codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://mixdoors.ru:443/images/how-to-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://mixdoors.ru:443/images/i-got-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • https://mixdoors.ru:443/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • https://mixdoors.ru:443/images/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://mixdoors.ru:443/images/minecraft-free-download-ios_GM479516143.pdfIn PDF document text
    • https://mixdoors.ru:443/images/get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • https://mixdoors.ru:443/images/robux-com-free-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_off00002c2c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C2C 22196 bytes
SHA-256: f72954668578d6fb3f7d80c199b7e1c22eaf184000506310b49cc71ccaccffcc
font_01_sfnt_off00005d46.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D46 18636 bytes
SHA-256: 460052af6c2621f53863fdd0e184641c8149664fef9b3bc68df6f3fcb4cff320