Analysis

  • max time kernel
    150s
  • max time network
    148s
  • platform
    windows10_x64
  • resource
    win10v20210410
  • submitted
    11-05-2021 08:26

General

  • Target

    b2644f3bf8ccd3060d9a6682570abca14635cf8773a675f9d97170f9a771331b.exe

  • Size

    69KB

  • MD5

    757d5b86b196af656d9aad8619f9012b

  • SHA1

    196759e08a4fd2742fbd78bee5ef75bdc616fa51

  • SHA256

    b2644f3bf8ccd3060d9a6682570abca14635cf8773a675f9d97170f9a771331b

  • SHA512

    baa868482f48370c166115b0acbb7dc8cbe7fb8834409cb2ebbf12b2b4509c958094d6c40bbb3c695c8df73029d1a3383dda2a85ce984654df1ddd3b70a8c327

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 27 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\system32\DllHost.exe
    C:\Windows\system32\DllHost.exe /Processid:{3EB3C877-1F16-487C-9050-104DBCD66683}
    1⤵
      PID:3812
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 3812 -s 844
        2⤵
        • Program crash
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1304
    • C:\Windows\System32\RuntimeBroker.exe
      C:\Windows\System32\RuntimeBroker.exe -Embedding
      1⤵
        PID:3492
      • C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe
        "C:\Windows\SystemApps\Microsoft.Windows.Cortana_cw5n1h2txyewy\SearchUI.exe" -ServerName:CortanaUI.AppXa50dqqa5gqv4a428c9y1jjw7m3btvepj.mca
        1⤵
          PID:3248
        • C:\Users\Admin\AppData\Local\Temp\b2644f3bf8ccd3060d9a6682570abca14635cf8773a675f9d97170f9a771331b.exe
          "C:\Users\Admin\AppData\Local\Temp\b2644f3bf8ccd3060d9a6682570abca14635cf8773a675f9d97170f9a771331b.exe"
          1⤵
          • Suspicious use of WriteProcessMemory
          PID:2116
          • C:\Windows\SysWOW64\winver.exe
            winver
            2⤵
            • Adds Run key to start application
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of FindShellTrayWindow
            • Suspicious use of WriteProcessMemory
            PID:2700
        • C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe
          "C:\Windows\SystemApps\ShellExperienceHost_cw5n1h2txyewy\ShellExperienceHost.exe" -ServerName:App.AppXtk181tbxbce2qsex02s8tw7hfxa9xb3t.mca
          1⤵
            PID:3236
          • C:\Windows\Explorer.EXE
            C:\Windows\Explorer.EXE
            1⤵
            • Suspicious behavior: GetForegroundWindowSpam
            • Suspicious use of AdjustPrivilegeToken
            PID:3020
          • c:\windows\system32\taskhostw.exe
            taskhostw.exe {222A245B-E637-4AE9-A93F-A59CA119A75E}
            1⤵
              PID:2744
            • c:\windows\system32\svchost.exe
              c:\windows\system32\svchost.exe -k unistacksvcgroup -s CDPUserSvc
              1⤵
                PID:2412
              • c:\windows\system32\sihost.exe
                sihost.exe
                1⤵
                  PID:2364
                • C:\Windows\system32\DllHost.exe
                  C:\Windows\system32\DllHost.exe /Processid:{AB8902B4-09CA-4BB6-B78D-A8F59079A8D5}
                  1⤵
                    PID:2500
                  • C:\Windows\System32\slui.exe
                    C:\Windows\System32\slui.exe -Embedding
                    1⤵
                      PID:776

                    Network

                    MITRE ATT&CK Enterprise v6

                    Replay Monitor

                    Loading Replay Monitor...

                    Downloads

                    • memory/776-130-0x0000000000430000-0x0000000000436000-memory.dmp

                      Filesize

                      24KB

                    • memory/1304-129-0x00000000000C0000-0x00000000000C6000-memory.dmp

                      Filesize

                      24KB

                    • memory/2116-116-0x0000000000470000-0x000000000051E000-memory.dmp

                      Filesize

                      696KB

                    • memory/2116-117-0x0000000002640000-0x0000000003040000-memory.dmp

                      Filesize

                      10.0MB

                    • memory/2116-114-0x0000000000400000-0x0000000000413000-memory.dmp

                      Filesize

                      76KB

                    • memory/2364-123-0x0000000000390000-0x0000000000396000-memory.dmp

                      Filesize

                      24KB

                    • memory/2412-125-0x0000000000560000-0x0000000000566000-memory.dmp

                      Filesize

                      24KB

                    • memory/2500-128-0x0000000000A20000-0x0000000000A26000-memory.dmp

                      Filesize

                      24KB

                    • memory/2700-115-0x0000000000000000-mapping.dmp

                    • memory/2700-118-0x00000000008F0000-0x00000000008F6000-memory.dmp

                      Filesize

                      24KB

                    • memory/2744-126-0x0000000000700000-0x0000000000706000-memory.dmp

                      Filesize

                      24KB

                    • memory/3020-122-0x00007FF878560000-0x00007FF878561000-memory.dmp

                      Filesize

                      4KB

                    • memory/3020-124-0x0000000000D90000-0x0000000000D96000-memory.dmp

                      Filesize

                      24KB

                    • memory/3020-121-0x00007FF878550000-0x00007FF878551000-memory.dmp

                      Filesize

                      4KB

                    • memory/3020-120-0x00007FF878540000-0x00007FF878541000-memory.dmp

                      Filesize

                      4KB

                    • memory/3020-119-0x0000000001380000-0x0000000001386000-memory.dmp

                      Filesize

                      24KB

                    • memory/3492-127-0x0000000000FD0000-0x0000000000FD6000-memory.dmp

                      Filesize

                      24KB