Malicious PDF — malware analysis report

Static analysis result for SHA-256 995cacd0a88d9784…

MALICIOUS

PDF

35.3 KB Created: 2021-06-19 11:19:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: e6d8ef4cc31e4ca49213b7fc2a15f73f SHA-1: a5adcac716bb6d23c660b140ac5c4162d96c59af SHA-256: 995cacd0a88d9784318a7aa8c595ebbc807e2e1560fdd55a81875bf60b0e9353
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded URLs and a document body that lures users with promises of game hacks and cheats, specifically mentioning Roblox and Coin Master. The presence of external URIs and the ML classifier's high confidence score indicate malicious intent, likely to redirect users to download further malware or engage in phishing. No scripts were extracted from this sample, but the overall pattern suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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.co/app/431946152/happy-birthday-isabella-roblox-speed-hacks-game-hack
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/how-to-get-coin-master-free-spins-in-email_GM406889139.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/how-do-we-get-free-robux_GM431946152.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/robux-free-real-2021_GM431946152.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/free-robux-hacks-no-verification_GM431946152.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/how-to-hack-a-roblox-account-easy_GM431946152.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/how-to-get-free-coins-in-coin-master_GM406889139.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/roblox-pink-free-robux_GM431946152.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/coin-master-links-for-free-spins-2021_GM406889139.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/unlimited-spin-coin-master-hack_GM406889139.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/free-roblox-gfx_GM431946152.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/coin-master-free-spins-2021_GM406889139.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/hack-coin-master-apk-32_GM406889139.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/cheats-to-become-bear-on-bear-roblox_GM431946152.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/free-robux-cards_GM431946152.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/roblox-royale-high-diamond-hack-no-human-verification_GM431946152.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/free-spins-coin-master-hack-2021_GM406889139.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/pokemon-go-free-metagross_GM1094591345.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/gamehunters-coin-master_GM406889139.pdf
    • https://kab-bangli.kpu.go.id/new/public/ckfinder/userfiles/files/xray-mod-minecraft-114_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002e4c.bin
79f2dc4a80cef83a601958a81d24a44015ee562fcb8214656bc4c2b2e7fbdcc9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2E4C 23836 bytes
font_01_sfnt_off000063b0.bin
250ea3bf988f21aa5245b7fcb72281dd0c8d90d44466e64633fe22e8c7b65b4d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x63B0 19576 bytes

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