neshta | 0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a

General

Target

0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe
Size

366KB
MD5

ce31749f411db7b975a8e3cff83cb13d
SHA1

aa5939c532601bbe3df41b53ea8ca2b0e04b877e
SHA256

0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a
SHA512

c35f65d728cac16cf99ca1d3980f47e6499adbf9fd5c010783148c01878d5b255f11bc764bd6fd3ebead87c2442d4c3db1bdb2ef35cb3de7c495d61d563257c9
SSDEEP

6144:k9QTGTHKwI5QAf5YP8JUl6tjrZUmrtEQ/aGNc4mc6uqHoSJgf/:TGTo5QK5YUJL1UJLGNycHOoSJgf/

Score

10^/10

neshta persistence spyware upx

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.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:

0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

pid process

1748 0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

pid	process
1748	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\3582-490\0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe	upx
C:\Users\Admin\AppData\Local\Temp\3582-490\0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe	upx
behavioral2/memory/1748-135-0x0000000000400000-0x00000000004CA000-memory.dmp	upx
behavioral2/memory/1748-136-0x0000000000400000-0x00000000004CA000-memory.dmp	upx

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:

0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

Drops file in Windows directory 1 IoCs

Processes:

0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

description ioc process

File opened for modification C:\Windows\svchost.com 0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.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	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

Modifies registry class 1 IoCs

Processes:

0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

description	pid	process	target process
PID 4964 wrote to memory of 1748	4964	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe
PID 4964 wrote to memory of 1748	4964	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe
PID 4964 wrote to memory of 1748	4964	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe	0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe

C:\Users\Admin\AppData\Local\Temp\0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe
"C:\Users\Admin\AppData\Local\Temp\0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe"
1⤵
- Modifies system executable filetype association
- Checks computer location settings
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4964

C:\Users\Admin\AppData\Local\Temp\3582-490\0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe"
2⤵
- Executes dropped EXE
PID:1748

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\0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe
Filesize
325KB

MD5
5af78bb7c871d1515312291e76892859

SHA1
220bd148c3a0f34f0e4e98b6d37c6ca5e64f649a

SHA256
8f32d27cd7b63e5cf85da5a925d8be50aeaeefc381a35163b64fac41eb6e94a5

SHA512
6b78a509e3a1a9e64e05a7c9b2ac9d73e1d50bf2e75e26de9406c5433c25ed11f23622adec625c6b1756671157ebc43184b0598a8318fb14c0fab1b52b17d9e6

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\0b3fc872b4e07fb8557c91f63be4546244b0b5ad03b79b678f90211c88aac50a.exe
Filesize
325KB

MD5
5af78bb7c871d1515312291e76892859

SHA1
220bd148c3a0f34f0e4e98b6d37c6ca5e64f649a

SHA256
8f32d27cd7b63e5cf85da5a925d8be50aeaeefc381a35163b64fac41eb6e94a5

SHA512
6b78a509e3a1a9e64e05a7c9b2ac9d73e1d50bf2e75e26de9406c5433c25ed11f23622adec625c6b1756671157ebc43184b0598a8318fb14c0fab1b52b17d9e6

Download Submit
memory/1748-132-0x0000000000000000-mapping.dmp

Download
memory/1748-135-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download
memory/1748-136-0x0000000000400000-0x00000000004CA000-memory.dmp

Filesize
808KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads