neshta | b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee

General

Target

b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
Size

1.3MB
MD5

f3f3f21a24e488b982bd729545ff0a98
SHA1

85bcb4af9c5851e98102b7b342fa7d690836f8c4
SHA256

b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee
SHA512

41fe9b72d7bd4881f07057bf9bb32f14f7df9f346af341bce3b807b55900eb951da493d248d5c937d8d588a779dd10e124a30c5565232cee6559668b7155d27a

Score

10^/10

neshta evasion persistence spyware stealer

Malware Config

Signatures

Detect Neshta Payload 1 IoCs

Processes:

resource	yara_rule
behavioral1/memory/820-58-0x0000000000400000-0x00000000005A4000-memory.dmp	family_neshta

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs
evasion

Query Registry
T1012

Virtualization/Sandbox Evasion
T1497

Checks BIOS information in registry 2 TTPs 2 IoCs

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

Query Registry

T1012

System Information Discovery

T1082

Processes:

b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\VideoBiosVersion	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

Identifies Wine through registry keys 2 TTPs 1 IoCs

Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.

evasion

Query Registry

T1012

Virtualization/Sandbox Evasion

T1497

Processes:

b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

description	ioc	process
Key opened	\REGISTRY\USER\S-1-5-21-2329389628-4064185017-3901522362-1000\Software\Wine	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.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
T1081
Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

Processes:

b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

pid process

820 b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

pid	process
820	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

Drops file in Program Files directory 64 IoCs

Processes:

b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{F4220~1\VC_RED~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

Drops file in Windows directory 1 IoCs

Processes:

b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

description ioc process

File opened for modification C:\Windows\svchost.com b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.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	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

Modifies registry class 1 IoCs

Processes:

b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

Processes:

b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

pid process

820 b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

pid	process
820	b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe

C:\Users\Admin\AppData\Local\Temp\b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe
"C:\Users\Admin\AppData\Local\Temp\b6bec797d64005ed44c1ef3720519ffe1174a89e72a37655943b9491d94305ee.exe"
1⤵
- Modifies system executable filetype association
- Checks BIOS information in registry
- Identifies Wine through registry keys
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
PID:820

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Virtualization/Sandbox Evasion

2

T1497

Credential Access

Credentials in Files

1

T1081

Discovery

Query Registry

3

T1012

System Information Discovery

2

T1082

Virtualization/Sandbox Evasion

2

T1497

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/820-55-0x0000000076921000-0x0000000076923000-memory.dmp

Filesize
8KB

Download
memory/820-58-0x0000000000400000-0x00000000005A4000-memory.dmp

Filesize
1.6MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads