neshta | 002627ee9699b28cedc585da9a1bec3421da624eadcfc42bbb7f64471c8c770a

General

Target

Pre Alert Notice.exe
Size

2.1MB
MD5

66ec236f7e3706529af4c68b2d557507
SHA1

507f6c2309ed1bf9ccaf6f3cd9d77c9047732e0f
SHA256

002627ee9699b28cedc585da9a1bec3421da624eadcfc42bbb7f64471c8c770a
SHA512

e1b6155c4edd32d9109597c588a00052bcba3106cce377e7cc9ad2427463f658912ea87c278e75efe9dac56f6b3e2e9e2469795469cf9ce5c9ab626f23ee31a5

Score

10^/10

neshta persistence spyware

Malware Config

Signatures

Detect Neshta payload 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1684-70-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1684-71-0x00000000004080E4-mapping.dmp	family_neshta
behavioral1/memory/1684-72-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1684-74-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1684-76-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1684-79-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1684-80-0x0000000000400000-0x000000000041B000-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
Loads dropped DLL 2 IoCs

Processes:

InstallUtil.exe

pid process

1684 InstallUtil.exe
1684 InstallUtil.exe

pid	process
1684	InstallUtil.exe
1684	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

Pre Alert Notice.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Windows\CurrentVersion\Run\Exjfj = "\"C:\\Users\\Admin\\AppData\\Roaming\\Sdfwbjjt\\Exjfj.exe\""	Pre Alert Notice.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

Pre Alert Notice.exe

description pid process target process

PID 2024 set thread context of 1684 2024 Pre Alert Notice.exe InstallUtil.exe

description	pid	process	target process
PID 2024 set thread context of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe

Drops file in Program Files directory 64 IoCs

Processes:

InstallUtil.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.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\INTERN~1\iexplore.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.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\{CA675~1\VCREDI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.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\Office14\MSOUC.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.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~3\PACKAG~1\{61087~1\VCREDI~1.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\Google\Update\1336~1.71\GOF5E2~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.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\MICROS~1\Office14\GROOVEMN.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.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\MICROS~1\Office14\MSTORE.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.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\DISABL~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.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\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.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 2 IoCs

Processes:

powershell.exePre Alert Notice.exe

pid process

1372 powershell.exe
2024 Pre Alert Notice.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

Pre Alert Notice.exepowershell.exe

description pid process

Token: SeDebugPrivilege 2024 Pre Alert Notice.exe
Token: SeDebugPrivilege 1372 powershell.exe

pid	process
1372	powershell.exe
2024	Pre Alert Notice.exe

description	pid	process
Token: SeDebugPrivilege	2024	Pre Alert Notice.exe
Token: SeDebugPrivilege	1372	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

Pre Alert Notice.exe

description	pid	process	target process
PID 2024 wrote to memory of 1372	2024	Pre Alert Notice.exe	powershell.exe
PID 2024 wrote to memory of 1372	2024	Pre Alert Notice.exe	powershell.exe
PID 2024 wrote to memory of 1372	2024	Pre Alert Notice.exe	powershell.exe
PID 2024 wrote to memory of 1372	2024	Pre Alert Notice.exe	powershell.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe
PID 2024 wrote to memory of 1684	2024	Pre Alert Notice.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\Pre Alert Notice.exe
"C:\Users\Admin\AppData\Local\Temp\Pre Alert Notice.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2024

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:1372

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
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
PID:1684

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

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Roaming\Sdfwbjjt\Exjfj.exe
Filesize
2.1MB

MD5
66ec236f7e3706529af4c68b2d557507

SHA1
507f6c2309ed1bf9ccaf6f3cd9d77c9047732e0f

SHA256
002627ee9699b28cedc585da9a1bec3421da624eadcfc42bbb7f64471c8c770a

SHA512
e1b6155c4edd32d9109597c588a00052bcba3106cce377e7cc9ad2427463f658912ea87c278e75efe9dac56f6b3e2e9e2469795469cf9ce5c9ab626f23ee31a5

Download Submit
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
\Users\Admin\AppData\Roaming\Sdfwbjjt\Exjfj.exe
Filesize
2.1MB

MD5
66ec236f7e3706529af4c68b2d557507

SHA1
507f6c2309ed1bf9ccaf6f3cd9d77c9047732e0f

SHA256
002627ee9699b28cedc585da9a1bec3421da624eadcfc42bbb7f64471c8c770a

SHA512
e1b6155c4edd32d9109597c588a00052bcba3106cce377e7cc9ad2427463f658912ea87c278e75efe9dac56f6b3e2e9e2469795469cf9ce5c9ab626f23ee31a5

Download Submit
memory/1372-57-0x0000000000000000-mapping.dmp

Download
memory/1372-59-0x000000006F130000-0x000000006F6DB000-memory.dmp

Filesize
5.7MB

Download
memory/1372-60-0x000000006F130000-0x000000006F6DB000-memory.dmp

Filesize
5.7MB

Download
memory/1684-68-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-72-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-64-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-65-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-80-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-67-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-66-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-70-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-71-0x00000000004080E4-mapping.dmp

Download
memory/1684-62-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-74-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-61-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-76-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1684-79-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2024-55-0x0000000004D10000-0x0000000004F30000-memory.dmp

Filesize
2.1MB

Download
memory/2024-56-0x0000000074E11000-0x0000000074E13000-memory.dmp

Filesize
8KB

Download
memory/2024-54-0x0000000000A00000-0x0000000000C24000-memory.dmp

Filesize
2.1MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads