neshta | 25cee8b16fcb5a0213ca91a560254e6358fea4dbaab4d5c8b0f1a03a96141076

General

Target

Notification-Â 705643291.exe
Size

17KB
MD5

2e24157b68f94fef3119baadb3617a92
SHA1

e23dffba35aa387d09d1521e4f0911e97a8282b2
SHA256

25cee8b16fcb5a0213ca91a560254e6358fea4dbaab4d5c8b0f1a03a96141076
SHA512

8d30e04690400af37e6911f0257a6f942254bf4ca10a06dde5954412b94ab7efcd017ce4b7aa8531d63832e762a4780a0e442782e955dfc7ad33e8961e476259

Score

10^/10

neshta persistence spyware

Malware Config

Signatures

Detect Neshta payload 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/3224-143-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3224-144-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3224-145-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3224-146-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3224-147-0x0000000000400000-0x000000000041B000-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:

Notification-Â 705643291.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\Control Panel\International\Geo\Nation	Notification-Â 705643291.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Notification-Â 705643291.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-2372564722-193526734-2636556182-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Exjfj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Sdfwbjjt\\Exjfj.exe\""	Notification-Â 705643291.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Notification-Â 705643291.exe

description pid process target process

PID 3268 set thread context of 3224 3268 Notification-Â 705643291.exe InstallUtil.exe

description	pid	process	target process
PID 3268 set thread context of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe

Drops file in Program Files directory 64 IoCs

Processes:

InstallUtil.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.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\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\BHO\IE_TO_~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~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\MIA062~1.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\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~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\EDGEUP~1\13147~1.37\MICROS~3.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\Adobe\ACROBA~1\Reader\ACROTE~1.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\Google\Update\DISABL~1.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\Temp\EU39.tmp\MICROS~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\plug_ins\PI_BRO~1\64BITM~1.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~3\PACKAG~1\{4D8DC~1\VC_RED~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\Google\Update\1336~1.71\GO664E~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.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\WINDOW~4\setup_wm.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\MICROS~1\EDGEUP~1\13147~1.37\MICROS~2.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13163~1.19\MICROS~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.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\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\MICROS~1\Temp\EU39.tmp\MICROS~3.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Temp\EU39.tmp\MIA062~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.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\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~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\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.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\MICROS~1\Edge\APPLIC~1\msedge.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpshare.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~3\PACKAG~1\{61087~1\VCREDI~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\Google\Update\1336~1.71\GOOGLE~4.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\Temp\EU39.tmp\MID1AD~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.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\COMMON~1\Java\JAVAUP~1\jaureg.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.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.exeNotification-Â 705643291.exe

pid process

2028 powershell.exe
2028 powershell.exe
3268 Notification-Â 705643291.exe
3268 Notification-Â 705643291.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Notification-Â 705643291.exepowershell.exe

description pid process

Token: SeDebugPrivilege 3268 Notification-Â 705643291.exe
Token: SeDebugPrivilege 2028 powershell.exe

pid	process
2028	powershell.exe
2028	powershell.exe
3268	Notification-Â 705643291.exe
3268	Notification-Â 705643291.exe

description	pid	process
Token: SeDebugPrivilege	3268	Notification-Â 705643291.exe
Token: SeDebugPrivilege	2028	powershell.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

Notification-Â 705643291.exe

description	pid	process	target process
PID 3268 wrote to memory of 2028	3268	Notification-Â 705643291.exe	powershell.exe
PID 3268 wrote to memory of 2028	3268	Notification-Â 705643291.exe	powershell.exe
PID 3268 wrote to memory of 2028	3268	Notification-Â 705643291.exe	powershell.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe
PID 3268 wrote to memory of 3224	3268	Notification-Â 705643291.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Notification-Â 705643291.exe
"C:\Users\Admin\AppData\Local\Temp\Notification-Â 705643291.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:3268
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANwA=
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2028
- 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:3224

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

Replay Monitor

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Downloads

memory/2028-138-0x0000000007B80000-0x00000000081FA000-memory.dmp

Filesize
6.5MB

Download
memory/2028-132-0x0000000000000000-mapping.dmp

Download
memory/2028-139-0x00000000067F0000-0x000000000680A000-memory.dmp

Filesize
104KB

Download
memory/2028-133-0x0000000002D10000-0x0000000002D46000-memory.dmp

Filesize
216KB

Download
memory/2028-134-0x00000000053C0000-0x00000000059E8000-memory.dmp

Filesize
6.2MB

Download
memory/2028-135-0x0000000005C00000-0x0000000005C66000-memory.dmp

Filesize
408KB

Download
memory/2028-136-0x0000000005CE0000-0x0000000005D46000-memory.dmp

Filesize
408KB

Download
memory/2028-137-0x00000000062F0000-0x000000000630E000-memory.dmp

Filesize
120KB

Download
memory/3224-147-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3224-142-0x0000000000000000-mapping.dmp

Download
memory/3224-143-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3224-144-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3224-145-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3224-146-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3268-131-0x000000000D030000-0x000000000D052000-memory.dmp

Filesize
136KB

Download
memory/3268-140-0x000000000D770000-0x000000000D802000-memory.dmp

Filesize
584KB

Download
memory/3268-141-0x000000000E2C0000-0x000000000E864000-memory.dmp

Filesize
5.6MB

Download
memory/3268-130-0x00000000002B0000-0x00000000002BA000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads