netwire | 48d5f8ef5449387f721907a96a8eab0f7827f393db4c96d351bab43de7944d95

General

Target

7b0c5b6d2b384472a66a91446e3871a6.exe
Size

111KB
MD5

7b0c5b6d2b384472a66a91446e3871a6
SHA1

43f7d3727ff16afed19acd8a152c13b72b789d5f
SHA256

48d5f8ef5449387f721907a96a8eab0f7827f393db4c96d351bab43de7944d95
SHA512

214b1ec30417fd5c009f7cace9855d2bff2417099d6b863fbc014bc57a0e041b100a7585dd719af0d3398474b860f05d75d7b8fc3f979b2a8eada2d1b362e501
SSDEEP

768:iH059SCyqm4AxvqFTTT5jTTTT+lYeAcoMNii6LKtMwZ5JkQ0sKoIQr0/FLyTsMa7:807SCxCQTTT5jTTTT+rzVb00fLZDQ

Score

10^/10

netwire purecrypter botnet downloader loader persistence rat stealer

Malware Config

Extracted

Family

purecrypter

C2

https://firebasestorage.googleapis.com/v0/b/hjop-9ee35.appspot.com/o/Xuwbqh.dat?alt=media&token=f8835a49-5488-429f-8453-0ec2ff1d135e

Extracted

Family

netwire

C2

netwire2021.duckdns.org:7929

Attributes

activex_autorun
false
copy_executable
false
delete_original
false
host_id
HostId-%Rand%
keylogger_dir
%AppData%\Logs\
lock_executable
false
mutex
qFlJFfII
offline_keylogger
true
password
Password
registry_autorun
false
use_mutex
true

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

7b0c5b6d2b384472a66a91446e3871a6.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,\"C:\\Users\\Admin\\AppData\\Roaming\\rttyr.exe\","	7b0c5b6d2b384472a66a91446e3871a6.exe

NetWire RAT payload 7 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/1972-73-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/1972-75-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/1972-74-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/1972-77-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/1972-72-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/1972-79-0x0000000000400000-0x0000000000433000-memory.dmp	netwire
behavioral1/memory/1972-80-0x0000000000400000-0x0000000000433000-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
PureCrypter
PureCrypter is a .NET malware loader first seen in early 2021.
loader downloader purecrypter
Suspicious use of SetThreadContext 1 IoCs

Processes:

7b0c5b6d2b384472a66a91446e3871a6.exe

description pid process target process

PID 1148 set thread context of 1972 1148 7b0c5b6d2b384472a66a91446e3871a6.exe 7b0c5b6d2b384472a66a91446e3871a6.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

powershell.exe

pid process

1484 powershell.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

7b0c5b6d2b384472a66a91446e3871a6.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1148 7b0c5b6d2b384472a66a91446e3871a6.exe
Token: SeDebugPrivilege 1484 powershell.exe
Suspicious use of FindShellTrayWindow 1 IoCs

Processes:

DllHost.exe

pid process

1356 DllHost.exe

description	pid	process	target process
PID 1148 set thread context of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe

pid	process
1484	powershell.exe

description	pid	process
Token: SeDebugPrivilege	1148	7b0c5b6d2b384472a66a91446e3871a6.exe
Token: SeDebugPrivilege	1484	powershell.exe

pid	process
1356	DllHost.exe

Suspicious use of WriteProcessMemory 16 IoCs

Processes:

7b0c5b6d2b384472a66a91446e3871a6.exe

C:\Users\Admin\AppData\Local\Temp\7b0c5b6d2b384472a66a91446e3871a6.exe
"C:\Users\Admin\AppData\Local\Temp\7b0c5b6d2b384472a66a91446e3871a6.exe"
1⤵
- Modifies WinLogon for persistence
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1148

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMwAwAA==
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1484

C:\Users\Admin\AppData\Local\Temp\7b0c5b6d2b384472a66a91446e3871a6.exe
C:\Users\Admin\AppData\Local\Temp\7b0c5b6d2b384472a66a91446e3871a6.exe
2⤵
PID:1972

C:\Windows\SysWOW64\DllHost.exe
C:\Windows\SysWOW64\DllHost.exe /Processid:{76D0CB12-7604-4048-B83C-1005C7DDC503}
1⤵
- Suspicious use of FindShellTrayWindow
PID:1356

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

1

T1004

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\Vshuffmzutgmofdlthunderbird-square.ico
Filesize
54KB

MD5
64e0d3e737a61bd7f0abb6128dc005a7

SHA1
0d874db8fff6b065a7235c739e6fa37a0d3ddb6d

SHA256
98f2a3481d416099a2bb02bb26a967fb6ed77dbedf490a8f9d8bcba500e79b7d

SHA512
ef898917e72aa768f0a63672a7459da57a462ab3822400adbf722987f08d8ec89d7a8ef7368cd02badac8095e19a65f70b931b2e2c41e92686fb37393826d408

Download Submit
memory/1148-55-0x0000000004DB0000-0x0000000004DF0000-memory.dmp

Filesize
256KB

Download
memory/1148-56-0x0000000007CF0000-0x0000000007DAA000-memory.dmp

Filesize
744KB

Download
memory/1148-57-0x0000000000930000-0x0000000000954000-memory.dmp

Filesize
144KB

Download
memory/1148-61-0x0000000004DB0000-0x0000000004DF0000-memory.dmp

Filesize
256KB

Download
memory/1148-64-0x0000000004690000-0x0000000004692000-memory.dmp

Filesize
8KB

Download
memory/1148-54-0x0000000000960000-0x0000000000980000-memory.dmp

Filesize
128KB

Download
memory/1356-81-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/1356-65-0x00000000000F0000-0x00000000000F2000-memory.dmp

Filesize
8KB

Download
memory/1356-66-0x0000000000300000-0x0000000000301000-memory.dmp

Filesize
4KB

Download
memory/1484-60-0x00000000023B0000-0x00000000023F0000-memory.dmp

Filesize
256KB

Download
memory/1972-71-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1972-75-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1972-76-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1972-74-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1972-77-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1972-72-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1972-70-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1972-69-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1972-79-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1972-80-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download
memory/1972-73-0x0000000000400000-0x0000000000433000-memory.dmp

Filesize
204KB

Download

description	pid	process	target process
PID 1148 wrote to memory of 1484	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	powershell.exe
PID 1148 wrote to memory of 1484	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	powershell.exe
PID 1148 wrote to memory of 1484	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	powershell.exe
PID 1148 wrote to memory of 1484	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	powershell.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe
PID 1148 wrote to memory of 1972	1148	7b0c5b6d2b384472a66a91446e3871a6.exe	7b0c5b6d2b384472a66a91446e3871a6.exe

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads