Malicious PDF — malware analysis report

Static analysis result for SHA-256 a637c67e0306e45b…

MALICIOUS

PDF

46.6 KB Created: 2021-06-10 17:33:38 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: a1eb332126aa0f9509f0ff6d033487c1 SHA-1: 64a4d37f837d94ad5f8847bc67f25e6682bef110 SHA-256: a637c67e0306e45ba7a4d315a6d95a19cb6096149685cc00b9d3b1eb816cb161
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document employs a lure related to game hacks and generators, directing users to external URLs. The primary URL, https://netcdn.tw/app/431946152/moon-tycoon-side-roblox-hacks-game-hack, is associated with a high-severity heuristic for game hack redirects. Numerous other URLs pointing to similar content were also extracted, suggesting a campaign focused on enticing users to click malicious links. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

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 https://netcdn.tw/app/431946152/moon-tycoon-side-roblox-hacks-game-hack PDF link annotation
    • http://stitqi.ac.id/website//repository/free-robux-app_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/krnl-download_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/free-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-coin-master-stuff_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-can-you-get-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/roblox-lawsuit_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-free-spins-through-coin-pop_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/how-to-get-free-coins-on-flip-master_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/earn-free-robux_GM431946152.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-32-hack-apk-download_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/coin-master-rewards-app_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/tiktok-free-fans-2021_GM835599320.pdfIn PDF document text
    • http://stitqi.ac.id/website/repository/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/coin-master-hack-version-download-2021-android_GM406889139.pdfIn PDF document text
    • http://stitqi.ac.id/website//repository/free-spins-coin-master-2021-glitch_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_off00005391.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5391 27612 bytes
SHA-256: 208f185a4f3916f8439e2fbd2abd6b43fc7068a3b795f83d96428d5f54af08a2
font_01_sfnt_off000091f3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x91F3 18852 bytes
SHA-256: 535f992ef496613a3237ee8fd9956c1421d8a52b15af639497a63e6dfce90116

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