neshta | 58f9dd03f6e10fb5b19b0e76a9a52c411c6e304990b57b1c7779c0191cd5ed24

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20231023-en
resource tags

arch:x64arch:x86image:win7-20231023-enlocale:en-usos:windows7-x64system
submitted
15/11/2023, 15:41

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General

Target

NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
Size

1.2MB
MD5

f29a7c084fde7f0c52ed270a5b61bd41
SHA1

624721b94c56309b2cfb354d02b9f086d18c65e7
SHA256

58f9dd03f6e10fb5b19b0e76a9a52c411c6e304990b57b1c7779c0191cd5ed24
SHA512

0d2985d64e6b869cad7a97840b7edab5bcbb220163f9cb6fca1a2b3fd7b02adc186b7e319ec99cc2bc1e74880b1e09816c3958ce94ac5cc2727dab848c1c6baa
SSDEEP

12288:PRz5FkY4pfCPLdAh/a66y4bSxaLgDVUqJENAghNLiejJOyCZHx8CY0xGL63FeKQJ:PjFkGzdAhy6vkgRUE+hBipyCZHPxAr

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 10 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010324-10.dat	family_neshta
behavioral1/memory/2228-83-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2228-86-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2228-87-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2228-88-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2228-89-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2228-90-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2228-91-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2228-92-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2228-94-0x0000000000400000-0x000000000041B000-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
1416	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe

Loads dropped DLL 2 IoCs

pid	Process
2228	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
2228	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.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.f29a7c084fde7f0c52ed270a5b61bd41.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\GOF5E2~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.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.f29a7c084fde7f0c52ed270a5b61bd41.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2228 wrote to memory of 1416	2228	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe	28
PID 2228 wrote to memory of 1416	2228	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe	28
PID 2228 wrote to memory of 1416	2228	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe	28
PID 2228 wrote to memory of 1416	2228	NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe	28

C:\Users\Admin\AppData\Local\Temp\NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
"C:\Users\Admin\AppData\Local\Temp\NEAS.f29a7c084fde7f0c52ed270a5b61bd41.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:2228
- C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\NEAS.f29a7c084fde7f0c52ed270a5b61bd41.exe"
  2⤵
  - Executes dropped EXE
  PID:1416

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.f29a7c084fde7f0c52ed270a5b61bd41.exe

Filesize
1.2MB

MD5
662c45c2d9e3329fd0ef2f37e66a7508

SHA1
c2af6c7784b7ec7b802f264d480fad3ddc781bf7

SHA256
ef6b6237d03439f66c7784748302e8ef39a09b2dc93f8060e65a4b56bdaba782

SHA512
b3f260720f4d50423015c6d4cf31bd5e5fe03c5c88df1ca4d3235b93bde85d847d4d309ba06fad0e66be56bdec61a43a87f0176b70e0bc39f4e9b5fd0cccac6d

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.f29a7c084fde7f0c52ed270a5b61bd41.exe

Filesize
1.2MB

MD5
662c45c2d9e3329fd0ef2f37e66a7508

SHA1
c2af6c7784b7ec7b802f264d480fad3ddc781bf7

SHA256
ef6b6237d03439f66c7784748302e8ef39a09b2dc93f8060e65a4b56bdaba782

SHA512
b3f260720f4d50423015c6d4cf31bd5e5fe03c5c88df1ca4d3235b93bde85d847d4d309ba06fad0e66be56bdec61a43a87f0176b70e0bc39f4e9b5fd0cccac6d

Download Submit
memory/2228-87-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2228-86-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2228-83-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2228-88-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2228-89-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2228-90-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2228-91-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2228-92-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2228-94-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads