Malicious PDF — malware analysis report

Static analysis result for SHA-256 0b05166f9a548274…

MALICIOUS

PDF

44.2 KB Created: 2021-05-11 22:48:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 501973c05efadc86e3c378d9d23c595a SHA-1: aa61443fce8f05bde9b7a2fee41d2315592b939e SHA-256: 0b05166f9a548274730a0cc30ff043851b15eb5eaa3d9d8ddca5b1d3cb903cce
62 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs and a primary external URI pointing to game hack download sites, strongly suggesting a lure for users to download potentially malicious files. The presence of a visual download button lure and callback phishing indicators further supports a malicious intent, likely to trick users into downloading malware disguised as game cheats.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9648

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.xyz/app/406889139/facebook-coin-master-hack-game-hack
    • http://dcmetroapp.com/images/coin-master-cheats-and-hacks_GM406889139.pdf
    • http://dcmetroapp.com/images/roblox-game-free-download_GM431946152.pdf
    • http://dcmetroapp.com/images/free-roblox-accounts-with-robux-2021_GM431946152.pdf
    • http://dcmetroapp.com/images/giftrobux-com-generator_GM431946152.pdf
    • http://dcmetroapp.com/images/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdf
    • http://dcmetroapp.com/images/free-robux-on-ipad_GM431946152.pdf
    • http://dcmetroapp.com/images/free-spin-coin-master-iphone_GM406889139.pdf
    • http://dcmetroapp.com/images/roblox-hack-ios_GM431946152.pdf
    • http://dcmetroapp.com/images/master-coin-hack-app_GM406889139.pdf
    • http://dcmetroapp.com/images/get-free-robux-no-verification_GM431946152.pdf
    • http://dcmetroapp.com/images/free-spin-and-win-coin-master_GM406889139.pdf
    • http://dcmetroapp.com/images/robux-withdraw_GM431946152.pdf
    • http://dcmetroapp.com/images/coin-master-free-spins-link-2021-app_GM406889139.pdf
    • http://dcmetroapp.com/images/free-minecraft-gift-card_GM479516143.pdf
    • http://dcmetroapp.com/images/coin-master-time-hack_GM406889139.pdf
    • http://dcmetroapp.com/images/how-to-buy-robux-for-free_GM431946152.pdf
    • http://dcmetroapp.com/images/coin-master-unlimited-spin-apk-free-download_GM406889139.pdf
    • http://dcmetroapp.com/images/free-24-7-minecraft-server_GM479516143.pdf
    • http://dcmetroapp.com/images/roblox-install-free_GM431946152.pdf
    • http://dcmetroapp.com/images/coin-master-hack-tool-v1-9-download-free_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000491e.bin
97ea5f9e895c699d011b7d361e5768f8738482fa82c92cf5fd3fdd773505e587
decompressed-pdf-stream PDF FlateDecoded stream at offset 0x491E 24612 bytes
font_01_sfnt_off0000812b.bin
10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132
pdf-font-stream PDF embedded font (sfnt) at offset 0x812B 2880 bytes
font_02_sfnt_off00008b16.bin
05bcd154b4b80bf0f53e2a3055e74399dc4b8dcd1da6948cfb392e39c16bc03c
pdf-font-stream PDF embedded font (sfnt) at offset 0x8B16 18040 bytes