Malicious PDF — malware analysis report

Static analysis result for SHA-256 74ba1065154f7e2e…

MALICIOUS

PDF

36.8 KB Created: 2021-05-11 22:48:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 4fdd944374f8c8ee9c97e75e0bc386f4 SHA-1: d8e7412da099395b3c74e94c1fcb17bcc78f665e SHA-256: 74ba1065154f7e2e5c7ed38ef397279d6f6c5ece3c4e7e8d4196645f6e3d1d7a
74 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

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 0.9991

Heuristics 3

  • 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.
  • 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/can-you-get-minecraft-for-free-on-pc-game-hack PDF link annotation
    • http://lib.unar.ac.id/repository/free-robux-promo-codes_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/blogspot-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-hack-programmers_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/free-robux-no-verification-2021-android_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-download_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-hack-without-verification-for-iphone_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/is-java-minecraft-free_GM479516143.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/pro-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/op-rewards-robux_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/roblox-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id//repository/can-you-really-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/coin-master-free-gold-cards_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/hack-card-collection-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/roblox-old-avatar_GM431946152.pdfIn PDF document text
    • http://lib.unar.ac.id/repository/free-spin-link-coin-master-today_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
stream_003_off00004af5.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AF5 24320 bytes
SHA-256: 5a48f1094b94433c5dbf41743d1270730de04ea8bee54f166e71bc75a2e86737
font_01_sfnt_off00008224.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8224 3292 bytes
SHA-256: 2611cb65aeeee3227597fa96ffaa9c45bf20ff2aec21b3947a513b74a88f9150

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