Malicious PDF — malware analysis report

Static analysis result for SHA-256 6db8609690f87cf9…

MALICIOUS

PDF

42.1 KB Created: 2021-05-12 01:30:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: aad380bac216398d33a67d593d4ec2c1 SHA-1: be768acf13993df927921850c6514460146c1997 SHA-256: 6db8609690f87cf94a62a9f6d8ce5d1478c3ed5fb79f6a9451f220d5c325dd30
62 Risk Score

Malware Insights

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

The PDF document contains an embedded URL and a visual call-to-action, strongly suggesting a lure to download a malicious file, specifically a 'Minecraft Hacked Client'. The ML classifier also flagged this PDF with high confidence. The presence of a callback lure heuristic indicates a potential for further social engineering tactics.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/479516143/minecraft-hacked-client-game-hack
    • http://pustaka.polbangtan-gowa.ac.id/repository/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-robux-by-watching-ads_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/can-you-make-a-minecraft-server-for-free_GM479516143.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/bloxpink-free-robux_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/robux-game-com_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/google-coin-master-free-spins_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-spins-coin-master-2021-glitch_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-spins-coin-master-facebook_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/free-coin-master-spins-blog_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/roblox-www-com_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/coin-master-hack-online-without-human-verification_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/huskybuscom-free-robux_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/how-to-get-free-robux-without-paying_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/free-robux-no-gift-card_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/coin-master-free-spin-and-coin-link-app_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/hack-coin-master-online-without-human-verification_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/https-rbx-place-rewards_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://pustaka.polbangtan-gowa.ac.id/repository/free-coin-master-spins-link-download_GM406889139.pdf
    • http://pustaka.polbangtan-gowa.ac.id//repository/how-to-get-free-minecraft-coins_GM479516143.pdf
    • https://sigmaclient.info#2
    • https://flux.today#3
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004aea.bin
9f439159fdc7b9913a21305ad2c533bfd3002a0a66e0444fa31b97dbb22c0c13		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4AEA 25144 bytes
font_01_sfnt_off00008370.bin
60084e38a3b13cc374d8b54708ec2a3852040562095209170bda5240b53bf335		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8370 17988 bytes

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