netwire | b536b2e629251420a9cd824acd7e955540258c78ae7a14b10a787caee251dd40

General

Target

b536b2e629251420a9cd824acd7e955540258c78ae7a14b10a787caee251dd40.exe
Size

523KB
MD5

ff050a24b54251f10bbe17f6890856d7
SHA1

31edaa2a4f2774f172ec9fd928e2e5277cfeaa04
SHA256

b536b2e629251420a9cd824acd7e955540258c78ae7a14b10a787caee251dd40
SHA512

ebf331b397b4eb643b8aad509b433d41e37dc31f3b4050eddc5c4b003b65b2c04538a280c6fee3d227bed13007aac23b88265fdbb6b8f348b044dc09d41d1e3f

Score

10^/10

netwire botnet evasion rat stealer

Malware Config

Signatures

NetWire RAT payload 3 IoCs

rat

Processes:

resource	yara_rule
behavioral1/memory/4260-119-0x0000000000400000-0x000000000041F000-memory.dmp	netwire
behavioral1/memory/4260-120-0x00000000004021DA-mapping.dmp	netwire
behavioral1/memory/4260-121-0x0000000000400000-0x000000000041F000-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
Looks for VirtualBox Guest Additions in registry 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497
Looks for VMWare Tools registry key 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

installutil.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	installutil.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	installutil.exe

Maps connected drives based on registry 3 TTPs 2 IoCs

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

Query Registry

T1012

Peripheral Device Discovery

T1120

System Information Discovery

T1082

Processes:

installutil.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum	installutil.exe
Key value queried	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Disk\Enum\0	installutil.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

installutil.exe

description pid process target process

PID 5076 set thread context of 4260 5076 installutil.exe installutil.exe

description	pid	process	target process
PID 5076 set thread context of 4260	5076	installutil.exe	installutil.exe

Drops file in Windows directory 2 IoCs

Processes:

installutil.exe

description	ioc	process
File created	C:\Windows\Microsoft.NET\Framework\v2.0.50727\.Identifier	installutil.exe
File opened for modification	C:\Windows\Microsoft.NET\Framework\v2.0.50727\.Identifier	installutil.exe

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

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

4204 schtasks.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

installutil.exe

pid process

5076 installutil.exe
5076 installutil.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

installutil.exe

description pid process

Token: SeDebugPrivilege 5076 installutil.exe

pid	process
4204	schtasks.exe

pid	process
5076	installutil.exe
5076	installutil.exe

description	pid	process
Token: SeDebugPrivilege	5076	installutil.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

b536b2e629251420a9cd824acd7e955540258c78ae7a14b10a787caee251dd40.exeinstallutil.exe

description	pid	process	target process
PID 4440 wrote to memory of 5076	4440	b536b2e629251420a9cd824acd7e955540258c78ae7a14b10a787caee251dd40.exe	installutil.exe
PID 4440 wrote to memory of 5076	4440	b536b2e629251420a9cd824acd7e955540258c78ae7a14b10a787caee251dd40.exe	installutil.exe
PID 4440 wrote to memory of 5076	4440	b536b2e629251420a9cd824acd7e955540258c78ae7a14b10a787caee251dd40.exe	installutil.exe
PID 5076 wrote to memory of 4204	5076	installutil.exe	schtasks.exe
PID 5076 wrote to memory of 4204	5076	installutil.exe	schtasks.exe
PID 5076 wrote to memory of 4204	5076	installutil.exe	schtasks.exe
PID 5076 wrote to memory of 4260	5076	installutil.exe	installutil.exe
PID 5076 wrote to memory of 4260	5076	installutil.exe	installutil.exe
PID 5076 wrote to memory of 4260	5076	installutil.exe	installutil.exe
PID 5076 wrote to memory of 4260	5076	installutil.exe	installutil.exe
PID 5076 wrote to memory of 4260	5076	installutil.exe	installutil.exe
PID 5076 wrote to memory of 4260	5076	installutil.exe	installutil.exe
PID 5076 wrote to memory of 4260	5076	installutil.exe	installutil.exe
PID 5076 wrote to memory of 4260	5076	installutil.exe	installutil.exe

C:\Users\Admin\AppData\Local\Temp\b536b2e629251420a9cd824acd7e955540258c78ae7a14b10a787caee251dd40.exe
"C:\Users\Admin\AppData\Local\Temp\b536b2e629251420a9cd824acd7e955540258c78ae7a14b10a787caee251dd40.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4440

C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe" /logtoconsole=false /logfile= /u "C:\Users\Admin\AppData\Local\Temp\b536b2e629251420a9cd824acd7e955540258c78ae7a14b10a787caee251dd40.exe"
2⤵
- Checks BIOS information in registry
- Maps connected drives based on registry
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5076

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\KlrDZKeUs" /XML "C:\Users\Admin\AppData\Local\Temp\tmpA87A.tmp"
3⤵
- Creates scheduled task(s)
PID:4204

C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe
"C:\Windows\Microsoft.NET\Framework\v2.0.50727\installutil.exe"
3⤵
- Drops file in Windows directory
PID:4260

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Scheduled Task

1

T1053

Persistence

Scheduled Task

1

T1053

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Discovery

Query Registry

4

T1012

Virtualization/Sandbox Evasion

2

T1497

System Information Discovery

3

T1082

Peripheral Device Discovery

1

T1120

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmpA87A.tmp
MD5
ca5c95448ed53ff17568bb87d88409cf

SHA1
2b5363ab1daaa710c5264884da88473338e7ea4c

SHA256
69e3c4db4b91c6d986007b092d4f5ca04f566a24a11bb6c192c7aa75e2ddbd46

SHA512
4daf3d1703a9d5e4d06bb3315e479f6d400067fcff7cac5df8b83741bc76a48402f2365c7523d5c1b05732a2b863f3bd4ebc7b4973c0fc95b779b41cffa00a1c

Download Submit
memory/4204-117-0x0000000000000000-mapping.dmp

Download
memory/4260-119-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4260-120-0x00000000004021DA-mapping.dmp

Download
memory/4260-121-0x0000000000400000-0x000000000041F000-memory.dmp

Filesize
124KB

Download
memory/4440-114-0x0000000000960000-0x0000000000961000-memory.dmp

Filesize
4KB

Download
memory/5076-115-0x0000000000000000-mapping.dmp

Download
memory/5076-116-0x0000000002E90000-0x0000000002E91000-memory.dmp

Filesize
4KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads