Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ec7f8fd5b19546a…

MALICIOUS

PDF

43.6 KB Created: 2021-05-12 21:06:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a569c43d0ff31148c8cbdff82cb635ce SHA-1: 48ea91c262646e304fa75cfd010568b44503771c SHA-256: 4ec7f8fd5b19546a0507a90ae543a438456f80fed2b490496fea6888d854bf02
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 0.9969

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/free-robux-no-human-verification-2021-game-hack PDF link annotation
    • http://ivalor.fr/images/www-roblox-com-free-robux_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/hack-coin-master-for-android_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-free-spins-and-coins-blogspot_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-free-spins-hack-2021_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-mod_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/how-to-get-roblox-credit-for-free_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-hack-co_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/hack-my-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://ivalor.fr/images/robux-codes_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/20-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/roblox-demon_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
stream_003_off00004a3c.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A3C 25736 bytes
SHA-256: 140cd9a19da861d03393a8eceeba7e2bccb9b194bcfc56c27d03629179bb7e6e
font_01_sfnt_off0000853c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x853C 19260 bytes
SHA-256: 6a9b2633b50d097f4b127a07737bc979a0fc1726e0f4efc9f53c1be2676c3116

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