neshta | 28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b

General

Target

28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe
Size

138KB
MD5

3f51592020f74b0499ecab9fb22597b2
SHA1

66f8785648287bc5235903ac0cb73c808735adb2
SHA256

28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b
SHA512

82fadff70d5c7ac3be70fb7536863315fd650deea92056dec7b57fc531aa7dfeec1369807bbabd8a8687f21c4845da37ccb600a8a2783309fd46788abe78f31b

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:

28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.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:

28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

pid process

5020 28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

pid	process
5020	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.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:

28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

Drops file in Program Files directory 3 IoCs

Processes:

28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

Drops file in Windows directory 1 IoCs

Processes:

28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

description ioc process

File opened for modification C:\Windows\svchost.com 28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.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	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

Modifies registry class 1 IoCs

Processes:

28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

description	pid	process	target process
PID 3136 wrote to memory of 5020	3136	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe
PID 3136 wrote to memory of 5020	3136	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe
PID 3136 wrote to memory of 5020	3136	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe	28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe

C:\Users\Admin\AppData\Local\Temp\28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe
"C:\Users\Admin\AppData\Local\Temp\28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.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:3136

C:\Users\Admin\AppData\Local\Temp\3582-490\28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe"
2⤵
- Executes dropped EXE
PID:5020

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\28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe
Filesize
97KB

MD5
3da8b5ecb3bd42b68d4155641e7bb46a

SHA1
83a053a433d412d6499a454675c8908973e369eb

SHA256
4225957ea9cda27274b20b2390bc4108acf590b3295d7d99fb68730b4617783a

SHA512
9bf6bb4209f3d9c4e7363585c3f2881f0048fd5c48decd40b99fe25739c3f3be6e3c9b16faaf660c69f11f1156702b0191512f382fdd108f1a37003bc369ed7d

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\28d2db5be24d6b1ba8721646d1b0370e5f0660122283cd2dbcb0faf760940b2b.exe
Filesize
97KB

MD5
3da8b5ecb3bd42b68d4155641e7bb46a

SHA1
83a053a433d412d6499a454675c8908973e369eb

SHA256
4225957ea9cda27274b20b2390bc4108acf590b3295d7d99fb68730b4617783a

SHA512
9bf6bb4209f3d9c4e7363585c3f2881f0048fd5c48decd40b99fe25739c3f3be6e3c9b16faaf660c69f11f1156702b0191512f382fdd108f1a37003bc369ed7d

Download Submit
memory/5020-130-0x0000000000000000-mapping.dmp

Download
memory/5020-133-0x00000000008C0000-0x00000000008DE000-memory.dmp

Filesize
120KB

Download
memory/5020-134-0x0000000005230000-0x00000000052CC000-memory.dmp

Filesize
624KB

Download
memory/5020-135-0x0000000005880000-0x0000000005E24000-memory.dmp

Filesize
5.6MB

Download
memory/5020-136-0x0000000005370000-0x0000000005402000-memory.dmp

Filesize
584KB

Download
memory/5020-138-0x0000000005810000-0x0000000005866000-memory.dmp

Filesize
344KB

Download
memory/5020-137-0x0000000005540000-0x000000000554A000-memory.dmp

Filesize
40KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads