neshta | 254fee5a819e3c23240c7bdcc0c851b61e83ba00a488e7910ec70f52e3f63519

Analysis

max time kernel
117s
max time network
130s
platform
windows7_x64
resource
win7-20231020-en
resource tags

arch:x64arch:x86image:win7-20231020-enlocale:en-usos:windows7-x64system
submitted
05/11/2023, 20:15

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General

Target

NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
Size

445KB
MD5

19b7822ae89285855eafa45ab1a9f9f0
SHA1

9d994ec6db7f8130e91ae3126332826e5e096fee
SHA256

254fee5a819e3c23240c7bdcc0c851b61e83ba00a488e7910ec70f52e3f63519
SHA512

ac356ab36aa34d8a8520d7b3ce2b82aab61fffeae20ed9815eaa6a0955b192e345af64f6ccf95de55fdaecf53aa36a83e61ae19e81f168e8fe2d1aa77992f7d0
SSDEEP

6144:k91RCGNtNQWER0u+GIIIIIIIhIIIIIIIIIIIIIIIUMPn64gUHUR8:29NtNQtm5MP64gmR

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010326-12.dat	family_neshta
behavioral1/memory/2108-85-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2108-86-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2108-87-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2108-88-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2108-90-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta

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

pid	Process
2748	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe

Loads dropped DLL 3 IoCs

pid	Process
2108	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
2108	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
2108	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	NEAS.19b7822ae89285855eafa45ab1a9f9f0.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
T1552.001

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2108 wrote to memory of 2748	2108	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe	28
PID 2108 wrote to memory of 2748	2108	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe	28
PID 2108 wrote to memory of 2748	2108	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe	28
PID 2108 wrote to memory of 2748	2108	NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2108
- C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe"
  2⤵
  - Executes dropped EXE
  PID:2748

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

Filesize
547KB

MD5
cf6c595d3e5e9667667af096762fd9c4

SHA1
9bb44da8d7f6457099cb56e4f7d1026963dce7ce

SHA256
593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

SHA512
ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe

Filesize
404KB

MD5
c201f0d6f14e637b69c9e4711a982748

SHA1
375f435b07ddf75a3e3415b611316bc156dbfbe6

SHA256
b195a0ae5521a81e663a1778d0821db0285d4b84e78971be08b8d25f684bcccd

SHA512
0cbc7e7d6585084616b43934964ebedb21e8a086bbc1e49fd2426225d7d041e88df4bba918a52e7b46b1ad06087386be8362d5445959260ba5e61af27d913736

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe

Filesize
404KB

MD5
c201f0d6f14e637b69c9e4711a982748

SHA1
375f435b07ddf75a3e3415b611316bc156dbfbe6

SHA256
b195a0ae5521a81e663a1778d0821db0285d4b84e78971be08b8d25f684bcccd

SHA512
0cbc7e7d6585084616b43934964ebedb21e8a086bbc1e49fd2426225d7d041e88df4bba918a52e7b46b1ad06087386be8362d5445959260ba5e61af27d913736

Download Submit
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
\Users\Admin\AppData\Local\Temp\3582-490\NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe

Filesize
404KB

MD5
c201f0d6f14e637b69c9e4711a982748

SHA1
375f435b07ddf75a3e3415b611316bc156dbfbe6

SHA256
b195a0ae5521a81e663a1778d0821db0285d4b84e78971be08b8d25f684bcccd

SHA512
0cbc7e7d6585084616b43934964ebedb21e8a086bbc1e49fd2426225d7d041e88df4bba918a52e7b46b1ad06087386be8362d5445959260ba5e61af27d913736

Download Submit
\Users\Admin\AppData\Local\Temp\3582-490\NEAS.19b7822ae89285855eafa45ab1a9f9f0.exe

Filesize
404KB

MD5
c201f0d6f14e637b69c9e4711a982748

SHA1
375f435b07ddf75a3e3415b611316bc156dbfbe6

SHA256
b195a0ae5521a81e663a1778d0821db0285d4b84e78971be08b8d25f684bcccd

SHA512
0cbc7e7d6585084616b43934964ebedb21e8a086bbc1e49fd2426225d7d041e88df4bba918a52e7b46b1ad06087386be8362d5445959260ba5e61af27d913736

Download Submit
memory/2108-85-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2108-86-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2108-87-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2108-88-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2108-90-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads