Analysis

  • max time kernel
    138s
  • resource
    win10v191014
  • submitted
    09-12-2019 15:19

General

  • Target

    085519b091ec0e37ceff9c8142ea8fa07d829122d7e31276b1d300697643cfc7.exe

  • Sample

    191209-yh339twrkj

  • SHA256

    085519b091ec0e37ceff9c8142ea8fa07d829122d7e31276b1d300697643cfc7

Malware Config

Extracted

Family

emotet

C2

24.27.122.202:80

67.171.182.231:80

190.171.135.235:80

103.9.145.19:8080

46.105.128.215:8080

172.105.213.30:80

69.30.205.162:7080

115.179.91.58:80

181.44.166.242:80

78.46.87.133:8080

81.213.145.45:443

83.156.88.159:80

210.111.160.220:80

195.191.107.67:80

192.241.220.183:8080

1.32.54.12:8080

192.161.190.171:8080

190.189.79.73:80

122.11.164.183:80

41.77.74.214:443

rsa_pubkey.plain

Signatures

  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Drops file in Windows directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Emotet

    Emotet is a trojan that is primarily spread through spam emails

  • Drops file in System32 directory 6 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\085519b091ec0e37ceff9c8142ea8fa07d829122d7e31276b1d300697643cfc7.exe
    "C:\Users\Admin\AppData\Local\Temp\085519b091ec0e37ceff9c8142ea8fa07d829122d7e31276b1d300697643cfc7.exe"
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4940
    • C:\Users\Admin\AppData\Local\Temp\085519b091ec0e37ceff9c8142ea8fa07d829122d7e31276b1d300697643cfc7.exe
      --dc816563
      2⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious behavior: RenamesItself
      • Drops file in System32 directory
      PID:4104
  • C:\Windows\system32\SppExtComObj.exe
    C:\Windows\system32\SppExtComObj.exe -Embedding
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5016
    • 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:5044
    • C:\Windows\SysWOW64\netshhant.exe
      "C:\Windows\SysWOW64\netshhant.exe"
      1⤵
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:992
      • C:\Windows\SysWOW64\netshhant.exe
        --57c5fca7
        2⤵
        • Suspicious use of SetWindowsHookEx
        • Suspicious behavior: EnumeratesProcesses
        • Drops file in System32 directory
        PID:4376
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s BITS
      1⤵
      • Drops file in Windows directory
      PID:3616
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s SSDPSRV
      1⤵
        PID:4604
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s DoSvc
        1⤵
          PID:4156
        • \??\c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s wscsvc
          1⤵
            PID:4856
          • \??\c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k unistacksvcgroup
            1⤵
              PID:2404

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/992-2-0x0000000000700000-0x0000000000717000-memory.dmp

              Filesize

              92KB

            • memory/4104-1-0x0000000002000000-0x0000000002017000-memory.dmp

              Filesize

              92KB

            • memory/4376-3-0x0000000000560000-0x0000000000577000-memory.dmp

              Filesize

              92KB

            • memory/4940-0-0x00000000007B0000-0x00000000007C7000-memory.dmp

              Filesize

              92KB