neshta | 6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d

General

Target

6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe
Size

374KB
MD5

3b447099ca280dabd22d36f84ebfd3bb
SHA1

49fd831a738b21ee0a1b3b62cd15801abe8c32d5
SHA256

6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d
SHA512

e5868ab37bf39245a8bf8cc0db65276c4f11f8183db1451ff08766735cd8bdfbf4977001e376b7f2cad7de05ecb2706baa819c7d8f5fdf1bbd4ec76c824857ac

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:

6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.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:

6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe

pid process

2248 6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe
Sets service image path in registry 2 TTPs
persistence

Registry Run Keys / Startup Folder
T1060

Modify Registry
T1112

pid	process
2248	6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.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:

6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-790714498-1549421491-1643397139-1000\Control Panel\International\Geo\Nation	6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe

Drops file in Windows directory 1 IoCs

Processes:

6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe

description ioc process

File opened for modification C:\Windows\svchost.com 6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.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	6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe

Modifies data under HKEY_USERS 41 IoCs

Processes:

WaaSMedicAgent.exe

description	ioc	process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\WinTrust\Trust Providers\Software Publishing	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\SmartCardRoot\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Root\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\TrustedPeople\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\CA	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\trust\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\CA\Certificates	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\SystemCertificates\Disallowed\CTLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\TrustedPeople\CRLs	WaaSMedicAgent.exe
Key created	\REGISTRY\USER\.DEFAULT\Software\Policies\Microsoft\SystemCertificates\trust\CTLs	WaaSMedicAgent.exe

Modifies registry class 1 IoCs

Processes:

6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe

description	pid	process	target process
PID 3820 wrote to memory of 2248	3820	6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe	6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe
PID 3820 wrote to memory of 2248	3820	6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe	6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe

C:\Users\Admin\AppData\Local\Temp\6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe
"C:\Users\Admin\AppData\Local\Temp\6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe"
1⤵
- Modifies system executable filetype association
- Checks computer location settings
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:3820

C:\Users\Admin\AppData\Local\Temp\3582-490\6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe"
2⤵
- Executes dropped EXE
PID:2248

C:\Windows\System32\WaaSMedicAgent.exe
C:\Windows\System32\WaaSMedicAgent.exe b085eb3bfb217bc961344d07aa345c1d J6v8hJj9zU2k/m5PH3DSew.0.1.0.0.0
1⤵
- Modifies data under HKEY_USERS
PID:1996

Network

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

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\6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe
MD5
a92669ec8852230a10256ac23bbf4489

SHA1
4bed038c66e7fdbbfb0365669923a73fbc9bb8f4

SHA256
16f413862efda3aba631d8a7ae2bfff6d84acd9f454a7adaa518c7a8a6f375a5

SHA512
86b2795a428799b1024c84cdb76eda787ade15d6895113a6e2c8db1635574fc48d5dbbe17b127f8bcc1ea092c19d9e215cefc8985c18a0fb0910e4548eb544ed

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\6a511d4178d6d2f98f8af34311d0e15dc8dc1c4b643e6943f056da6ce242e70d.exe
MD5
a92669ec8852230a10256ac23bbf4489

SHA1
4bed038c66e7fdbbfb0365669923a73fbc9bb8f4

SHA256
16f413862efda3aba631d8a7ae2bfff6d84acd9f454a7adaa518c7a8a6f375a5

SHA512
86b2795a428799b1024c84cdb76eda787ade15d6895113a6e2c8db1635574fc48d5dbbe17b127f8bcc1ea092c19d9e215cefc8985c18a0fb0910e4548eb544ed

Download Submit

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads