Malicious PDF — malware analysis report

Static analysis result for SHA-256 4be49fe5e955282a…

MALICIOUS

PDF

28.8 KB Created: 2021-07-05 05:58:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 34cea84ba5b69a38af008417512f78d3 SHA-1: a97872a25755e69acb97a83333abf131b3e8bf68 SHA-256: 4be49fe5e955282ab4a451f30cd4c47fff34e0c3cb40d652607c1b04063c7ee7
94 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of free game currency and hacks to entice users into clicking malicious links. The document contains multiple embedded URLs, including one pointing to an IP address, that lead to sites offering generators or downloads related to popular games. The ML classifier strongly indicates malicious intent, and the heuristic firings confirm the use of game hack lures and external URIs.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9988

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.
  • Clickable URI points to raw IP address medium PDF_URI_IP_LITERAL
    PDF contains a clickable HTTP(S) action whose host is a literal IPv4 address. Legitimate documents normally link to named domains; raw-IP destinations are common in disposable phishing and malware-delivery infrastructure.
  • 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/431946152/funbloxxyz-free-robux-game-hack PDF link annotation
    • http://110.232.83.89/slimsppks/repository/blogspot-free-spins-coin-master_GM406889139.pdfPDF link annotation
    • http://110.232.83.89/slimsppks/repository/free-robux-earn-now_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/free-minecraft-client_GM479516143.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/how-to-get-free-spins-on-coin-master-without-verification_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/minecraft-free-online_GM479516143.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/como-hacer-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/coin-master-hack-spins-apk-download_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/free-roblox-hack-us_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/free-roblox-username_GM431946152.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/pokemon-go-free-gifts_GM1094591345.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/pubg-uc-vpn-apk_GM1330123889.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/coin-master-free-spins-fb_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/free-spins-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://110.232.83.89/slimsppks/repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002aae.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2AAE 23144 bytes
SHA-256: 7f690a0f6a7daa2e1c0705b9565b8b1b011a8f1f9572f9aadef472f4bbd3143b

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