neshta | 2863d59554f71daaca458ebf5f9d290771630f3945b54bef7a5cdc91ed963b6e

Analysis

max time kernel
69s
max time network
144s
platform
windows10-1703_x64
resource
win10-20220718-en
resource tags

arch:x64arch:x86image:win10-20220718-enlocale:en-usos:windows10-1703-x64system
submitted
26-07-2022 21:27

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General

Target

WndowsHealthSecurityUpdate.exe
Size

856KB
MD5

5ac3d3497a4f79a3117c4e5b9db33ed1
SHA1

c158c51009630fbfe942a4e37a791e4cb841dadf
SHA256

2863d59554f71daaca458ebf5f9d290771630f3945b54bef7a5cdc91ed963b6e
SHA512

7be6ace465afbfc08e9a18b9bd8e75f14cc5e359e061748830ab4a29cc5816e3c73fbfa6baee440e7ee73887c4f3200f37a07564318e30bbbab4d452adc2edfa

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2332-181-0x0000000000400000-0x000000000042B000-memory.dmp	family_neshta
behavioral2/memory/2332-182-0x00000000004080E4-mapping.dmp	family_neshta
behavioral2/memory/2332-218-0x0000000000400000-0x000000000042B000-memory.dmp	family_neshta
behavioral2/memory/2332-231-0x0000000000400000-0x000000000042B000-memory.dmp	family_neshta
behavioral2/memory/2332-234-0x0000000000400000-0x000000000042B000-memory.dmp	family_neshta

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

WndowsHealthSecurityUpdate.exe

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

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
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
T1081
Suspicious use of SetThreadContext 1 IoCs

Processes:

WndowsHealthSecurityUpdate.exe

description pid process target process

PID 2656 set thread context of 2332 2656 WndowsHealthSecurityUpdate.exe WndowsHealthSecurityUpdate.exe

description	pid	process	target process
PID 2656 set thread context of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe

Drops file in Program Files directory 55 IoCs

Processes:

WndowsHealthSecurityUpdate.exe

description	ioc	process
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\WinMail.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ACCESS~1\wordpad.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GO664E~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	WndowsHealthSecurityUpdate.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	WndowsHealthSecurityUpdate.exe

Drops file in Windows directory 1 IoCs

Processes:

WndowsHealthSecurityUpdate.exe

description ioc process

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

Modifies registry class 1 IoCs

Processes:

WndowsHealthSecurityUpdate.exe

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

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

WndowsHealthSecurityUpdate.exe

description	pid	process	target process
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe
PID 2656 wrote to memory of 2332	2656	WndowsHealthSecurityUpdate.exe	WndowsHealthSecurityUpdate.exe

C:\Users\Admin\AppData\Local\Temp\WndowsHealthSecurityUpdate.exe
"C:\Users\Admin\AppData\Local\Temp\WndowsHealthSecurityUpdate.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2656
- C:\Users\Admin\AppData\Local\Temp\WndowsHealthSecurityUpdate.exe
  "{path}"
  2⤵
  - Modifies system executable filetype association
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Modifies registry class
  PID:2332

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2332-181-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2332-182-0x00000000004080E4-mapping.dmp

Download
memory/2332-183-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2332-184-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2332-186-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2332-234-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2332-231-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2332-218-0x0000000000400000-0x000000000042B000-memory.dmp

Filesize
172KB

Download
memory/2656-147-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-130-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-119-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-120-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-121-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-122-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-124-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-123-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-125-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-126-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-127-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-128-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-129-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-149-0x00000000059A0000-0x0000000005E9E000-memory.dmp

Filesize
5.0MB

Download
memory/2656-131-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-132-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-133-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-134-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-135-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-136-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-137-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-138-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-139-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-140-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-151-0x00000000053D0000-0x0000000005462000-memory.dmp

Filesize
584KB

Download
memory/2656-142-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-143-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-144-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-145-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-146-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-117-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-148-0x0000000000AD0000-0x0000000000BAC000-memory.dmp

Filesize
880KB

Download
memory/2656-157-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-118-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-141-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-152-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-153-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-154-0x0000000005540000-0x00000000055DC000-memory.dmp

Filesize
624KB

Download
memory/2656-155-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-156-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-150-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-158-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-159-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-160-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-161-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-162-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-163-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-164-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-165-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-166-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-167-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-168-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-169-0x00000000053C0000-0x00000000053CA000-memory.dmp

Filesize
40KB

Download
memory/2656-170-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-171-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-172-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-173-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-174-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-175-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-176-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-177-0x00000000056D0000-0x00000000056DA000-memory.dmp

Filesize
40KB

Download
memory/2656-178-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-179-0x00000000085F0000-0x0000000008682000-memory.dmp

Filesize
584KB

Download
memory/2656-180-0x0000000008680000-0x00000000086D4000-memory.dmp

Filesize
336KB

Download
memory/2656-185-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-115-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-116-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download
memory/2656-114-0x00000000774F0000-0x000000007767E000-memory.dmp

Filesize
1.6MB

Download