D1682AA725C47B89C2066CFEAA8B3B55.exe

General
Target

D1682AA725C47B89C2066CFEAA8B3B55.exe

Filesize

793KB

Completed

24-07-2021 00:06

Score
10 /10
MD5

d1682aa725c47b89c2066cfeaa8b3b55

SHA1

c802cfd2f442200bafaf6a5fbeb70f52ee846bb2

SHA256

c539c08e04ef8ab4ee18e69ab3346214ffcbfd262679c558f7b5ca651767d61d

Malware Config

Extracted

Family netwire
C2

nozomi.takanome.io:9030

hikari.takanome.io:9030

Attributes
activex_autorun
false
activex_key
copy_executable
false
delete_original
false
host_id
HostId-%Rand%
install_path
keylogger_dir
%AppData%\Syslog\
lock_executable
false
mutex
offline_keylogger
true
password
Jtenike70+
registry_autorun
false
startup_name
use_mutex
false
Signatures 10

Filter: none

Defense Evasion
Discovery
Persistence
  • Modifies WinLogon for persistence
    D1682AA725C47B89C2066CFEAA8B3B55.exe

    TTPs

    Winlogon Helper DLLModify Registry

    Reported IOCs

    descriptioniocprocess
    Set value (str)\REGISTRY\USER\S-1-5-21-2513283230-931923277-594887482-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\Microsoft\\Certificate.exe\","D1682AA725C47B89C2066CFEAA8B3B55.exe
  • NetWire RAT payload

    Tags

    Reported IOCs

    resourceyara_rule
    behavioral1/memory/756-75-0x0000000000400000-0x0000000000433000-memory.dmpnetwire
    behavioral1/memory/756-76-0x000000000040242D-mapping.dmpnetwire
    behavioral1/memory/756-79-0x0000000000400000-0x0000000000433000-memory.dmpnetwire
  • Netwire

    Description

    Netwire is a RAT with main functionalities focused password stealing and keylogging, but also includes remote control capabilities as well.

  • Executes dropped EXE
    aspnet_compiler.exeaspnet_compiler.exe

    Reported IOCs

    pidprocess
    1352aspnet_compiler.exe
    756aspnet_compiler.exe
  • Loads dropped DLL
    D1682AA725C47B89C2066CFEAA8B3B55.exe

    Reported IOCs

    pidprocess
    1748D1682AA725C47B89C2066CFEAA8B3B55.exe
    1748D1682AA725C47B89C2066CFEAA8B3B55.exe
  • Suspicious use of SetThreadContext
    D1682AA725C47B89C2066CFEAA8B3B55.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 1748 set thread context of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
  • Enumerates physical storage devices

    Description

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

    TTPs

    System Information Discovery
  • Suspicious behavior: EnumeratesProcesses
    D1682AA725C47B89C2066CFEAA8B3B55.exepowershell.exe

    Reported IOCs

    pidprocess
    1748D1682AA725C47B89C2066CFEAA8B3B55.exe
    1748D1682AA725C47B89C2066CFEAA8B3B55.exe
    1748D1682AA725C47B89C2066CFEAA8B3B55.exe
    1748D1682AA725C47B89C2066CFEAA8B3B55.exe
    1748D1682AA725C47B89C2066CFEAA8B3B55.exe
    1748D1682AA725C47B89C2066CFEAA8B3B55.exe
    1748D1682AA725C47B89C2066CFEAA8B3B55.exe
    1456powershell.exe
    1456powershell.exe
  • Suspicious use of AdjustPrivilegeToken
    D1682AA725C47B89C2066CFEAA8B3B55.exepowershell.exe

    Reported IOCs

    descriptionpidprocess
    Token: SeDebugPrivilege1748D1682AA725C47B89C2066CFEAA8B3B55.exe
    Token: SeDebugPrivilege1456powershell.exe
  • Suspicious use of WriteProcessMemory
    D1682AA725C47B89C2066CFEAA8B3B55.exeWScript.exe

    Reported IOCs

    descriptionpidprocesstarget process
    PID 1748 wrote to memory of 9681748D1682AA725C47B89C2066CFEAA8B3B55.exeWScript.exe
    PID 1748 wrote to memory of 9681748D1682AA725C47B89C2066CFEAA8B3B55.exeWScript.exe
    PID 1748 wrote to memory of 9681748D1682AA725C47B89C2066CFEAA8B3B55.exeWScript.exe
    PID 1748 wrote to memory of 9681748D1682AA725C47B89C2066CFEAA8B3B55.exeWScript.exe
    PID 1748 wrote to memory of 13521748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 13521748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 13521748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 13521748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 1748 wrote to memory of 7561748D1682AA725C47B89C2066CFEAA8B3B55.exeaspnet_compiler.exe
    PID 968 wrote to memory of 1456968WScript.exepowershell.exe
    PID 968 wrote to memory of 1456968WScript.exepowershell.exe
    PID 968 wrote to memory of 1456968WScript.exepowershell.exe
    PID 968 wrote to memory of 1456968WScript.exepowershell.exe
Processes 5
  • C:\Users\Admin\AppData\Local\Temp\D1682AA725C47B89C2066CFEAA8B3B55.exe
    "C:\Users\Admin\AppData\Local\Temp\D1682AA725C47B89C2066CFEAA8B3B55.exe"
    Modifies WinLogon for persistence
    Loads dropped DLL
    Suspicious use of SetThreadContext
    Suspicious behavior: EnumeratesProcesses
    Suspicious use of AdjustPrivilegeToken
    Suspicious use of WriteProcessMemory
    PID:1748
    • C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\_Mmqcqapzpcejexxuxqnpv.vbs"
      Suspicious use of WriteProcessMemory
      PID:968
      • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Set-MpPreference -ExclusionPath C:\,'C:\Users\Admin\AppData\Roaming\Microsoft\Certificate.exe'
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        PID:1456
    • C:\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe
      C:\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe
      Executes dropped EXE
      PID:1352
    • C:\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe
      C:\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe
      Executes dropped EXE
      PID:756
Network
MITRE ATT&CK Matrix
Collection
    Command and Control
      Credential Access
        Defense Evasion
        Execution
          Exfiltration
            Impact
              Initial Access
                Lateral Movement
                  Persistence
                  Privilege Escalation
                    Replay Monitor
                    00:00 00:00
                    Downloads
                    • C:\Users\Admin\AppData\Local\Temp\_Mmqcqapzpcejexxuxqnpv.vbs

                      MD5

                      4731312425ffc6b6741d95c7ebcd43a3

                      SHA1

                      6a6c9e8827a83ed686e84f193f973ddccde0e317

                      SHA256

                      888321ab0fde16b2849d4b8d6b57d69c4e3e645eabe3e286e7f5f36c56a8d3e2

                      SHA512

                      6390e7b920765f5d951970ef323ca26cb8190725b30551a34b5725c3aec70324172e5d769d692b821d5e6f8b82b1ec13dddab0860176a20e5c674fe8029ae279

                    • C:\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe

                      MD5

                      1e98e92a982af948ee18ee819a2d8ad1

                      SHA1

                      6cb0bd87815118351e5e32c50b434079dfba255c

                      SHA256

                      235d3f96a78ce2dad584e6eb1a25fc386b3ae5e332c4d3c56f03b0a4978be778

                      SHA512

                      6711de2e00462c49852cee03fd8ef720310c4ffa5b3a653c08f2913a6146974f28b8a3b3ff38b3097310852a5aa3b964b77945bcefef3856911eb9acd0e42c6f

                    • C:\Users\Admin\AppData\Local\Temp\aspnet_compiler.exe

                      MD5

                      1e98e92a982af948ee18ee819a2d8ad1

                      SHA1

                      6cb0bd87815118351e5e32c50b434079dfba255c

                      SHA256

                      235d3f96a78ce2dad584e6eb1a25fc386b3ae5e332c4d3c56f03b0a4978be778

                      SHA512

                      6711de2e00462c49852cee03fd8ef720310c4ffa5b3a653c08f2913a6146974f28b8a3b3ff38b3097310852a5aa3b964b77945bcefef3856911eb9acd0e42c6f

                    • \Users\Admin\AppData\Local\Temp\aspnet_compiler.exe

                      MD5

                      1e98e92a982af948ee18ee819a2d8ad1

                      SHA1

                      6cb0bd87815118351e5e32c50b434079dfba255c

                      SHA256

                      235d3f96a78ce2dad584e6eb1a25fc386b3ae5e332c4d3c56f03b0a4978be778

                      SHA512

                      6711de2e00462c49852cee03fd8ef720310c4ffa5b3a653c08f2913a6146974f28b8a3b3ff38b3097310852a5aa3b964b77945bcefef3856911eb9acd0e42c6f

                    • \Users\Admin\AppData\Local\Temp\aspnet_compiler.exe

                      MD5

                      1e98e92a982af948ee18ee819a2d8ad1

                      SHA1

                      6cb0bd87815118351e5e32c50b434079dfba255c

                      SHA256

                      235d3f96a78ce2dad584e6eb1a25fc386b3ae5e332c4d3c56f03b0a4978be778

                      SHA512

                      6711de2e00462c49852cee03fd8ef720310c4ffa5b3a653c08f2913a6146974f28b8a3b3ff38b3097310852a5aa3b964b77945bcefef3856911eb9acd0e42c6f

                    • memory/756-79-0x0000000000400000-0x0000000000433000-memory.dmp

                    • memory/756-75-0x0000000000400000-0x0000000000433000-memory.dmp

                    • memory/756-76-0x000000000040242D-mapping.dmp

                    • memory/968-69-0x0000000000000000-mapping.dmp

                    • memory/968-72-0x00000000757E1000-0x00000000757E3000-memory.dmp

                    • memory/1456-120-0x0000000006310000-0x0000000006311000-memory.dmp

                    • memory/1456-97-0x0000000006210000-0x0000000006211000-memory.dmp

                    • memory/1456-104-0x00000000061B0000-0x00000000061B1000-memory.dmp

                    • memory/1456-105-0x0000000005620000-0x0000000005621000-memory.dmp

                    • memory/1456-119-0x0000000006300000-0x0000000006301000-memory.dmp

                    • memory/1456-91-0x00000000056D0000-0x00000000056D1000-memory.dmp

                    • memory/1456-82-0x0000000002390000-0x0000000002391000-memory.dmp

                    • memory/1456-83-0x00000000048A0000-0x00000000048A1000-memory.dmp

                    • memory/1456-84-0x0000000002510000-0x0000000002511000-memory.dmp

                    • memory/1456-85-0x0000000005250000-0x0000000005251000-memory.dmp

                    • memory/1456-87-0x0000000004862000-0x0000000004863000-memory.dmp

                    • memory/1456-86-0x0000000004860000-0x0000000004861000-memory.dmp

                    • memory/1456-88-0x000000007EF30000-0x000000007EF31000-memory.dmp

                    • memory/1456-80-0x0000000000000000-mapping.dmp

                    • memory/1456-96-0x0000000005770000-0x0000000005771000-memory.dmp

                    • memory/1748-68-0x0000000006150000-0x00000000061BE000-memory.dmp

                    • memory/1748-63-0x00000000009E0000-0x0000000000A34000-memory.dmp

                    • memory/1748-62-0x0000000000A55000-0x0000000000A66000-memory.dmp

                    • memory/1748-61-0x0000000000A50000-0x0000000000A51000-memory.dmp

                    • memory/1748-59-0x0000000001300000-0x0000000001301000-memory.dmp