neshta | ec0627ef1feef5903f5771bdb6df060a295af132e90ed023f2e1ad14d5ffb40b

General

Target

8fdf6032932fa1a0c9b0fd342ee8bee1.exe
Size

1.1MB
MD5

8fdf6032932fa1a0c9b0fd342ee8bee1
SHA1

5b939ccc5f0eaf36dd38915af1da00065940cf70
SHA256

ec0627ef1feef5903f5771bdb6df060a295af132e90ed023f2e1ad14d5ffb40b
SHA512

0d74c116728fb3d40a49bd0ee7658ac0f5984a2bf5fe180bd36714db15534dc4a3148ba710360138e0032bc149423170b6a3e2808d368a2c0d3e51365236df8e

Score

10^/10

neshta persistence spyware

Malware Config

Signatures

Detect Neshta Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1020-126-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/1020-127-0x00000000004080E4-mapping.dmp	family_neshta
behavioral2/memory/1020-130-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta

Modifies system executable filetype association 2 TTPs 1 IoCs
persistence

Modify Registry
T1112

Change Default File Association
T1042

Processes:

vbc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" vbc.exe
Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
Uses the VBS compiler for execution 1 TTPs

Scripting
T1064
Suspicious use of SetThreadContext 1 IoCs

Processes:

8fdf6032932fa1a0c9b0fd342ee8bee1.exe

description pid process target process

PID 2392 set thread context of 1020 2392 8fdf6032932fa1a0c9b0fd342ee8bee1.exe vbc.exe

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

description	pid	process	target process
PID 2392 set thread context of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe

Drops file in Program Files directory 53 IoCs

Processes:

vbc.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	vbc.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	vbc.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GO664E~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\WinMail.exe	vbc.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{F4220~1\VC_RED~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\armsvc.exe	vbc.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	vbc.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	vbc.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	vbc.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ACCESS~1\wordpad.exe	vbc.exe

Drops file in Windows directory 1 IoCs

Processes:

vbc.exe

description ioc process

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

System Information Discovery
T1082
Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
persistence

Scheduled Task
T1053

Processes:

schtasks.exe

pid process

3500 schtasks.exe
Modifies registry class 1 IoCs

Processes:

vbc.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" vbc.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

8fdf6032932fa1a0c9b0fd342ee8bee1.exe

pid process

2392 8fdf6032932fa1a0c9b0fd342ee8bee1.exe
2392 8fdf6032932fa1a0c9b0fd342ee8bee1.exe
Suspicious use of AdjustPrivilegeToken 1 IoCs

Processes:

8fdf6032932fa1a0c9b0fd342ee8bee1.exe

description pid process

Token: SeDebugPrivilege 2392 8fdf6032932fa1a0c9b0fd342ee8bee1.exe

description	ioc	process
File opened for modification	C:\Windows\svchost.com	vbc.exe

pid	process
3500	schtasks.exe

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

pid	process
2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe
2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe

description	pid	process
Token: SeDebugPrivilege	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

8fdf6032932fa1a0c9b0fd342ee8bee1.exe

description	pid	process	target process
PID 2392 wrote to memory of 3500	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	schtasks.exe
PID 2392 wrote to memory of 3500	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	schtasks.exe
PID 2392 wrote to memory of 3500	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	schtasks.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe
PID 2392 wrote to memory of 1020	2392	8fdf6032932fa1a0c9b0fd342ee8bee1.exe	vbc.exe

C:\Users\Admin\AppData\Local\Temp\8fdf6032932fa1a0c9b0fd342ee8bee1.exe
"C:\Users\Admin\AppData\Local\Temp\8fdf6032932fa1a0c9b0fd342ee8bee1.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2392

C:\Windows\SysWOW64\schtasks.exe
"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\WKhqxqLdmqoS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2C31.tmp"
2⤵
- Creates scheduled task(s)
PID:3500

C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\vbc.exe"
2⤵
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
PID:1020

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

Scripting

Persistence

Change Default File Association

Scheduled Task

Privilege Escalation

Scheduled Task

1

T1053

Defense Evasion

Modify Registry

Scripting

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Roaming\WKHQXQ~1.EXE
MD5
8fdf6032932fa1a0c9b0fd342ee8bee1

SHA1
5b939ccc5f0eaf36dd38915af1da00065940cf70

SHA256
ec0627ef1feef5903f5771bdb6df060a295af132e90ed023f2e1ad14d5ffb40b

SHA512
0d74c116728fb3d40a49bd0ee7658ac0f5984a2bf5fe180bd36714db15534dc4a3148ba710360138e0032bc149423170b6a3e2808d368a2c0d3e51365236df8e

Download Submit
memory/1020-126-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1020-130-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1020-127-0x00000000004080E4-mapping.dmp

Download
memory/2392-122-0x00000000074C0000-0x00000000074C1000-memory.dmp

Filesize
4KB

Download
memory/2392-121-0x0000000004E80000-0x000000000537E000-memory.dmp

Filesize
5.0MB

Download
memory/2392-115-0x0000000000380000-0x0000000000381000-memory.dmp

Filesize
4KB

Download
memory/2392-123-0x0000000007700000-0x00000000077AC000-memory.dmp

Filesize
688KB

Download
memory/2392-124-0x00000000077B0000-0x0000000007839000-memory.dmp

Filesize
548KB

Download
memory/2392-120-0x0000000004D00000-0x0000000004D1D000-memory.dmp

Filesize
116KB

Download
memory/2392-119-0x0000000004CC0000-0x0000000004CC1000-memory.dmp

Filesize
4KB

Download
memory/2392-118-0x0000000004D20000-0x0000000004D21000-memory.dmp

Filesize
4KB

Download
memory/2392-117-0x0000000005380000-0x0000000005381000-memory.dmp

Filesize
4KB

Download
memory/3500-125-0x0000000000000000-mapping.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads