neshta | 5597878b9d511ad8a3e93423174ce90b689523fb00912e93bc704db788539ec8

General

Target

EA01 V21-20_Draft BL_pdf.exe
Size

420KB
MD5

677debbec0f889404abc3bfdf3759b84
SHA1

f274992507f2caa6c24572f5c303bbf4648e66e3
SHA256

5597878b9d511ad8a3e93423174ce90b689523fb00912e93bc704db788539ec8
SHA512

1715dd54dd7dbd70d416a1b077141fd8211a53b2fca77b1898c670a9e5a6d9f2f231d0e556a50a44284c71b861c26d65600890b18abe1e461a927f3fbc896bd7

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta Payload 3 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2512-124-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/2512-125-0x00000000004080E4-mapping.dmp	family_neshta
behavioral2/memory/2512-126-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

EA01 V21-20_Draft BL_pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	EA01 V21-20_Draft BL_pdf.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:

EA01 V21-20_Draft BL_pdf.exe

description pid process target process

PID 2116 set thread context of 2512 2116 EA01 V21-20_Draft BL_pdf.exe EA01 V21-20_Draft BL_pdf.exe

description	pid	process	target process
PID 2116 set thread context of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe

Drops file in Program Files directory 53 IoCs

Processes:

EA01 V21-20_Draft BL_pdf.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GO664E~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{F4220~1\VC_RED~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\armsvc.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\WinMail.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ACCESS~1\wordpad.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	EA01 V21-20_Draft BL_pdf.exe

Drops file in Windows directory 1 IoCs

Processes:

EA01 V21-20_Draft BL_pdf.exe

description ioc process

File opened for modification C:\Windows\svchost.com EA01 V21-20_Draft BL_pdf.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	EA01 V21-20_Draft BL_pdf.exe

Modifies registry class 1 IoCs

Processes:

EA01 V21-20_Draft BL_pdf.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	EA01 V21-20_Draft BL_pdf.exe

Suspicious use of WriteProcessMemory 11 IoCs

Processes:

EA01 V21-20_Draft BL_pdf.exe

description	pid	process	target process
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 2116 wrote to memory of 2512	2116	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe

C:\Users\Admin\AppData\Local\Temp\EA01 V21-20_Draft BL_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\EA01 V21-20_Draft BL_pdf.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2116

C:\Users\Admin\AppData\Local\Temp\EA01 V21-20_Draft BL_pdf.exe
"C:\Users\Admin\AppData\Local\Temp\EA01 V21-20_Draft BL_pdf.exe"
2⤵
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
PID:2512

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

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

memory/2116-115-0x00000000008D0000-0x00000000008D1000-memory.dmp

Filesize
4KB

Download
memory/2116-117-0x00000000055E0000-0x00000000055E1000-memory.dmp

Filesize
4KB

Download
memory/2116-118-0x0000000005180000-0x0000000005181000-memory.dmp

Filesize
4KB

Download
memory/2116-119-0x0000000005170000-0x0000000005171000-memory.dmp

Filesize
4KB

Download
memory/2116-120-0x00000000050E0000-0x00000000055DE000-memory.dmp

Filesize
5.0MB

Download
memory/2116-121-0x00000000076D0000-0x00000000076D1000-memory.dmp

Filesize
4KB

Download
memory/2116-122-0x0000000005310000-0x000000000531A000-memory.dmp

Filesize
40KB

Download
memory/2116-123-0x0000000007B50000-0x0000000007BA6000-memory.dmp

Filesize
344KB

Download
memory/2512-124-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2512-125-0x00000000004080E4-mapping.dmp

Download
memory/2512-126-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads