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General

  • Target

    chromeupdate31761apk.apk

  • Size

    541KB

  • Sample

    230704-q6knwsdf58

  • MD5

    1c05aa3589911652b2f4daddaf71171d

  • SHA1

    5a0e10c2f7fc0ea513dda84a17cfc143ec7164ad

  • SHA256

    1289fb665610b4f5f9cfa5e37bd7e9ab0cc5f2b7b3ea841bef39c49680057536

  • SHA512

    458cbb4eff4210fdfa72854728cb0b17fa95760a160bbfa1a2d680fdedaf8e5340f480b1570b85bd3228e11657f343cea00d8b9c7c9db573eddb34e483c71ada

  • SSDEEP

    12288:mr+izRt+QZypgEuvdZPNXZMNl5LE9+4ORdR:mr5t+WymEu1/XZq5mwF

Malware Config

Extracted

Family

octo

C2

https://ufpyyrumrmdq.top/MTU2OWE0NzJjNGY5/

https://encgrcwfjntq.online/MTU2OWE0NzJjNGY5/

https://fbpxbqebmqto.info/MTU2OWE0NzJjNGY5/

https://ieuzqomcdodp.site/MTU2OWE0NzJjNGY5/

https://157y0toa2u40.hk/MTU2OWE0NzJjNGY5/

https://6dtav5rvnh1q.in/MTU2OWE0NzJjNGY5/

AES_key

Targets

    • Target

      chromeupdate31761apk.apk

    • Size

      541KB

    • MD5

      1c05aa3589911652b2f4daddaf71171d

    • SHA1

      5a0e10c2f7fc0ea513dda84a17cfc143ec7164ad

    • SHA256

      1289fb665610b4f5f9cfa5e37bd7e9ab0cc5f2b7b3ea841bef39c49680057536

    • SHA512

      458cbb4eff4210fdfa72854728cb0b17fa95760a160bbfa1a2d680fdedaf8e5340f480b1570b85bd3228e11657f343cea00d8b9c7c9db573eddb34e483c71ada

    • SSDEEP

      12288:mr+izRt+QZypgEuvdZPNXZMNl5LE9+4ORdR:mr5t+WymEu1/XZq5mwF

    • Octo

      Octo is a banking malware with remote access capabilities first seen in April 2022.

    • Octo payload

    • Makes use of the framework's Accessibility service.

    • Queries a list of all the installed applications on the device (Might be used in an attempt to overlay legitimate apps).

    • Acquires the wake lock.

    • Loads dropped Dex/Jar

      Runs executable file dropped to the device during analysis.

    • Reads information about phone network operator.

    • Requests disabling of battery optimizations (often used to enable hiding in the background).

    • Removes a system notification.

    • Uses Crypto APIs (Might try to encrypt user data).

MITRE ATT&CK Matrix

Tasks