Malicious PDF — malware analysis report

Static analysis result for SHA-256 4cc3400361fce807…

MALICIOUS

PDF

46.3 KB Created: 2021-06-11 06:20:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 225a3ede20f37d72bd7f39ecb6112850 SHA-1: 6ad9fa89cf299ab6b3ad170319c736fb9b264902 SHA-256: 4cc3400361fce80793e8fc5b70553da98575efb929484264dadd97163240d7e0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a critical heuristic firing for requesting recovery secrets or private keys, indicating a phishing or social engineering attempt. It also contains an embedded URL pointing to a suspicious domain, likely intended to host a malicious payload or further phishing content. The document's content and the presence of a download-related heuristic suggest an attempt to trick the user into downloading a file.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9832

Heuristics 4

  • Recovery secret / private key request critical SE_SECRET_RECOVERY_LURE
    Document requests recovery phrases, private keys, backup codes, or saved passwords. Requests for these secrets in a document are high-risk.
  • 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.tw/app/431946152/store-empire-beta-cheats-roblox-game-hack
    • http://library.apsidoarjo.ac.id/repository/free-coin-master-app_GM406889139.pdf
    • http://library.apsidoarjo.ac.id/repository/robux-2021_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/free-obc-thumbnail-roblox_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/get-free-robux-in-roblox-2021_GM431946152.pdf
    • http://library.apsidoarjo.ac.id//repository/official-coin-master-free-spins_GM406889139.pdf
    • http://library.apsidoarjo.ac.id//repository/coin-master-online-free-spin_GM406889139.pdf
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-cards_GM406889139.pdf
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-cards-2021_GM406889139.pdf
    • http://library.apsidoarjo.ac.id/repository/coin-master-cheats-2021_GM406889139.pdf
    • http://library.apsidoarjo.ac.id/repository/free-roebucks-no-human-verification_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/how-do-you-get-free-daily-spins-on-coin-master_GM406889139.pdf
    • http://library.apsidoarjo.ac.id/repository/comandos-para-free-admin-roblox_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/coin-master-free-spins-2021-blogspot_GM406889139.pdf
    • http://library.apsidoarjo.ac.id//repository/coin-master-code-hack_GM406889139.pdf
    • http://library.apsidoarjo.ac.id//repository/free-spins-coin-master-hack_GM406889139.pdf
    • http://library.apsidoarjo.ac.id//repository/coin-master-free-spins-deutsch-download-2021-link_GM406889139.pdf
    • http://library.apsidoarjo.ac.id//repository/girl-roblox-avatar_GM431946152.pdf
    • http://library.apsidoarjo.ac.id/repository/how-to-get-verified-on-tiktok-for-free_GM835599320.pdf
    • http://library.apsidoarjo.ac.id//repository/coin-master-hack-tool-v1-9-download-free-pc_GM406889139.pdf
    • http://library.apsidoarjo.ac.id/repository/how-to-make-free-robux-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off0000512f.bin
1f8e8de9e7b0aa6e67c2e932c78a7218f548d7fe6a40773afc9e2fca2c9d2877		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x512F 27920 bytes
font_01_sfnt_off00009120.bin
d32997797ba724a3806616be0274a48a3f626b21b65a86b89d84ed5145750db6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9120 18840 bytes

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