Malicious PDF — malware analysis report

Static analysis result for SHA-256 4ea512d4e97b6f51…

MALICIOUS

PDF

39.3 KB Created: 2021-06-03 10:01:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: bc9260ea0f2ce2739e4ea77fa63c0723 SHA-1: 54a4841a9a1c33c363c751094b2a6be62d6d0a1d SHA-256: 4ea512d4e97b6f5168ea78f4af5fd768aaa78310ee7c50a181aa0b0491ee9540
94 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. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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 https://netcdn.online/app/406889139/coinmaster-blogspot-game-hack PDF link annotation
    • http://183.91.70.11/repository/free-robux-only-username-no-human-verification_GM431946152.pdfPDF link annotation
    • http://183.91.70.11/repository/coin-master-game-android-free-download_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/free-realistic-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://183.91.70.11/repository/coin-master-hack-tool-2021_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/blogspot-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-verification_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/avatar-the-last-airbender-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/minecraft-free-demo_GM479516143.pdfIn PDF document text
    • http://183.91.70.11/repository/pokemon-go-hack-free-download-ios_GM1094591345.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-login-hack_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/how-to-get-free-roblox-premium_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/microsoft-store-robux_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/claim-roblox_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/free-spins-coin-master-no-human-verification_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/roblox-hack-codes_GM431946152.pdfIn PDF document text
    • http://183.91.70.11/repository/hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://183.91.70.11/repository/best-hack-for-coin-master-2021_GM406889139.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
stream_004_off00004d6e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D6E 24332 bytes
SHA-256: faabb0cbc8855892d8aa464d77947fc53af58a01e1abf3f88928619637ae84fb