Malicious PDF — malware analysis report

Static analysis result for SHA-256 be36632f0d5d4c3d…

MALICIOUS

PDF

35.9 KB Created: 2021-05-24 03:14:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-16
MD5: 984023ce8b6a6b93218c15ac1489e994 SHA-1: 18c89834eae90cb4acc50b2cfafa64e2c7c8241b SHA-256: be36632f0d5d4c3d9ec36ce3def083056bf1352ece898498440b24ae6a28caf6
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution T1071.001 Web Protocols

The PDF document contains a lure impersonating Facebook, directing users to a URL that claims to offer a free Minecraft generator. This is a common tactic for credential phishing or distributing malware. The ML classifier strongly flagged this PDF as malicious, and the embedded URI points to a suspicious domain associated with such lures. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to exploit user interaction.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 4

  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/479516143/how-to-get-minecraft-bedrock-edition-for-free-game-hack.
  • 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/how-to-get-minecraft-bedrock-edition-for-free-game-hack PDF link annotation
    • http://www.exikom.com.ua/images/coin-master-hack-app-2021_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • http://www.exikom.com.ua/images/krnl-download_GM431946152.pdfIn PDF document text
    • http://www.exikom.com.ua/images/cheating-hacks-for-coin-master_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off0000337f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x337F 24296 bytes
SHA-256: 88c13df175847de762e7a3fc23fe3bb9a0901af029e9de5e56f1a552c5927981
font_01_sfnt_off00006a67.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A67 18436 bytes
SHA-256: 3a0999d30397def23c47b5d80e97d9b0f28df4cbffb45a09cf4ec0f6b7597619

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