Analysis

  • max time kernel
    81s
  • max time network
    112s
  • platform
    windows10_x64
  • resource
    win10v20201028
  • submitted
    03-01-2021 06:01

General

  • Target

    3df00736cd98aedc6145d6163a1cf28117c4402736e004d574c3fb3a7f036357.exe

  • Size

    706KB

  • MD5

    170faeb45ecbd3499349403e53573a5f

  • SHA1

    db9b93e719fb25b9621930ad03581b8ff0bf418f

  • SHA256

    3df00736cd98aedc6145d6163a1cf28117c4402736e004d574c3fb3a7f036357

  • SHA512

    a23f9e1d0f09a979e8b7abacbb3b1fa320e2598b399ac6e9e831845dec1151fa5640f4dd376736f334517de675f6b6e9117e151371d58f7fbaeb85d24a64c8ff

Malware Config

Extracted

Family

azorult

C2

http://195.245.112.115/index.php

Extracted

Family

oski

C2

malscxa.ac.ug

Signatures

  • Azorult

    An information stealer that was first discovered in 2016, targeting browsing history and passwords.

  • Oski

    Oski is an infostealer targeting browser data, crypto wallets.

  • Downloads MZ/PE file
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Checks processor information in registry 2 TTPs 1 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Kills process with taskkill 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\3df00736cd98aedc6145d6163a1cf28117c4402736e004d574c3fb3a7f036357.exe
    "C:\Users\Admin\AppData\Local\Temp\3df00736cd98aedc6145d6163a1cf28117c4402736e004d574c3fb3a7f036357.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:640
    • C:\Users\Admin\AppData\Local\Temp\oghkdfgh.exe
      "C:\Users\Admin\AppData\Local\Temp\oghkdfgh.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious use of WriteProcessMemory
      PID:2204
      • C:\Users\Admin\AppData\Local\Temp\oghkdfgh.exe
        "{path}"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks processor information in registry
        • Suspicious use of WriteProcessMemory
        PID:908
        • C:\Windows\SysWOW64\cmd.exe
          "C:\Windows\System32\cmd.exe" /c taskkill /pid 908 & erase C:\Users\Admin\AppData\Local\Temp\oghkdfgh.exe & RD /S /Q C:\\ProgramData\\585105622959450\\* & exit
          4⤵
          • Suspicious use of WriteProcessMemory
          PID:1856
          • C:\Windows\SysWOW64\taskkill.exe
            taskkill /pid 908
            5⤵
            • Kills process with taskkill
            • Suspicious use of AdjustPrivilegeToken
            PID:2712
    • C:\Users\Admin\AppData\Local\Temp\3df00736cd98aedc6145d6163a1cf28117c4402736e004d574c3fb3a7f036357.exe
      "{path}"
      2⤵
        PID:580
      • C:\Users\Admin\AppData\Local\Temp\3df00736cd98aedc6145d6163a1cf28117c4402736e004d574c3fb3a7f036357.exe
        "{path}"
        2⤵
          PID:2704
        • C:\Users\Admin\AppData\Local\Temp\3df00736cd98aedc6145d6163a1cf28117c4402736e004d574c3fb3a7f036357.exe
          "{path}"
          2⤵
            PID:1444

        Network

        MITRE ATT&CK Matrix ATT&CK v6

        Credential Access

        Credentials in Files

        2
        T1081

        Discovery

        Query Registry

        2
        T1012

        System Information Discovery

        2
        T1082

        Collection

        Data from Local System

        2
        T1005

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\oghkdfgh.exe
          MD5

          593eea90e533ed14757d62b4f2c7d969

          SHA1

          0c7deb4ac306dac893c6ba30f81d9519a3f409a6

          SHA256

          6d699346640d5489ea376abc4d3aebefaeb5a3966f79a8bc42840ecabac54643

          SHA512

          c069f0c550724a5b509ad9c8d94f037a3e0a4758df8c4bb5b7c265a350a14d541fb111c72dda9a0f4b736d71236bb9192d9b9fc03de7647c24cdfc428bd8b678

        • C:\Users\Admin\AppData\Local\Temp\oghkdfgh.exe
          MD5

          593eea90e533ed14757d62b4f2c7d969

          SHA1

          0c7deb4ac306dac893c6ba30f81d9519a3f409a6

          SHA256

          6d699346640d5489ea376abc4d3aebefaeb5a3966f79a8bc42840ecabac54643

          SHA512

          c069f0c550724a5b509ad9c8d94f037a3e0a4758df8c4bb5b7c265a350a14d541fb111c72dda9a0f4b736d71236bb9192d9b9fc03de7647c24cdfc428bd8b678

        • C:\Users\Admin\AppData\Local\Temp\oghkdfgh.exe
          MD5

          593eea90e533ed14757d62b4f2c7d969

          SHA1

          0c7deb4ac306dac893c6ba30f81d9519a3f409a6

          SHA256

          6d699346640d5489ea376abc4d3aebefaeb5a3966f79a8bc42840ecabac54643

          SHA512

          c069f0c550724a5b509ad9c8d94f037a3e0a4758df8c4bb5b7c265a350a14d541fb111c72dda9a0f4b736d71236bb9192d9b9fc03de7647c24cdfc428bd8b678

        • \ProgramData\mozglue.dll
          MD5

          8f73c08a9660691143661bf7332c3c27

          SHA1

          37fa65dd737c50fda710fdbde89e51374d0c204a

          SHA256

          3fe6b1c54b8cf28f571e0c5d6636b4069a8ab00b4f11dd842cfec00691d0c9cd

          SHA512

          0042ecf9b3571bb5eba2de893e8b2371df18f7c5a589f52ee66e4bfbaa15a5b8b7cc6a155792aaa8988528c27196896d5e82e1751c998bacea0d92395f66ad89

        • \ProgramData\nss3.dll
          MD5

          bfac4e3c5908856ba17d41edcd455a51

          SHA1

          8eec7e888767aa9e4cca8ff246eb2aacb9170428

          SHA256

          e2935b5b28550d47dc971f456d6961f20d1633b4892998750140e0eaa9ae9d78

          SHA512

          2565bab776c4d732ffb1f9b415992a4c65b81bcd644a9a1df1333a269e322925fc1df4f76913463296efd7c88ef194c3056de2f1ca1357d7b5fe5ff0da877a66

        • \ProgramData\sqlite3.dll
          MD5

          e477a96c8f2b18d6b5c27bde49c990bf

          SHA1

          e980c9bf41330d1e5bd04556db4646a0210f7409

          SHA256

          16574f51785b0e2fc29c2c61477eb47bb39f714829999511dc8952b43ab17660

          SHA512

          335a86268e7c0e568b1c30981ec644e6cd332e66f96d2551b58a82515316693c1859d87b4f4b7310cf1ac386cee671580fdd999c3bcb23acf2c2282c01c8798c

        • memory/640-6-0x0000000004BC0000-0x0000000004BC1000-memory.dmp
          Filesize

          4KB

        • memory/640-10-0x0000000008390000-0x00000000083DF000-memory.dmp
          Filesize

          316KB

        • memory/640-9-0x0000000005170000-0x000000000517E000-memory.dmp
          Filesize

          56KB

        • memory/640-8-0x00000000081F0000-0x00000000081F1000-memory.dmp
          Filesize

          4KB

        • memory/640-7-0x0000000004BA0000-0x0000000004BA1000-memory.dmp
          Filesize

          4KB

        • memory/640-2-0x0000000073190000-0x000000007387E000-memory.dmp
          Filesize

          6.9MB

        • memory/640-5-0x0000000005180000-0x0000000005181000-memory.dmp
          Filesize

          4KB

        • memory/640-3-0x00000000002B0000-0x00000000002B1000-memory.dmp
          Filesize

          4KB

        • memory/908-27-0x0000000000417A8B-mapping.dmp
        • memory/908-26-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/908-29-0x0000000000400000-0x0000000000434000-memory.dmp
          Filesize

          208KB

        • memory/1444-17-0x0000000000400000-0x0000000000420000-memory.dmp
          Filesize

          128KB

        • memory/1444-16-0x000000000041A684-mapping.dmp
        • memory/1444-14-0x0000000000400000-0x0000000000420000-memory.dmp
          Filesize

          128KB

        • memory/1856-33-0x0000000000000000-mapping.dmp
        • memory/2204-18-0x0000000000A10000-0x0000000000A11000-memory.dmp
          Filesize

          4KB

        • memory/2204-25-0x00000000088D0000-0x0000000008933000-memory.dmp
          Filesize

          396KB

        • memory/2204-15-0x0000000073190000-0x000000007387E000-memory.dmp
          Filesize

          6.9MB

        • memory/2204-11-0x0000000000000000-mapping.dmp
        • memory/2712-34-0x0000000000000000-mapping.dmp