Analysis

  • max time kernel
    201s
  • max time network
    221s
  • platform
    windows10-1703_x64
  • resource
    win10-20240221-en
  • resource tags

    arch:x64arch:x86image:win10-20240221-enlocale:en-usos:windows10-1703-x64system
  • submitted
    12-03-2024 20:03

General

  • Target

    task1.exe

  • Size

    188KB

  • MD5

    2ba73d2d47cf2d388446b781613b7eff

  • SHA1

    c75c7eb4814835388881d1b4c2db67e64a023e1e

  • SHA256

    06c6442d5bb110140ac1cdbcf1be52388441b9a0750d59b743acc6b52d19582b

  • SHA512

    667ddc16765d8c3c3596bb734174862db1f2ac24037c361a2e37ec9824c35a8926728400025d62c62c361b1b1e1a9d1e3b4c38c2c5989eee832e083481e50caa

  • SSDEEP

    3072:0O7Mn+0UNzRqN7GZDA62KrcNaQV/7T9kSjkltZJmHcPz6HEJE:kUGJeD8HVOSqBmHbk

Malware Config

Extracted

Family

emotet

Botnet

Epoch2

C2

74.219.172.26:80

134.209.36.254:8080

104.156.59.7:8080

120.138.30.150:8080

194.187.133.160:443

104.236.246.93:8080

74.208.45.104:8080

78.187.156.31:80

187.161.206.24:80

94.23.216.33:80

172.91.208.86:80

91.211.88.52:7080

50.91.114.38:80

200.123.150.89:443

121.124.124.40:7080

62.75.141.82:80

5.196.74.210:8080

24.137.76.62:80

85.105.205.77:8080

139.130.242.43:80

rsa_pubkey.plain

Signatures

  • Emotet

    Emotet is a trojan that is primarily spread through spam emails.

  • Emotet payload 5 IoCs

    Detects Emotet payload in memory.

  • Executes dropped EXE 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 24 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\task1.exe
    "C:\Users\Admin\AppData\Local\Temp\task1.exe"
    1⤵
    • Drops file in System32 directory
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:680
    • C:\Windows\SysWOW64\dmcmnutils\tbs.exe
      "C:\Windows\SysWOW64\dmcmnutils\tbs.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2920
  • C:\Windows\System32\rundll32.exe
    C:\Windows\System32\rundll32.exe C:\Windows\System32\shell32.dll,SHCreateLocalServerRunDll {9aa46009-3ce0-458a-a354-715610a075e6} -Embedding
    1⤵
      PID:592
    • C:\Windows\explorer.exe
      "C:\Windows\explorer.exe" shell:::{52205fd8-5dfb-447d-801a-d0b52f2e83e1}
      1⤵
        PID:4744
      • C:\Windows\explorer.exe
        C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
        1⤵
        • Modifies registry class
        PID:1852

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Windows\SysWOW64\dmcmnutils\tbs.exe

        Filesize

        188KB

        MD5

        2ba73d2d47cf2d388446b781613b7eff

        SHA1

        c75c7eb4814835388881d1b4c2db67e64a023e1e

        SHA256

        06c6442d5bb110140ac1cdbcf1be52388441b9a0750d59b743acc6b52d19582b

        SHA512

        667ddc16765d8c3c3596bb734174862db1f2ac24037c361a2e37ec9824c35a8926728400025d62c62c361b1b1e1a9d1e3b4c38c2c5989eee832e083481e50caa

      • memory/680-0-0x00000000006E0000-0x00000000006F2000-memory.dmp

        Filesize

        72KB

      • memory/680-3-0x00000000005B0000-0x00000000005BF000-memory.dmp

        Filesize

        60KB

      • memory/680-5-0x00000000005C0000-0x00000000005D0000-memory.dmp

        Filesize

        64KB

      • memory/2920-9-0x0000000000A20000-0x0000000000A32000-memory.dmp

        Filesize

        72KB

      • memory/2920-13-0x0000000000A40000-0x0000000000A50000-memory.dmp

        Filesize

        64KB