Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7c4c8ec5413abab…

MALICIOUS

PDF

35.4 KB Created: 2021-05-20 12:47:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fb17c95db3996ba38ca58c86a969f842 SHA-1: 6ab93ce9d55bcb47886180234bae3bb5a4818433 SHA-256: e7c4c8ec5413ababaea60dec2a2a83942a10faaf8e5860d001bdc284898463eb
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that masquerade as game hacks and generators, redirecting to malicious domains. The ML classifier also flagged this PDF as malicious. The primary attack vector appears to be luring users to click on these links, likely to download further malware or engage in phishing activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

Heuristics 5

  • 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.
  • 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/479516143/minecraft-net-free-game-hack PDF link annotation
    • http://111.68.26.74/widyapustaka/repository/como-hackear-coin-master-2021_GM406889139.pdfPDF link annotation
    • http://111.68.26.74/widyapustaka/repository/roblox-games-com-free_GM431946152.pdfIn PDF document text
    • http://111.68.26.74/widyapustaka/repository/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://111.68.26.74/widyapustaka/repository/coin-master-daily-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://111.68.26.74/widyapustaka/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • https://playhack.in/minecraftIn PDF document text
    • https://discord.ggIn 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_002_off000032ec.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32EC 24872 bytes
SHA-256: 301b76b4e2591b899fd0a74d5eb8178e5c79dcfa41226f8f66ece1679a24244c
font_01_sfnt_off00006b59.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6B59 17568 bytes
SHA-256: faeb95cc6d96c3cea1ae90d4178fb3ee4a8ce77703e61043965722cb1ebd81f6

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