neshta | 0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746

General

Target

0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
Size

494KB
MD5

1db98644fc151d0ada247a88b58e60fe
SHA1

20446b70361e6adfba011f1087e0266ce0e5f0a6
SHA256

0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746
SHA512

c4b35bfd04320c4ce60cb1eb4605975774e38965ae43b439313b13b7c700b627d31383065c8762521a086b483de7bc4effab2f542095e2b2463c7aad6cf0c6dc

Score

10^/10

neshta persistence spyware

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
Executes dropped EXE 1 IoCs

Processes:

0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

pid process

2996 0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

pid	process
2996	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.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:

0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

Drops file in Program Files directory 14 IoCs

Processes:

0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

Drops file in Windows directory 1 IoCs

Processes:

0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

description ioc process

File opened for modification C:\Windows\svchost.com 0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1988 2996 WerFault.exe 0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

description	ioc	process
File opened for modification	C:\Windows\svchost.com	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

pid	pid_target	process	target process
1988	2996	WerFault.exe	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

Modifies registry class 1 IoCs

Processes:

0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

description	pid	process	target process
PID 2272 wrote to memory of 2996	2272	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
PID 2272 wrote to memory of 2996	2272	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
PID 2272 wrote to memory of 2996	2272	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe	0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe

C:\Users\Admin\AppData\Local\Temp\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
"C:\Users\Admin\AppData\Local\Temp\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.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:2272

C:\Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe"
2⤵
- Executes dropped EXE
PID:2996

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2996 -s 908
3⤵
- Program crash
PID:1988

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 204 -p 2996 -ip 2996
1⤵
PID:1832

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
Filesize
454KB

MD5
bb3dc88c9290298d290cbdd86fd8eff6

SHA1
409480dba5e506558e2fd369b6f97b23334f44a1

SHA256
a3d573543a0140a33d7500630e5ef7f6716e2a7814f1897dfc356a39e2385adc

SHA512
681aeeb32425b57e44d92a5f2f16a099a59d04269ff9e6e8f4ecef88e352f268ffa4be6efbcd30a39199551aef7ceaedb39e1be574d72d59535247fd3b843890

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\0b539df91ed6ae2322470cc15c91bc6b8d1629837c3e4fcf954070478b423746.exe
Filesize
454KB

MD5
bb3dc88c9290298d290cbdd86fd8eff6

SHA1
409480dba5e506558e2fd369b6f97b23334f44a1

SHA256
a3d573543a0140a33d7500630e5ef7f6716e2a7814f1897dfc356a39e2385adc

SHA512
681aeeb32425b57e44d92a5f2f16a099a59d04269ff9e6e8f4ecef88e352f268ffa4be6efbcd30a39199551aef7ceaedb39e1be574d72d59535247fd3b843890

Download Submit
memory/2996-130-0x0000000000000000-mapping.dmp

Download
memory/2996-133-0x0000000000040000-0x00000000000B8000-memory.dmp

Filesize
480KB

Download
memory/2996-134-0x0000000006FF0000-0x000000000708C000-memory.dmp

Filesize
624KB

Download
memory/2996-135-0x0000000007640000-0x0000000007BE4000-memory.dmp

Filesize
5.6MB

Download
memory/2996-136-0x0000000007130000-0x00000000071C2000-memory.dmp

Filesize
584KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads