neshta | 7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8

General

Target

7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe
Size

337KB
MD5

568be84c39c75c4a28ee54a13ceefdf0
SHA1

f6ba126a47da320de1a4c132c4e84fffbd68b73f
SHA256

7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8
SHA512

18937b8913c4919152b4d4ecf2d6dfaf1a6cca88a488786bba0f68c84a0f13786b5a9e3e101c9414181194ad281a6b3056f617f66c5117f94cd720765cd9a741

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:

7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.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:

7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

pid process

728 7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

pid	process
728	7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.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:

7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2632097139-1792035885-811742494-1000\Control Panel\International\Geo\Nation	7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

Drops file in Windows directory 1 IoCs

Processes:

7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

description ioc process

File opened for modification C:\Windows\svchost.com 7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.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

852 728 WerFault.exe 7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

description	ioc	process
File opened for modification	C:\Windows\svchost.com	7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

pid	pid_target	process	target process
852	728	WerFault.exe	7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

Modifies registry class 1 IoCs

Processes:

7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

Suspicious use of WriteProcessMemory 2 IoCs

Processes:

7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

description	pid	process	target process
PID 5004 wrote to memory of 728	5004	7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe	7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe
PID 5004 wrote to memory of 728	5004	7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe	7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

C:\Users\Admin\AppData\Local\Temp\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe
"C:\Users\Admin\AppData\Local\Temp\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe"
1⤵
- Modifies system executable filetype association
- Checks computer location settings
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:5004

C:\Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe"
2⤵
- Executes dropped EXE
PID:728

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -u -p 728 -s 796
3⤵
- Program crash
PID:852

C:\Windows\system32\WerFault.exe
C:\Windows\system32\WerFault.exe -pss -s 404 -p 728 -ip 728
1⤵
PID:5092

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\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

Filesize
296KB

MD5
a4e003f658d6fa9f98384a61798361fa

SHA1
79ab5e9674d770ebe0c83d50ce2a9e0bead5f448

SHA256
14b67ef494f13acee87b465b33e66c343f4edd3cd3f58475c28bd8d92eaca7ad

SHA512
2b95d09b3f00f0669fb1d41976319ba65074b9148d067563ae07cb9c4cc4b55107a5c574bd0d5304df9ebbafe8b4950f7c337be7a663ed17caa8f90dfaf7e65c

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\7efacbe1a24614c4a4ce802480ec09ad9b806df334f6c52a37e07cbea1571fd8.exe

Filesize
296KB

MD5
a4e003f658d6fa9f98384a61798361fa

SHA1
79ab5e9674d770ebe0c83d50ce2a9e0bead5f448

SHA256
14b67ef494f13acee87b465b33e66c343f4edd3cd3f58475c28bd8d92eaca7ad

SHA512
2b95d09b3f00f0669fb1d41976319ba65074b9148d067563ae07cb9c4cc4b55107a5c574bd0d5304df9ebbafe8b4950f7c337be7a663ed17caa8f90dfaf7e65c

Download Submit
memory/728-133-0x000001D1E6BA0000-0x000001D1E6BEE000-memory.dmp

Filesize
312KB

Download
memory/728-130-0x0000000000000000-mapping.dmp

Download
memory/728-134-0x00007FFABACC0000-0x00007FFABB781000-memory.dmp

Filesize
10.8MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads