neshta | 2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c

General

Target

2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
Size

202KB
MD5

af0a1ec77e72432f8bf74ecb21a384a8
SHA1

c0831ccc145a8c3e7a361faf9a573b9773ca5354
SHA256

2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c
SHA512

29ef37b7e7332eb7536f346c88a602bd71fae382914710886e85d496f33ad6466be0bc9b7a71b5215cd51a3cefdfea17592fe8bb5eadc103bc7c43ad676724ab

Score

10^/10

neshta netwire botnet persistence rat spyware stealer

Malware Config

Extracted

Family

netwire

C2

23.105.131.142:3368

Attributes

activex_autorun
false
activex_key
copy_executable
false
delete_original
false
host_id
HostId-%Rand%
install_path
keylogger_dir
%AppData%\Logs\
lock_executable
false
mutex
offline_keylogger
true
password
Love1234
registry_autorun
false
startup_name
use_mutex
false

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta

NetWire RAT payload 2 IoCs

rat

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\3582-490\2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe	netwire
C:\Users\Admin\AppData\Local\Temp\3582-490\2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe	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 1 IoCs

Processes:

2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

pid process

3796 2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

pid	process
3796	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

Processes:

2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

Drops file in Program Files directory 4 IoCs

Processes:

2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

Drops file in Windows directory 1 IoCs

Processes:

2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

description ioc process

File opened for modification C:\Windows\svchost.com 2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\svchost.com	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

Checks processor information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

MusNotifyIcon.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	MusNotifyIcon.exe
Key opened	\Registry\Machine\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MusNotifyIcon.exe

Modifies registry class 1 IoCs

Processes:

2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

description	pid	process	target process
PID 3720 wrote to memory of 3796	3720	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
PID 3720 wrote to memory of 3796	3720	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
PID 3720 wrote to memory of 3796	3720	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe	2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe

C:\Users\Admin\AppData\Local\Temp\2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
"C:\Users\Admin\AppData\Local\Temp\2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe"
1⤵
- Modifies system executable filetype association
- Checks computer location settings
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3720

C:\Users\Admin\AppData\Local\Temp\3582-490\2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe"
2⤵
- Executes dropped EXE
PID:3796

C:\Windows\system32\MusNotifyIcon.exe
%systemroot%\system32\MusNotifyIcon.exe NotifyTrayIcon 13
1⤵
- Checks processor information in registry
PID:3500

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

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

C:\Users\Admin\AppData\Local\Temp\3582-490\2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
MD5
555961790f886ccf3ca7e5cc0e5e272e

SHA1
ec83807bef3c759f0b5a54e417a2d1c236557fdc

SHA256
9e13d17fd5367f2168efd8c0c95773ba91509a3ae503242566c8f0a73c74285d

SHA512
079e6e3d6f63c209a01c3cc457745e973e1ec80224d7e41fef9069ce5566052d99b81328b1d77be5fee3cb99c0d8206cf4953acfbfa569e2ec87a826f2f0fff7

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\2a73e8f413acfcd05a38ac515320430dbb7c99aaa7d4fdf8ae3dd1f59050074c.exe
MD5
555961790f886ccf3ca7e5cc0e5e272e

SHA1
ec83807bef3c759f0b5a54e417a2d1c236557fdc

SHA256
9e13d17fd5367f2168efd8c0c95773ba91509a3ae503242566c8f0a73c74285d

SHA512
079e6e3d6f63c209a01c3cc457745e973e1ec80224d7e41fef9069ce5566052d99b81328b1d77be5fee3cb99c0d8206cf4953acfbfa569e2ec87a826f2f0fff7

Download Submit

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads