neshta | 3c33d10e5a6aaa86c69f0740de2ac08bb92aa3d715454b94438d217098bb1ad1

Analysis

max time kernel
0s
max time network
118s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
30/12/2023, 05:00

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General

Target

0f6181ddbcd053e6b7f391abbcdc27c5.exe
Size

233KB
MD5

0f6181ddbcd053e6b7f391abbcdc27c5
SHA1

5aae26bc5792ff2015251552c5fbf0a77dce1dca
SHA256

3c33d10e5a6aaa86c69f0740de2ac08bb92aa3d715454b94438d217098bb1ad1
SHA512

a0d935ffc87eb5d4a708995d11c9cb141c8783a9e619479e991d67182326694e065f364d62584e8c51a459c52756bda44c874297d6203cc54ac8f851c91818da
SSDEEP

3072:sr85C1d96HM0XU+aDe5UEjmIlmijI7rUGimM+M4MCimr4O7OAGBuHvsesf3nW:k9bn+aC1meyUGimM+wCimFOAzA3W

Score

10^/10

neshta bootkit persistence spyware

Malware Config

Signatures

Detect Neshta payload 1 IoCs

resource	yara_rule
behavioral1/memory/2248-94-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta

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

pid	Process
2460	0f6181ddbcd053e6b7f391abbcdc27c5.exe

Loads dropped DLL 2 IoCs

pid	Process
2248	0f6181ddbcd053e6b7f391abbcdc27c5.exe
2248	0f6181ddbcd053e6b7f391abbcdc27c5.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	0f6181ddbcd053e6b7f391abbcdc27c5.exe

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	0f6181ddbcd053e6b7f391abbcdc27c5.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	0f6181ddbcd053e6b7f391abbcdc27c5.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	0f6181ddbcd053e6b7f391abbcdc27c5.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2248 wrote to memory of 2460	2248	0f6181ddbcd053e6b7f391abbcdc27c5.exe	17
PID 2248 wrote to memory of 2460	2248	0f6181ddbcd053e6b7f391abbcdc27c5.exe	17
PID 2248 wrote to memory of 2460	2248	0f6181ddbcd053e6b7f391abbcdc27c5.exe	17
PID 2248 wrote to memory of 2460	2248	0f6181ddbcd053e6b7f391abbcdc27c5.exe	17

C:\Users\Admin\AppData\Local\Temp\0f6181ddbcd053e6b7f391abbcdc27c5.exe
"C:\Users\Admin\AppData\Local\Temp\0f6181ddbcd053e6b7f391abbcdc27c5.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2248
- C:\Users\Admin\AppData\Local\Temp\3582-490\0f6181ddbcd053e6b7f391abbcdc27c5.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\0f6181ddbcd053e6b7f391abbcdc27c5.exe"
  2⤵
  - Executes dropped EXE
  - Writes to the Master Boot Record (MBR)
  PID:2460

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2248-10-0x0000000002B10000-0x0000000002B88000-memory.dmp

Filesize
480KB

Download
memory/2248-13-0x0000000002B10000-0x0000000002B88000-memory.dmp

Filesize
480KB

Download
memory/2248-94-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2460-16-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download
memory/2460-17-0x0000000000510000-0x0000000000512000-memory.dmp

Filesize
8KB

Download
memory/2460-44-0x00000000006D0000-0x00000000006D1000-memory.dmp

Filesize
4KB

Download
memory/2460-42-0x0000000000500000-0x0000000000501000-memory.dmp

Filesize
4KB

Download
memory/2460-41-0x0000000000400000-0x0000000000478000-memory.dmp

Filesize
480KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads