neshta | b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1

General

Target

b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
Size

802KB
MD5

0a0f18968171592d780c37040b0cc8f7
SHA1

b3ac11608c14718a2dda2e473404ad3be148381c
SHA256

b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1
SHA512

d26b9c704da351a78009636792653a57d3fa763a6fdb99c61d04ff66b9ce340cb39ee1dc795270dccf786e3a9a6df725eea4437bb673f622faa192f87f34bc06

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:

b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.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:

b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

pid process

1976 b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

pid	process
1976	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.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:

b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

Drops file in Program Files directory 14 IoCs

Processes:

b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

Drops file in Windows directory 1 IoCs

Processes:

b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

description ioc process

File opened for modification C:\Windows\svchost.com b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.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

4804 1976 WerFault.exe b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

description	ioc	process
File opened for modification	C:\Windows\svchost.com	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

pid	pid_target	process	target process
4804	1976	WerFault.exe	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

Modifies registry class 1 IoCs

Processes:

b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

description	pid	process	target process
PID 2692 wrote to memory of 1976	2692	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
PID 2692 wrote to memory of 1976	2692	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe	b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe

C:\Users\Admin\AppData\Local\Temp\b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
"C:\Users\Admin\AppData\Local\Temp\b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.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:2692

C:\Users\Admin\AppData\Local\Temp\3582-490\b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe"
2⤵
- Executes dropped EXE
PID:1976

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 1976 -s 804
3⤵
- Program crash
PID:4804

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 432 -p 1976 -ip 1976
1⤵
PID:3188

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\3582-490\b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
Filesize
762KB

MD5
88cfb214afe57fc40a580f62d6a0e11b

SHA1
3f1be26a5846781fc3226330454ff558a7cbdd93

SHA256
e78ffec8206e64a0d608381b03a06bdf648971c2cb514bec2ea818969e3fd4f1

SHA512
8a33e7328a692bc3ad210f3b3264b1d48df908d27fe82bfbe68179fea52ac304bc47c13410748a2561f9ae45c4dba853788b230f34a18ec14fafe591feb98393

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\b9cf68589937f874c1b247cacec8f6e5ea21ed9f7a91f262a19c9fd1323f99b1.exe
Filesize
762KB

MD5
88cfb214afe57fc40a580f62d6a0e11b

SHA1
3f1be26a5846781fc3226330454ff558a7cbdd93

SHA256
e78ffec8206e64a0d608381b03a06bdf648971c2cb514bec2ea818969e3fd4f1

SHA512
8a33e7328a692bc3ad210f3b3264b1d48df908d27fe82bfbe68179fea52ac304bc47c13410748a2561f9ae45c4dba853788b230f34a18ec14fafe591feb98393

Download Submit
memory/1976-130-0x0000000000000000-mapping.dmp

Download
memory/1976-133-0x0000000000600000-0x00000000006C4000-memory.dmp

Filesize
784KB

Download
memory/1976-134-0x00007FFECCC70000-0x00007FFECD731000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads