Malicious PDF — malware analysis report

Static analysis result for SHA-256 407d506665253e4a…

MALICIOUS

PDF

33.0 KB Created: 2021-07-05 08:57:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fcb72b1ac7b849c5a2ea4a486e4b2312 SHA-1: ed9d5d735707bef11a4208183090c7d095de3ff7 SHA-256: 407d506665253e4a6a24bef8f95ea03da778361c8252189a7af362207618123b
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links to external websites that promise free game hacks and generators, a common lure for malware distribution. The ML classifier also flagged this PDF as malicious with high confidence. The document body and heuristics indicate a redirection to a URL that likely serves as a download point for a second-stage payload.

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/479516143/classic-minecraft-net-hacks-game-hack PDF link annotation
    • http://gts.edu.gh/library/repository/roblox-teasurenhunt-simulator-hack_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-ohne-handynummer-und-menschliche-ver_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hack-coin-master-using-cheat-engine_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-synapse-exploit-download-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-do-i-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-promo-codes-2021-not-expired_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/pokemon-go-free-walk_GM1094591345.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/easy-way-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-hack-2021-android_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/great-robux-hack_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-codes-unused_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spins-link-today-facebook_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/bug-me-not-hacking-in-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/master-coin-hack-app_GM406889139.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_off00002eaf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EAF 21840 bytes
SHA-256: dbd012fb01e600a936ee0575e5f732e47ec35f6a31b94a80f10b5b7bff1f6258
font_01_sfnt_off00005ee0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE0 18100 bytes
SHA-256: e5e43c4f2a76601b68ea8201b0c37883eedd9e77f9c7f84ae37ad33981ff38f3

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