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
behavioral1/memory/956-58-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/956-59-0x00000000004080E4-mapping.dmp	family_neshta
behavioral1/memory/956-61-0x0000000000400000-0x000000000041B000-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
Loads dropped DLL 1 IoCs

Processes:

EA01 V21-20_Draft BL_pdf.exe

pid process

956 EA01 V21-20_Draft BL_pdf.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 SetThreadContext 1 IoCs

Processes:

EA01 V21-20_Draft BL_pdf.exe

description pid process target process

PID 1568 set thread context of 956 1568 EA01 V21-20_Draft BL_pdf.exe EA01 V21-20_Draft BL_pdf.exe

pid	process
956	EA01 V21-20_Draft BL_pdf.exe

description	pid	process	target process
PID 1568 set thread context of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe

Drops file in Program Files directory 64 IoCs

Processes:

EA01 V21-20_Draft BL_pdf.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~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\MICROS~1\Office14\ACCICONS.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~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\WINDOW~1\wab.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.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\MICROS~1\Office14\CLVIEW.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.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\COMMON~1\MICROS~1\MSInfo\msinfo32.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\WI4223~1\sidebar.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.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\Google\Update\DISABL~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.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\INTERN~1\ieinstal.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.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\WI54FB~1\WMPDMC.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\WINDOW~4\ImagingDevices.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\READER~1.0\Reader\ADOBEC~1.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.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\MICROS~1\Office14\SELFCERT.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.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\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.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\COMMON~1\MICROS~1\ink\mip.exe	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.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\MICROS~1\Office14\MSQRY32.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.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\Google\Update\1336~1.71\GOOGLE~4.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	EA01 V21-20_Draft BL_pdf.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.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 12 IoCs

Processes:

EA01 V21-20_Draft BL_pdf.exe

description	pid	process	target process
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	EA01 V21-20_Draft BL_pdf.exe	EA01 V21-20_Draft BL_pdf.exe
PID 1568 wrote to memory of 956	1568	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:1568

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
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
PID:956

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

\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE
MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
memory/956-58-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/956-59-0x00000000004080E4-mapping.dmp

Download
memory/956-60-0x0000000075A71000-0x0000000075A73000-memory.dmp

Filesize
8KB

Download
memory/956-61-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1568-53-0x0000000000C20000-0x0000000000C21000-memory.dmp

Filesize
4KB

Download
memory/1568-55-0x0000000004D80000-0x0000000004D81000-memory.dmp

Filesize
4KB

Download
memory/1568-56-0x0000000000530000-0x000000000053A000-memory.dmp

Filesize
40KB

Download
memory/1568-57-0x00000000050F0000-0x0000000005146000-memory.dmp

Filesize
344KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads