neshta | 91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595

General

Target

91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
Size

692KB
MD5

e9fc2113423e942ec3ceb11bee29d77f
SHA1

c7415258cf7ae76f01307181628553050663773d
SHA256

91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595
SHA512

eac3a5c07f576fc2c1beea029d740f16f1921a66b9d6c099798221bf996f5aeb01b583f81c12c89d2daa90b3f6ae83ecb7eb7b9b7bc4107a0b70713360bea1b7

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:

91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.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:

91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

pid process

828 91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

pid	process
828	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.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:

91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

Drops file in Program Files directory 14 IoCs

Processes:

91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

Drops file in Windows directory 1 IoCs

Processes:

91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

description ioc process

File opened for modification C:\Windows\svchost.com 91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.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

2276 828 WerFault.exe 91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

description	ioc	process
File opened for modification	C:\Windows\svchost.com	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

pid	pid_target	process	target process
2276	828	WerFault.exe	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

Modifies registry class 1 IoCs

Processes:

91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

description	pid	process	target process
PID 2984 wrote to memory of 828	2984	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
PID 2984 wrote to memory of 828	2984	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
PID 2984 wrote to memory of 828	2984	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe	91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe

C:\Users\Admin\AppData\Local\Temp\91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
"C:\Users\Admin\AppData\Local\Temp\91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.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:2984

C:\Users\Admin\AppData\Local\Temp\3582-490\91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe"
2⤵
- Executes dropped EXE
PID:828

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 828 -s 1076
3⤵
- Program crash
PID:2276

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 432 -p 828 -ip 828
1⤵
PID:1960

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

1

T1012

System Information Discovery

2

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3582-490\91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
Filesize
652KB

MD5
701e25f568e9631167db0fb82544e854

SHA1
cab2c0b83adbc613b76b01458d0407b063d8f7de

SHA256
2ed107ed07ec8caaf5487cef98bb562c586b85f7e235984844c706a407f6514f

SHA512
294d60e321978de730788bf0780036d74bc633cff9821e6b8f696b26a631a4a483d9abad6bc55eb7b51fd681d5d7eefb49c16921c899ad493343abdbadce49f7

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\91e5e1bc68881c9c166a8d9f73b2788b3c8ab10b58f450ffcb1950daf5d0a595.exe
Filesize
652KB

MD5
701e25f568e9631167db0fb82544e854

SHA1
cab2c0b83adbc613b76b01458d0407b063d8f7de

SHA256
2ed107ed07ec8caaf5487cef98bb562c586b85f7e235984844c706a407f6514f

SHA512
294d60e321978de730788bf0780036d74bc633cff9821e6b8f696b26a631a4a483d9abad6bc55eb7b51fd681d5d7eefb49c16921c899ad493343abdbadce49f7

Download Submit
memory/828-130-0x0000000000000000-mapping.dmp

Download
memory/828-133-0x0000000000D30000-0x0000000000DD8000-memory.dmp

Filesize
672KB

Download
memory/828-134-0x0000000005690000-0x000000000572C000-memory.dmp

Filesize
624KB

Download
memory/828-135-0x0000000005CE0000-0x0000000006284000-memory.dmp

Filesize
5.6MB

Download
memory/828-136-0x0000000005730000-0x00000000057C2000-memory.dmp

Filesize
584KB

Download
memory/828-137-0x0000000005650000-0x000000000565A000-memory.dmp

Filesize
40KB

Download
memory/828-138-0x0000000005920000-0x0000000005976000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads