netwire | 77256dbd8c0a417df262ad441056cc29c4ee5a70a9005b2fa4f32efbec768083

Analysis

max time kernel
119s
max time network
128s
platform
windows7_x64
resource
win7-en-20211014
submitted
03/11/2021, 10:17

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target
3wLErjZm74CL9UB.exe
Size 599KB
Sample211103-mbdejsafhl
SHA256 77256dbd8c0a417df262ad441056cc29c4ee5a70a9005b2fa4f32efbec768083
MD5 e3cdf4e912503638d5b738447cf025ea
SHA1 b4eeda6860e62ff4cb48184d1312df126a40aee8
SHA512 4b60f8e0aced27a0a5670a26ba44e29a57a2ea9e9cea603760ea166443ec056f38a782a051e678afc4e5c07c76cd2c110edda87368378d7e21872164d77b6133
MD5 SHA1 SHA512

Score

10^/10

netwire botnet persistence rat stealer

Malware Config

Extracted

Family

netwire

23.105.131.227:3360

Attributes

activex_autorun
false
activex_key
copy_executable
true
delete_original
false
host_id
HostId-%Rand%
install_path
%AppData%\Install\Host.exe
keylogger_dir
lock_executable
false
mutex
offline_keylogger
false
password
Password
registry_autorun
true
startup_name
NetWire
use_mutex
false

Signatures

NetWire RAT payload 9 IoCs

rat

resource	yara_rule
behavioral1/memory/380-64-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/380-65-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/380-66-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/380-67-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/380-68-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/380-69-0x000000000040242D-mapping.dmp	netwire
behavioral1/memory/380-78-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/2036-91-0x000000000040242D-mapping.dmp	netwire
behavioral1/memory/2036-94-0x0000000000400000-0x0000000000433000-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

Executes dropped EXE 3 IoCs

pid	Process
360	Host.exe
1608	Host.exe
2036	Host.exe

Loads dropped DLL 1 IoCs

pid	Process
380	3wLErjZm74CL9UB.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\	Host.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2955169046-2371869340-1800780948-1000\Software\Microsoft\Windows\CurrentVersion\Run\NetWire = "C:\\Users\\Admin\\AppData\\Roaming\\Install\\Host.exe"	Host.exe

Suspicious use of SetThreadContext 2 IoCs

description	pid	Process	procid_target
PID 940 set thread context of 380	940	3wLErjZm74CL9UB.exe	30
PID 360 set thread context of 2036	360	Host.exe	35

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

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
1640	schtasks.exe
1552	schtasks.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
360	Host.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	360	Host.exe

Suspicious use of WriteProcessMemory 40 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 1640	940	3wLErjZm74CL9UB.exe	28
PID 940 wrote to memory of 1640	940	3wLErjZm74CL9UB.exe	28
PID 940 wrote to memory of 1640	940	3wLErjZm74CL9UB.exe	28
PID 940 wrote to memory of 1640	940	3wLErjZm74CL9UB.exe	28
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 940 wrote to memory of 380	940	3wLErjZm74CL9UB.exe	30
PID 380 wrote to memory of 360	380	3wLErjZm74CL9UB.exe	31
PID 380 wrote to memory of 360	380	3wLErjZm74CL9UB.exe	31
PID 380 wrote to memory of 360	380	3wLErjZm74CL9UB.exe	31
PID 380 wrote to memory of 360	380	3wLErjZm74CL9UB.exe	31
PID 360 wrote to memory of 1552	360	Host.exe	32
PID 360 wrote to memory of 1552	360	Host.exe	32
PID 360 wrote to memory of 1552	360	Host.exe	32
PID 360 wrote to memory of 1552	360	Host.exe	32
PID 360 wrote to memory of 1608	360	Host.exe	33
PID 360 wrote to memory of 1608	360	Host.exe	33
PID 360 wrote to memory of 1608	360	Host.exe	33
PID 360 wrote to memory of 1608	360	Host.exe	33
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35
PID 360 wrote to memory of 2036	360	Host.exe	35

C:\Users\Admin\AppData\Local\Temp\3wLErjZm74CL9UB.exe
"C:\Users\Admin\AppData\Local\Temp\3wLErjZm74CL9UB.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:940
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LkgkUFcmpajn" /XML "C:\Users\Admin\AppData\Local\Temp\tmpAADF.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:1640
- C:\Users\Admin\AppData\Local\Temp\3wLErjZm74CL9UB.exe
  "C:\Users\Admin\AppData\Local\Temp\3wLErjZm74CL9UB.exe"
  2⤵
  - Loads dropped DLL
  - Suspicious use of WriteProcessMemory
  PID:380
- - C:\Users\Admin\AppData\Roaming\Install\Host.exe
    "C:\Users\Admin\AppData\Roaming\Install\Host.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:360
  - - C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LkgkUFcmpajn" /XML "C:\Users\Admin\AppData\Local\Temp\tmp844D.tmp"
      4⤵
      Creates scheduled task(s)
      PID:1552
  - - C:\Users\Admin\AppData\Roaming\Install\Host.exe
      "C:\Users\Admin\AppData\Roaming\Install\Host.exe"
      4⤵
      Executes dropped EXE
      PID:1608
  - - C:\Users\Admin\AppData\Roaming\Install\Host.exe
      "C:\Users\Admin\AppData\Roaming\Install\Host.exe"
      4⤵
      Executes dropped EXE
      Adds Run key to start application
      PID:2036

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/360-79-0x0000000000670000-0x0000000000671000-memory.dmp

Download

memory/360-75-0x0000000000030000-0x0000000000031000-memory.dmp

Download

memory/380-62-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/380-78-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/380-66-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/380-67-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/380-68-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/380-70-0x0000000074A31000-0x0000000074A33000-memory.dmp

Download

memory/380-63-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/380-64-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/380-65-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/380-61-0x0000000000400000-0x0000000000433000-memory.dmp

Download

memory/940-55-0x00000000000C0000-0x00000000000C1000-memory.dmp

Download

memory/940-59-0x00000000050D0000-0x000000000511C000-memory.dmp

Download

memory/940-58-0x0000000000640000-0x0000000000647000-memory.dmp

Download

memory/940-57-0x0000000004D70000-0x0000000004D71000-memory.dmp

Download

memory/2036-94-0x0000000000400000-0x0000000000433000-memory.dmp

Download