Malicious PDF — malware analysis report

Static analysis result for SHA-256 49dd0d628016467b…

MALICIOUS

PDF

52.2 KB Created: 2021-06-07 08:16:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b8631bdfea59728e4f81c75437b61255 SHA-1: 5229d97cf8a61a9b2fd201dfd40facce869369a1 SHA-256: 49dd0d628016467bb8c546d28034064614db07f0168ea3cb66b320e747210716
62 Risk Score

Malware Insights

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

The PDF document contains multiple embedded URLs and a primary external URI pointing to sites offering game hacks and free items, suggesting a lure for potentially unwanted software or malware. The presence of a 'download button' heuristic and the ML classifier's high confidence further support a malicious intent. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9464

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • 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/free-pets-adopt-me-roblox-game-hack
    • http://cintabaca.org/katalog/repository/minecraft-java-hacks_GM479516143.pdf
    • http://cintabaca.org/katalog/repository/robux-hack-no-verification_GM431946152.pdf
    • http://cintabaca.org/katalog/repository/how-to-hack-to-get-robux_GM431946152.pdf
    • http://cintabaca.org/katalog/repository/hack-coin-master-xyz_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/minecraft-free-download-iphone_GM479516143.pdf
    • http://cintabaca.org/katalog//repository/how-to-earn-robux-for-free-2021_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/freespinandcoin-blogspot-coin-master_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/free-roblox-accounts-with-robux_GM431946152.pdf
    • http://cintabaca.org/katalog/repository/no-human-verification_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/coin-master-game-free_GM406889139.pdf
    • http://cintabaca.org/katalog//repository/hack-my-game-xyz-coin-master_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/minecraft-cheats-pc-2021_GM479516143.pdf
    • http://cintabaca.org/katalog/repository/coin-master-free-spins-ios_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/unjailbreak-hack-roblox-descargar_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/coin-master-free-spin-software_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/give-free-robux_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/coin-master-free-spins-link-today-new_GM406889139.pdf
    • http://cintabaca.org/katalog/repository/free-robux-apk_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/tower-of-hell-roblox-hack_GM431946152.pdf
    • http://cintabaca.org/katalog//repository/free-robux-giveaway_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off000052e5.bin
1c98d619d0cd23f53a43187abe40ab3f831b4f93d0ddfbb76d517cc63f5c471a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x52E5 34212 bytes
font_01_sfnt_off00009dd1.bin
2df87bbe4e27b27e34c872c092d0522acd977d05f5cbde7ed5e1fdfeb59cb318		 pdf-font-stream PDF embedded font (sfnt) at offset 0x9DD1 2984 bytes
font_02_sfnt_off0000a81f.bin
9318328b301364ce11ba515277606ac9170e5e89b6b119dd0873208c14a447ba		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA81F 18752 bytes

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