neshta | 0dc0c7008345a2e24a5db520b0b3c8ea64feadeb7306bab846b91000a0fa650b

Analysis

max time kernel
149s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
12-03-2024 17:38

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General

Target

file.exe
Size

2.6MB
MD5

2694402a15bf74cb83e092b8423092a2
SHA1

34da23de12e08166c024d81e8f633ff89f6a3405
SHA256

0dc0c7008345a2e24a5db520b0b3c8ea64feadeb7306bab846b91000a0fa650b
SHA512

d10293c89a132df344917d9b38a6107a7b6b731ee2da9b444704124ff0a824e9cf544bcdc9b4bad6f464650ac7860a7c9a7bc4d48fe94f061587552d2f5859a6
SSDEEP

49152:i53QoQ/1HPZVpvkUFokbF1OSyYWcWvv5vYaf1409GkMVz:iw/pZVpJF9p1OSyncUvpYCA9

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta

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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-275798769-4264537674-1142822080-1000\Control Panel\International\Geo\Nation	RegAsm.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\" %*"	RegAsm.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 896 set thread context of 1584	896	file.exe	91

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\COOKIE~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.17\MI9C33~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\java.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{FB050~1\WINDOW~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\MicrosoftEdgeUpdate.exe	RegAsm.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	RegAsm.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{17316~1\WINDOW~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13185~1.17\MICROS~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	RegAsm.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.17\MICROS~2.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaw.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.17\MICROS~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.17\MICROS~4.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.17\MICROS~3.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	RegAsm.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	RegAsm.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	RegAsm.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\" %*"	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1584	RegAsm.exe
1584	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	896	file.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91
PID 896 wrote to memory of 1584	896	file.exe	91

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:896
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks computer location settings
  - Modifies system executable filetype association
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:1584

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

Filesize
1.1MB

MD5
e2582adee1d9cb9ed5350341dbb0be5a

SHA1
b5449f74da6f23c8015a061929624e081a57e615

SHA256
4143552b95909631721ef1ceda3da7e1aa3b324987a8362ae4df4b18e141b4fc

SHA512
23aef9abdb7c68dc9002077b7ea5016dd592106d8da6c8fd17c8ffe163319ec3382e70f0ff9903d468b6642fe50ef817a0dec5be834b3bf28a837edbd9bdacbc

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

Filesize
40KB

MD5
424949598c72f543d9be6fcac6d7e3c0

SHA1
ec9ee8bf66f4c444450c1ca53ff99244c144eb98

SHA256
69184b93095c90b7afdc834b3b2d04229a60e3573409e323de740da6634756d7

SHA512
dd9fa8568e76e6bf779866bcf0cbc89b195631ef655eb4897ae6e3c0943cee5f2d00af8454446bda5127bfdb18743f37983516c522ac9a2be1307da39d6ad0b9

Download Submit
memory/896-1-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/896-2-0x00000000032C0000-0x00000000032D0000-memory.dmp

Filesize
64KB

Download
memory/896-124-0x0000000003310000-0x0000000005310000-memory.dmp

Filesize
32.0MB

Download
memory/896-0-0x0000000000AE0000-0x0000000000D8A000-memory.dmp

Filesize
2.7MB

Download
memory/896-12-0x0000000003310000-0x0000000005310000-memory.dmp

Filesize
32.0MB

Download
memory/896-11-0x0000000074F70000-0x0000000075720000-memory.dmp

Filesize
7.7MB

Download
memory/1584-13-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/1584-20-0x0000000000E80000-0x0000000000E81000-memory.dmp

Filesize
4KB

Download
memory/1584-18-0x0000000000E70000-0x0000000000E71000-memory.dmp

Filesize
4KB

Download
memory/1584-21-0x0000000000EB0000-0x0000000000EB1000-memory.dmp

Filesize
4KB

Download
memory/1584-24-0x0000000002A80000-0x0000000002A81000-memory.dmp

Filesize
4KB

Download
memory/1584-23-0x0000000000ED0000-0x0000000000ED1000-memory.dmp

Filesize
4KB

Download
memory/1584-22-0x0000000000EC0000-0x0000000000EC1000-memory.dmp

Filesize
4KB

Download
memory/1584-19-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/1584-8-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/1584-5-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/1584-125-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/1584-126-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/1584-128-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download