neshta | 888101d59c219dc57cf3bec1dec7f3880bfb2e6d966da604eb2485741d72f889

General

Target

SOA.exe
Size

1.9MB
MD5

081ccbaad04fe1298a6cd6b04c63fd14
SHA1

87a31f4f90543f69f37fdcf7d0a4d8d5ca99de08
SHA256

888101d59c219dc57cf3bec1dec7f3880bfb2e6d966da604eb2485741d72f889
SHA512

e66b75dd580a3c60b418477e5e960b3893b12882981d4df71515262e0ea5c3062230d9d597c0b866c241a670961d124b5fa5f9052e20514b22642bcb9a7688b3

Score

10^/10

neshta persistence spyware

Malware Config

Signatures

Detect Neshta payload 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/640-143-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/640-144-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/640-145-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/640-146-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/640-148-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

InstallUtil.exe

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

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

SOA.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation SOA.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation	SOA.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

SOA.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Rdxymb = "\"C:\\Users\\Admin\\AppData\\Roaming\\Zifieqouw\\Rdxymb.exe\""	SOA.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

SOA.exe

description pid process target process

PID 4156 set thread context of 640 4156 SOA.exe InstallUtil.exe

description	pid	process	target process
PID 4156 set thread context of 640	4156	SOA.exe	InstallUtil.exe

Drops file in Program Files directory 64 IoCs

Processes:

InstallUtil.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~3.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpshare.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GO664E~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MIA062~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MID1AD~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~4.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MI9C33~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\COOKIE~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~2.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\setup_wm.exe	InstallUtil.exe

Drops file in Windows directory 1 IoCs

Processes:

InstallUtil.exe

description ioc process

File opened for modification C:\Windows\svchost.com InstallUtil.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	InstallUtil.exe

Modifies registry class 1 IoCs

Processes:

InstallUtil.exe

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

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exeSOA.exe

pid process

756 powershell.exe
756 powershell.exe
4156 SOA.exe
4156 SOA.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

SOA.exepowershell.exe

description pid process

Token: SeDebugPrivilege 4156 SOA.exe
Token: SeDebugPrivilege 756 powershell.exe

pid	process
756	powershell.exe
756	powershell.exe
4156	SOA.exe
4156	SOA.exe

description	pid	process
Token: SeDebugPrivilege	4156	SOA.exe
Token: SeDebugPrivilege	756	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

SOA.exe

description	pid	process	target process
PID 4156 wrote to memory of 756	4156	SOA.exe	powershell.exe
PID 4156 wrote to memory of 756	4156	SOA.exe	powershell.exe
PID 4156 wrote to memory of 756	4156	SOA.exe	powershell.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe
PID 4156 wrote to memory of 640	4156	SOA.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\SOA.exe
"C:\Users\Admin\AppData\Local\Temp\SOA.exe"
1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4156

C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANgA=
2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:756

C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
2⤵
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
PID:640

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\ZIFIEQ~1\Rdxymb.exe
Filesize
1.9MB

MD5
f04716ca599d60c1b8bb293f8c2d097b

SHA1
e574a29cc8e00a8c33697d524cc30a0a048b00bf

SHA256
5c6346c9d9690aa61cf08f380c880d1e9df46b1ae7f357c3bbd9e057b02feaed

SHA512
9797f58318d3af58af83e15c01f7215afac800607c24926f5956f526724105166b930fb35c2aff4923cb970ad87f4085b2c70d4f1efd5155ac2729af73b663a4

Download Submit
memory/640-142-0x0000000000000000-mapping.dmp

Download
memory/640-148-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/640-146-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/640-145-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/640-144-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/640-143-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/756-134-0x0000000004F40000-0x0000000005568000-memory.dmp

Filesize
6.2MB

Download
memory/756-138-0x0000000007350000-0x00000000079CA000-memory.dmp

Filesize
6.5MB

Download
memory/756-139-0x0000000006230000-0x000000000624A000-memory.dmp

Filesize
104KB

Download
memory/756-137-0x0000000005D20000-0x0000000005D3E000-memory.dmp

Filesize
120KB

Download
memory/756-136-0x00000000056E0000-0x0000000005746000-memory.dmp

Filesize
408KB

Download
memory/756-135-0x0000000004E90000-0x0000000004EF6000-memory.dmp

Filesize
408KB

Download
memory/756-133-0x0000000002780000-0x00000000027B6000-memory.dmp

Filesize
216KB

Download
memory/756-132-0x0000000000000000-mapping.dmp

Download
memory/4156-140-0x000000000DC20000-0x000000000DCB2000-memory.dmp

Filesize
584KB

Download
memory/4156-141-0x000000000E270000-0x000000000E814000-memory.dmp

Filesize
5.6MB

Download
memory/4156-130-0x0000000000660000-0x000000000084E000-memory.dmp

Filesize
1.9MB

Download
memory/4156-131-0x0000000006250000-0x0000000006272000-memory.dmp

Filesize
136KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads