neshta | 42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107 | Triage

Analysis

max time kernel
147s
max time network
123s
platform
windows10_x64
resource
win10v20210408
submitted
08-10-2021 17:07

Sharing

Report Analysis Logs

General

Target

42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
Size

1009KB
MD5

13a1c548abf86e0c908fdeca6fb315fe
SHA1

c2988a93906cffd63704990194eb9b3ba556a209
SHA256

42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107
SHA512

db1b2013853fcad8c54337af2cb42f1c54a0b73cf438475e58d799a0623808686ca5100f275de8d90d3169747e0ed3ee132bca720c0e04eea565c33fde58a50d

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta Payload 3 IoCs

Processes:

resource	yara_rule
behavioral1/memory/2448-123-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2448-124-0x00000000004080E4-mapping.dmp	family_neshta
behavioral1/memory/2448-125-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta

Modifies system executable filetype association 2 TTPs 1 IoCs

Modify Registry

Change Default File Association

Processes:

42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.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:

42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe

description	pid	process	target process
PID 900 set thread context of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe

Drops file in Program Files directory 55 IoCs

Processes:

42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{F4220~1\VC_RED~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\armsvc.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~4.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\WinMail.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GOBD5D~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GOFB2B~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ACCESS~1\wordpad.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Google\Temp\GUM18A1.tmp\GOFB2B~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GO664E~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~2.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GOOGLE~3.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Google\Update\1335~1.452\GOF5E2~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe

Drops file in Windows directory 1 IoCs

Processes:

42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe

description ioc process

File opened for modification C:\Windows\svchost.com 42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 1 IoCs

Processes:

42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe

description	pid	process	target process
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
PID 900 wrote to memory of 2448	900	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe	42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe

C:\Users\Admin\AppData\Local\Temp\42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
"C:\Users\Admin\AppData\Local\Temp\42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:900

C:\Users\Admin\AppData\Local\Temp\42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe
"C:\Users\Admin\AppData\Local\Temp\42b3efec41088a0afd2cc17e038169dd572baa116aa734a427012d39917f4107.exe"
2⤵
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
PID:2448

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

Privilege Escalation

Defense Evasion

Modify Registry

Credential Access

Credentials in Files

Discovery

System Information Discovery

Lateral Movement

Collection

Data from Local System

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/900-114-0x0000000000F90000-0x0000000000F91000-memory.dmp

Filesize
4KB

Download
memory/900-116-0x0000000005DD0000-0x0000000005DD1000-memory.dmp

Filesize
4KB

Download
memory/900-117-0x0000000005970000-0x0000000005971000-memory.dmp

Filesize
4KB

Download
memory/900-118-0x00000000058D0000-0x0000000005DCE000-memory.dmp

Filesize
5.0MB

Download
memory/900-119-0x00000000058E0000-0x00000000058E1000-memory.dmp

Filesize
4KB

Download
memory/900-120-0x0000000005BD0000-0x0000000005BE1000-memory.dmp

Filesize
68KB

Download
memory/900-121-0x00000000076B0000-0x00000000076B1000-memory.dmp

Filesize
4KB

Download
memory/900-122-0x0000000007F60000-0x0000000007FB6000-memory.dmp

Filesize
344KB

Download
memory/2448-123-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2448-124-0x00000000004080E4-mapping.dmp

Download
memory/2448-125-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download