neshta | 3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a

General

Target

3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
Size

1016KB
MD5

5b4682dcb13fbe12af347a551abf9dfd
SHA1

fca6d6caea766148f769d6e5035ac569a9bffab0
SHA256

3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a
SHA512

343d05b08ec2c5ab314fd159264ee7dcf937ffe568ba8cdbdd8cec1e8308c32f3e6680ba26c6b502cc4780adabe1aabab409756bb6157d05edc6cbc9b9413d63

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:

3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.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:

3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

pid process

5032 3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

pid	process
5032	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.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:

3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

Drops file in Program Files directory 14 IoCs

Processes:

3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

Drops file in Windows directory 1 IoCs

Processes:

3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

description ioc process

File opened for modification C:\Windows\svchost.com 3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.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

5088 5032 WerFault.exe 3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

description	ioc	process
File opened for modification	C:\Windows\svchost.com	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

pid	pid_target	process	target process
5088	5032	WerFault.exe	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

Modifies registry class 1 IoCs

Processes:

3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

description	pid	process	target process
PID 1188 wrote to memory of 5032	1188	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
PID 1188 wrote to memory of 5032	1188	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe	3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe

C:\Users\Admin\AppData\Local\Temp\3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
"C:\Users\Admin\AppData\Local\Temp\3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.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:1188

C:\Users\Admin\AppData\Local\Temp\3582-490\3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe"
2⤵
- Executes dropped EXE
PID:5032

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 5032 -s 736
3⤵
- Program crash
PID:5088

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 412 -p 5032 -ip 5032
1⤵
PID:5112

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\3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
Filesize
975KB

MD5
1fe56729bd507afeea3c17d560ab2013

SHA1
3f245e5780fada233466d4dc8d0e889b57178767

SHA256
6e663738e33707cdde75f331bf6a5fc30417395b52ec753ec6ccac4c90a64cc8

SHA512
7dc4673c4492e8a9fbee659fba8c74503bb635c37403892abd8ce45d87752f064fb9e7ef92578281c4d8ad5d2f78527d65ad5eefcfd0a644ac634e30080ff5b7

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\3582103c86f58e88f8b599bf38d7171e0c92235b2f589619ddec3b6d225c332a.exe
Filesize
975KB

MD5
1fe56729bd507afeea3c17d560ab2013

SHA1
3f245e5780fada233466d4dc8d0e889b57178767

SHA256
6e663738e33707cdde75f331bf6a5fc30417395b52ec753ec6ccac4c90a64cc8

SHA512
7dc4673c4492e8a9fbee659fba8c74503bb635c37403892abd8ce45d87752f064fb9e7ef92578281c4d8ad5d2f78527d65ad5eefcfd0a644ac634e30080ff5b7

Download Submit
memory/5032-133-0x0000000000980000-0x0000000000A78000-memory.dmp

Filesize
992KB

Download
memory/5032-130-0x0000000000000000-mapping.dmp

Download
memory/5032-134-0x00007FFABACC0000-0x00007FFABB781000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads