Malicious PDF — malware analysis report

Static analysis result for SHA-256 0fa6181d9421f38c…

MALICIOUS

PDF

36.3 KB Created: 2021-05-20 20:11:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 5f855022bd4dac2ae6c8004a80436e1d SHA-1: c5f909fa9c831fe7da3ac2e7fe81ee7614b9b934 SHA-256: 0fa6181d9421f38c0ae653094c71fed6b87300de78a233d3ff04dcee73a03d1b
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 Apple, directing users to a link that claims to offer a Minecraft generator. This is a common tactic for credential phishing or distributing malware. The ML classifier strongly flagged this PDF as malicious, and the external URI points to a suspicious domain associated with game hacks. No scripts were extracted, but the document's structure and embedded links suggest an attempt to exploit user interest in free in-game items to compromise their systems.

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/minecraft-1.15-2-hacks-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/minecraft-1.15-2-hacks-game-hack PDF link annotation
    • http://belajar.maalfalaahiyah.sch.id/__statics/gudangsoal/files/free-coins-coin-master-blog_GM406889139.pdfIn PDF document text
    • http://belajar.maalfalaahiyah.sch.id/__statics/gudangsoal/files/free-roblox-accounts-with-robux-2021_GM431946152.pdfIn PDF document text
    • http://belajar.maalfalaahiyah.sch.id/__statics/gudangsoal/files/free-roblox-gfx_GM431946152.pdfIn PDF document text
    • http://belajar.maalfalaahiyah.sch.id/__statics/gudangsoal/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://belajar.maalfalaahiyah.sch.id/__statics/gudangsoal/files/free-robux-place_GM431946152.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_off00003415.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3415 25076 bytes
SHA-256: aba67a419379a6e4726224c450990ef3d1cf1fa8057f28cd3933d6f19828f056
font_01_sfnt_off00006cdd.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CDD 18168 bytes
SHA-256: db08b96da71f6ddfbe6b519ed50ce659f2c78f4173f4a3128d613ddf1b801d62

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