Malicious PDF — malware analysis report

Static analysis result for SHA-256 d2e6ac3f57ce89b5…

MALICIOUS

PDF

48.0 KB Created: 2021-05-16 07:16:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: a595a367f41dad0a2e0de6e85b9d21cf SHA-1: 251f9d26483a38cc2f63b66ccfaa32a94e6c2b77 SHA-256: d2e6ac3f57ce89b58b3014d6a2a08a338b2f93c2a5fdef1755049e9409dbc0f0
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a lure for Coin Master rewards, which is a common tactic for phishing or malware distribution. It includes a critical heuristic for requesting recovery secrets, indicating a high-risk social engineering attempt. The embedded URI and multiple other URLs point to external resources, likely for payload delivery or further phishing attempts.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8715

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.xyz/app/406889139/coin-master-rewards-free-spins-game-hack
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/roblox-controversy_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/freespinandcoin-blogspot-com_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-free-daily-spins-link_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-links-free-spins_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-app_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-apk_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-coin-master-links_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/how-to-get-free-snacks-on-coin-master_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-free-in-app-purchases-jailbreak_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-robux-place_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-hack-unlimited-spins-game-download_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/hack-coin-master-free-spins_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/can-you-actually-get-free-robux_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-avatar-roblox_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-rewards-app_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/coin-master-free-spins-today-new_GM406889139.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/john-doe-roblox-hacker_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/roblox-character-free_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/free-robux-no-verification-at-all_GM431946152.pdf
    • https://learning.min1rembang.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-codes_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 4

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a57.bin
e1060faea58156ac12a1e73228503ec0c35a4305a20e288e804e2c4463ad6ef6		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A57 25504 bytes
font_01_sfnt_off0000844d.bin
10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132		 pdf-font-stream PDF embedded font (sfnt) at offset 0x844D 2880 bytes
font_02_sfnt_off00008e37.bin
e3bc9749dc9baa5e723214be821330cae5b6b7c9985655e349a80ec6d91cde9f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E37 18224 bytes
font_03_sfnt_off0000b029.bin
e32c06502c11b52acb5e814091c5fdbffd1e2a904ac7a9cfb8b5b180bd139088		 pdf-font-stream PDF embedded font (sfnt) at offset 0xB029 3264 bytes

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