Analysis

  • max time kernel
    132s
  • resource
    win10v191014
  • submitted
    09-12-2019 21:06

General

  • Target

    5ab974ead53fe2ec317e5f9b30dee0c195014cab15ff7a0fb9024da735d1917b.exe

  • Sample

    191209-m96h8k52dx

  • SHA256

    5ab974ead53fe2ec317e5f9b30dee0c195014cab15ff7a0fb9024da735d1917b

Malware Config

Extracted

Family

emotet

C2

76.221.133.146:80

104.33.129.244:80

172.90.70.168:8080

96.126.121.64:443

104.236.137.72:8080

172.104.233.225:8080

85.234.143.94:8080

50.28.51.143:8080

190.186.164.23:80

47.146.42.234:80

63.246.252.234:80

80.29.54.20:80

68.183.190.199:8080

46.28.111.142:7080

183.82.97.25:80

87.106.46.107:8080

188.216.24.204:80

186.68.48.204:443

181.198.203.45:443

88.250.223.190:8080

rsa_pubkey.plain

Signatures

  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious behavior: EmotetMutantsSpam 2 IoCs
  • Emotet

    Emotet is a trojan that is primarily spread through spam emails

  • Drops file in System32 directory 6 IoCs
  • Drops file in Windows directory 1 IoCs
  • Checks system information in the registry 2 TTPs 2 IoCs

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

  • Windows security modification 2 TTPs 2 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\5ab974ead53fe2ec317e5f9b30dee0c195014cab15ff7a0fb9024da735d1917b.exe
    "C:\Users\Admin\AppData\Local\Temp\5ab974ead53fe2ec317e5f9b30dee0c195014cab15ff7a0fb9024da735d1917b.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:5044
    • C:\Users\Admin\AppData\Local\Temp\5ab974ead53fe2ec317e5f9b30dee0c195014cab15ff7a0fb9024da735d1917b.exe
      --137bb2ce
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious behavior: EmotetMutantsSpam
      • Drops file in System32 directory
      • Suspicious behavior: RenamesItself
      PID:5104
  • C:\Windows\system32\SppExtComObj.exe
    C:\Windows\system32\SppExtComObj.exe -Embedding
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:68
    • C:\Windows\System32\SLUI.exe
      "C:\Windows\System32\SLUI.exe" RuleId=eeba1977-569e-4571-b639-7623d8bfecc0;Action=AutoActivate;AppId=55c92734-d682-4d71-983e-d6ec3f16059f;SkuId=2de67392-b7a7-462a-b1ca-108dd189f588;NotificationInterval=1440;Trigger=TimerEvent
      2⤵
        PID:1716
    • C:\Windows\SysWOW64\stucktextto.exe
      "C:\Windows\SysWOW64\stucktextto.exe"
      1⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4532
      • C:\Windows\SysWOW64\stucktextto.exe
        --e6ccfa5a
        2⤵
        • Suspicious use of SetWindowsHookEx
        • Suspicious behavior: EmotetMutantsSpam
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        PID:4604
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s BITS
      1⤵
      • Drops file in Windows directory
      PID:4696
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s SSDPSRV
      1⤵
        PID:4796
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s DoSvc
        1⤵
          PID:4168
        • \??\c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k unistacksvcgroup
          1⤵
            PID:2364
          • \??\c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s wscsvc
            1⤵
              PID:2452

            Network

            MITRE ATT&CK Matrix ATT&CK v6

            Defense Evasion

            Disabling Security Tools

            1
            T1089

            Modify Registry

            1
            T1112

            Discovery

            Query Registry

            1
            T1012

            System Information Discovery

            1
            T1082

            Replay Monitor

            Loading Replay Monitor...

            Downloads

            • memory/4532-3-0x0000000000DE0000-0x0000000000DF7000-memory.dmp
              Filesize

              92KB

            • memory/4604-4-0x0000000000C40000-0x0000000000C57000-memory.dmp
              Filesize

              92KB

            • memory/4604-5-0x0000000000400000-0x0000000000455000-memory.dmp
              Filesize

              340KB

            • memory/5044-0-0x0000000002370000-0x0000000002387000-memory.dmp
              Filesize

              92KB

            • memory/5104-1-0x00000000021F0000-0x0000000002207000-memory.dmp
              Filesize

              92KB

            • memory/5104-2-0x0000000000400000-0x0000000000455000-memory.dmp
              Filesize

              340KB