Malicious PDF — malware analysis report

Static analysis result for SHA-256 2543f6e6b6fde16b…

MALICIOUS

PDF

35.1 KB Created: 2021-06-28 23:38:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: f66744da4b44f2361d24ec6f5b0d7608 SHA-1: d6f36e4b7282cc071b9f8a48e72caf609d158f8f SHA-256: 2543f6e6b6fde16be6fd49ba190f111f11b582e50018e14f512e96ec06b5ad2c
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.co/app/431946152/my-roblox-place-hack-by-game-hack PDF link annotation
    • http://gts.edu.gh/library/repository/quelquun-hacker-mon-compte-roblox_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-e-free-command_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/my-account-keeps-getting-hacked-on-roblox-what-to-do_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/get-free-gold-cards-in-coin-master_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spins-usa-2021_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-free-spins-only_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/windows-10-minecraft-hacks_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-net-download-free_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/minecraft-toolbox-premium-apk_GM479516143.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-a-free-remote-raid-pass_GM1094591345.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/robux-and-tix-hack-generator_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/coin-master-hack-mod-apk-unlimited-spin-download_GM406889139.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/roblox-free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/free-roblox-gift-card-codes-2021-generator_GM431946152.pdfIn PDF document text
    • http://gts.edu.gh/library/repository/hacker-minecraft-song_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
font_00_sfnt_off000030d7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30D7 22832 bytes
SHA-256: 525550f3b2be74486648c11a4197370323f641d2e1b1cc0844d5bc820226bda3
font_01_sfnt_off000063e4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63E4 19184 bytes
SHA-256: 4e610f2d0cf05ce87ddf0cad26b6bd3695ab643a4e974771cd5bc798390cc438

Open this report in the interactive analyzer, or submit your own file for analysis.