Malicious PDF — malware analysis report

Static analysis result for SHA-256 1be09896831ef6f5…

MALICIOUS

PDF

44.5 KB Created: 2021-05-13 13:07:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 51014b21cde8ef0acebfc0a6c37dbf4e SHA-1: 94a372c85d00176c03aaaa2e801478693143dce2 SHA-256: 1be09896831ef6f50504001a197cc605bfef69a4aefad4c3f6e30d844fdc307d
62 Risk Score

Malware Insights

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

The PDF document contains embedded links and a visual call-to-action button, strongly suggesting a lure to download a malicious file. The ML classifier also flagged this PDF as malicious with high confidence. The primary URL points to a resource related to game hacks, indicating a social engineering tactic to trick users into downloading potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9632

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/free-money-and-spins-coin-master-game-hack
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-spins-and-coins-coin-master-2021-link_GM406889139.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-robux-generator-no-human-verification_GM431946152.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/robux-without-verification_GM431946152.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/how-to-hack-roblox-accounts-on-phone_GM431946152.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/how-to-get-free-shirts-on-roblox_GM431946152.pdf
    • http://elearning.mysadam.info/__statics/gudangsoal/files/coin-master-hack-2021_GM406889139.pdf
    • http://elearning.mysadam.info/__statics/gudangsoal/files/roblox-hack-com_GM431946152.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-robux-websites-that-actually-work-2021_GM431946152.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/how-to-get-free-robux-for-real_GM431946152.pdf
    • http://elearning.mysadam.info/__statics/gudangsoal/files/how-to-win-attack-madness-in-coin-master-hack_GM406889139.pdf
    • http://elearning.mysadam.info/__statics/gudangsoal/files/hack-coin-master-game-download_GM406889139.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-ios-hack-download_GM406889139.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-roblox-hair-to-wear_GM431946152.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/coin-master-tricks_GM406889139.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-roblox-clothes-templates_GM431946152.pdf
    • http://elearning.mysadam.info/__statics/gudangsoal/files/give-free-robux_GM431946152.pdf
    • http://elearning.mysadam.info/__statics/gudangsoal/files/minecraft-windows-10-edition-hacked-client_GM479516143.pdf
    • http://elearning.mysadam.info/__statics/gudangsoal/files/minecraft-bedrock-for-free_GM479516143.pdf
    • http://elearning.mysadam.info/__statics/gudangsoal/files/www-coin-master-hack-com_GM406889139.pdf
    • http://www.elearning.mysadam.info/__statics/gudangsoal/files/free-robux-generator-no-human-verification-or-survey-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c8e.bin
7cddc769e2ba4d91ae793b739dacfd001211c9a516967fc618a0b9d60b7aa85a		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C8E 23564 bytes
font_01_sfnt_off000081d7.bin
3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81D7 2840 bytes
font_02_sfnt_off00008b89.bin
525102074b705849839f7d5611fdda8b0861bf7ff3fecfbcca1449f40502e068		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8B89 18240 bytes

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