neshta | 497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b

General

Target

497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
Size

259KB
MD5

06035be4f17bdbd0c8243c5b3dd42366
SHA1

7b73f5612c1b122fdccec5e4c95f8f6320767b9c
SHA256

497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b
SHA512

d745240051a063ebf0420f8b7dc22af879efb4298b4f0379da822fac0208e188095075290a01e166da12b8bb98ed72c237d13d3fe86e0ffba68c6a7fe75f9ff1
SSDEEP

3072:sr85CtGbGTeJQAGRtXZ0UMzg4qyr4MXhVumXmN4vcZ9TPiMIK9QKHOj5MFjEucpt:k9tEGTeOXDpsgvGyS/Dk9OPZ3NxB

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:

497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.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:

497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

pid process

2988 497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

pid	process
2988	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.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:

497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

Drops file in Program Files directory 22 IoCs

Processes:

497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

Drops file in Windows directory 1 IoCs

Processes:

497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

description ioc process

File opened for modification C:\Windows\svchost.com 497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.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	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Modifies registry class 1 IoCs

Processes:

497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dw20.exe

description pid process

Token: SeBackupPrivilege 3644 dw20.exe
Token: SeBackupPrivilege 3644 dw20.exe

description	pid	process
Token: SeBackupPrivilege	3644	dw20.exe
Token: SeBackupPrivilege	3644	dw20.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

description	pid	process	target process
PID 4072 wrote to memory of 2988	4072	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
PID 4072 wrote to memory of 2988	4072	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
PID 2988 wrote to memory of 3644	2988	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe	dw20.exe
PID 2988 wrote to memory of 3644	2988	497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
"C:\Users\Admin\AppData\Local\Temp\497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.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:4072
- C:\Users\Admin\AppData\Local\Temp\3582-490\497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:2988
- - C:\Windows\Microsoft.NET\Framework64\v2.0.50727\dw20.exe
    dw20.exe -x -s 984
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:3644

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

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\3582-490\497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

Filesize
218KB

MD5
cc1ecb0088c3d0e5a64abb06f84045fb

SHA1
c4e06d186b89e17912588d03a8711bb69972ed19

SHA256
5cecbfc0126dc21c1cff025af20e55509f758e25aa2ab12ce38e6953c30a6326

SHA512
9c407358021f547daaa1aad993ba0288938dad9ac9245006777751107cdadf852c7de8c573bd4b1fb0f8924fb4ca9594ba38507273190f148a891eda76754a40

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\497c720f4d8ef8bba043f887ed024e124cc76700c717862ee5b2224f31ad782b.exe

Filesize
218KB

MD5
cc1ecb0088c3d0e5a64abb06f84045fb

SHA1
c4e06d186b89e17912588d03a8711bb69972ed19

SHA256
5cecbfc0126dc21c1cff025af20e55509f758e25aa2ab12ce38e6953c30a6326

SHA512
9c407358021f547daaa1aad993ba0288938dad9ac9245006777751107cdadf852c7de8c573bd4b1fb0f8924fb4ca9594ba38507273190f148a891eda76754a40

Download Submit
memory/2988-132-0x0000000000000000-mapping.dmp

Download
memory/2988-135-0x00007FF80B470000-0x00007FF80BEA6000-memory.dmp

Filesize
10.2MB

Download
memory/3644-136-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads