neshta | a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7

General

Target

a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe
Size

205KB
MD5

667a7e3e0d7d443a3019b9d49c905161
SHA1

b990f98250c5ac88afa9e4647c229f8ae561b4f7
SHA256

a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7
SHA512

467d313e19d72bf339e2bd8db3eae8dd5d026986d7914a135ea37373778b7f77be6e592dc22d8ed37be75416ab63be5bb460d5d7831d78d2ff6fd4529c3dda5a
SSDEEP

3072:sr85CjClo932sLu7NDcBk6tt1uvpYzWAbs5:k9jClo9msLuBgvAmyAbC

Score

10^/10

neshta persistence spyware vmprotect

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.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:

a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

pid process

4936 a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

pid	process
4936	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

VMProtect packed file 4 IoCs

Detects executables packed with VMProtect commercial packer.

vmprotect

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\3582-490\a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe	vmprotect
behavioral2/memory/4936-136-0x0000000000400000-0x0000000000429000-memory.dmp	vmprotect
behavioral2/memory/4936-135-0x0000000000400000-0x0000000000429000-memory.dmp	vmprotect
C:\Users\Admin\AppData\Local\Temp\3582-490\a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe	vmprotect

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:

a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2971393436-602173351-1645505021-1000\Control Panel\International\Geo\Nation	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

Drops file in Windows directory 1 IoCs

Processes:

a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

description ioc process

File opened for modification C:\Windows\svchost.com a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.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	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

Modifies registry class 1 IoCs

Processes:

a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

description	pid	process	target process
PID 2636 wrote to memory of 4936	2636	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe
PID 2636 wrote to memory of 4936	2636	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe
PID 2636 wrote to memory of 4936	2636	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe	a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe

C:\Users\Admin\AppData\Local\Temp\a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe
"C:\Users\Admin\AppData\Local\Temp\a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe"
1⤵
- Modifies system executable filetype association
- Checks computer location settings
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2636

C:\Users\Admin\AppData\Local\Temp\3582-490\a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe"
2⤵
- Executes dropped EXE
PID:4936

Network

MITRE ATT&CK Matrix ATT&CK 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

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\3582-490\a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe
Filesize
165KB

MD5
4f88bef9204d347c0d1c99d7be7baae8

SHA1
f86c4ef16233c330d0d0a7a6644237856c96952f

SHA256
5dbd4ed8d49d8993855c592445b581441e63aa42fe8adca5bd6331ebc96b91a5

SHA512
a2c0dbf44fe0bac79a321cd7052cbab41357bd05986cbe17cc860d0499329f9d90ddf62fe6dd2e62fc54114ac10175bdcdd6455c968177ae814e4df4fa91e443

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\a11bd4f0f5773e8022d3e2e544644f410d4b49b8405f0631273583870a7ceeb7.exe
Filesize
165KB

MD5
4f88bef9204d347c0d1c99d7be7baae8

SHA1
f86c4ef16233c330d0d0a7a6644237856c96952f

SHA256
5dbd4ed8d49d8993855c592445b581441e63aa42fe8adca5bd6331ebc96b91a5

SHA512
a2c0dbf44fe0bac79a321cd7052cbab41357bd05986cbe17cc860d0499329f9d90ddf62fe6dd2e62fc54114ac10175bdcdd6455c968177ae814e4df4fa91e443

Download Submit
memory/4936-132-0x0000000000000000-mapping.dmp

Download
memory/4936-136-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download
memory/4936-135-0x0000000000400000-0x0000000000429000-memory.dmp

Filesize
164KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads