Malicious PDF — malware analysis report

Static analysis result for SHA-256 ca0884607f1d3fa7…

MALICIOUS

PDF

34.9 KB Created: 2021-07-05 11:51:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 483f661de3e622f658af517edc2e9767 SHA-1: 673b57d28a8e006c6b7d44755183d707f89705e8 SHA-256: ca0884607f1d3fa7219f180a459c62653db9bd77c7568df89a6cb7f088ecc015
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains multiple embedded URLs and a prominent external URI pointing to sites offering game hacks and cheats, suggesting a lure for users seeking such content. The ML classifier strongly flagged this PDF as malicious, and the presence of callback phishing indicators further supports a malicious intent. The document likely serves as a phishing or malware delivery mechanism by directing users to potentially harmful external resources.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.tw/app/431946152/how-to-stop-cheat-engine-on-roblox-game-hack
    • https://slims.bakrie.ac.id/textbook/repository/how-to-have-free-robux-in-a-web_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/race-7-mejor-hack-roblox_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/coinmasterfreespins_GM406889139.pdf
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-spins-hack_GM406889139.pdf
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-group_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/how-to-scam-on-roblox_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-email-rewards-link_GM406889139.pdf
    • https://slims.bakrie.ac.id/textbook/repository/free-robux-obby-2021_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/minecraft-hack-2021_GM479516143.pdf
    • https://slims.bakrie.ac.id/textbook/repository/how-to-hack-roblox-accounts-on-phone-2021_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/robux-in_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/free-hair-in-roblox-boy_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/how-to-hack-in-roblox-prison-life-v20_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/free-russian-clothes-roblox_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/how-to-hack-coin-master-game-ios_GM406889139.pdf
    • https://slims.bakrie.ac.id/textbook/repository/how-to-be-a-admin-in-roblox-for-free_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/coun-master_GM406889139.pdf
    • https://slims.bakrie.ac.id/textbook/repository/how-to-get-free-robux-on-roblox-without-buying-anything_GM431946152.pdf
    • https://slims.bakrie.ac.id/textbook/repository/coin-master-hacks-iphone_GM406889139.pdf
    • https://slims.bakrie.ac.id/textbook/repository/travaille-dans-une-pizzeria-roblox-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031fe.bin
094522153f56e7d453130b361f5591afa51f5b82ad05e6dc3072571285b680a9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31FE 22276 bytes
font_01_sfnt_off00006367.bin
a338de4f1b914681b53fc0aee8e3da2e351865dffaf987cbc9cc395ce3e1a7a5		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6367 19028 bytes

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