Analysis

  • max time kernel
    161s
  • max time network
    166s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    30/08/2021, 06:14

General

  • Target
    0f3729ddca29dc127a69ea18f0ead1c0593d29a8214e23b5170e91602be3feb3.exe
  • Size 1024KB
  • Sample210830-a47b6az7na
  • SHA256 0f3729ddca29dc127a69ea18f0ead1c0593d29a8214e23b5170e91602be3feb3
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • Tinba / TinyBanker

    Banking trojan which uses packet sniffing to steal data.

  • Adds Run key to start application 2 TTPs 2 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 11 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of UnmapMainImage 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
    "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
    1⤵
      PID:3264
    • C:\Windows\system32\DllHost.exe
      C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
      1⤵
        PID:3796
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 3796 -s 844
          2⤵
          • Program crash
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          PID:3524
      • C:\Windows\System32\RuntimeBroker.exe
        C:\Windows\System32\RuntimeBroker.exe -Embedding
        1⤵
          PID:3508
        • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
          "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
          1⤵
            PID:3276
          • C:\Windows\Explorer.EXE
            C:\Windows\Explorer.EXE
            1⤵
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            • Suspicious use of UnmapMainImage
            PID:3028
            • C:\Users\Admin\AppData\Local\Temp\0f3729ddca29dc127a69ea18f0ead1c0593d29a8214e23b5170e91602be3feb3.exe
              "C:\Users\Admin\AppData\Local\Temp\0f3729ddca29dc127a69ea18f0ead1c0593d29a8214e23b5170e91602be3feb3.exe"
              2⤵
              • Suspicious use of WriteProcessMemory
              PID:4044
              • C:\Windows\SysWOW64\winver.exe
                winver
                3⤵
                • Adds Run key to start application
                • Suspicious behavior: EnumeratesProcesses
                • Suspicious use of FindShellTrayWindow
                • Suspicious use of WriteProcessMemory
                PID:2024
          • c:\windows\system32\taskhostw.exe
            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
            1⤵
              PID:2492
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k unistacksvcgroup -s CDPUserSvc
              1⤵
                PID:2380
              • c:\windows\system32\sihost.exe
                sihost.exe
                1⤵
                  PID:2360
                • C:\Windows\System32\slui.exe
                  C:\Windows\System32\slui.exe -Embedding
                  1⤵
                    PID:3272

                  Network

                        MITRE ATT&CK Enterprise v6

                        Replay Monitor

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                        Downloads

                        memory/2024-118-0x00000000033E0000-0x00000000033E6000-memory.dmp

                        memory/2360-120-0x0000000000470000-0x0000000000476000-memory.dmp

                        memory/2380-122-0x00000000006B0000-0x00000000006B6000-memory.dmp

                        memory/2492-123-0x0000000000450000-0x0000000000456000-memory.dmp

                        memory/3028-119-0x0000000000FF0000-0x0000000000FF6000-memory.dmp

                        memory/3028-121-0x0000000000E00000-0x0000000000E06000-memory.dmp

                        memory/3028-128-0x00007FFB9C700000-0x00007FFB9C701000-memory.dmp

                        memory/3272-129-0x0000000000520000-0x0000000000526000-memory.dmp

                        memory/3508-124-0x0000000000A10000-0x0000000000A16000-memory.dmp

                        memory/3524-125-0x0000000000350000-0x0000000000356000-memory.dmp

                        memory/3524-126-0x00007FFB9C6E0000-0x00007FFB9C6E1000-memory.dmp

                        memory/3524-127-0x00007FFB9C6F0000-0x00007FFB9C6F1000-memory.dmp

                        memory/4044-114-0x0000000000400000-0x000000000041A000-memory.dmp

                        memory/4044-117-0x00000000022B0000-0x0000000002CB0000-memory.dmp

                        memory/4044-116-0x0000000000460000-0x0000000000483000-memory.dmp