Malicious PDF — malware analysis report

Static analysis result for SHA-256 958c8fd2b167eb18…

MALICIOUS

PDF

41.7 KB Created: 2021-05-13 10:01:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 5eee75d4a4147b8d9316a113b0ff6731 SHA-1: fc6f39d0ed320912352745c1aedf3fad2a9929e6 SHA-256: 958c8fd2b167eb180853083364302574c0b63c256a99f63725685a8bf706805f
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 0.9971

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.xyz/app/431946152/how-do-you-get-free-roblox-game-hack PDF link annotation
    • http://christiansymbolkits.com/images/coin-master-free-spins-2021-hack_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/free-coin-master-links_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
    • http://christiansymbolkits.com/images/mcpe-master-unlimited-coins-hack-apk_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/daily-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/free-robux-sites-2021_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • http://christiansymbolkits.com/images/free-printable-roblox-images_GM431946152.pdfIn PDF document text
    • http://christiansymbolkits.com/images/links-to-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/coin-master-15-free-spin-link-of-last-5-days_GM406889139.pdfIn PDF document text
    • http://christiansymbolkits.com/images/coin-master-deals_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_off00004830.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4830 24212 bytes
SHA-256: 3b46bcb9a069013324ae6c3e29fd425bb31c6f022b7db5f718c8c1def3c5503d
font_01_sfnt_off00007f5f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7F5F 18688 bytes
SHA-256: 094a4600e44b5c04215cd8ac870b75cf15a4da61eb1de076039b07fe4aec062b

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