neshta | 4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715c

Analysis

max time kernel
119s
max time network
17s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
03/11/2024, 12:43

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General

Target

4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
Size

1.2MB
MD5

cd3c5d3933f0ebfbf765add5c167e490
SHA1

de49989921ef4d1d53c2f299687e3d3ea5906556
SHA256

4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715c
SHA512

a8db43aa46a361a6c53338291fd9ca63e180022bc4ad89ab4471dcd82a5ccfdd5b2b780051c0d6a26f686f3e11e035ac5a85ea0cd845758b7b51889bda4477f0
SSDEEP

24576:9j6wMJi1YXHmiJDxguF465W2sLnmCPnmkqJ:9j6KYXGiJOLnmCPnm1J

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010314-10.dat	family_neshta
behavioral1/memory/1724-92-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1724-94-0x0000000000400000-0x000000000041B000-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
Neshta family
neshta

Executes dropped EXE 1 IoCs

pid	Process
2388	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe

Loads dropped DLL 11 IoCs

pid	Process
1724	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
868	WerFault.exe
868	WerFault.exe
868	WerFault.exe
868	WerFault.exe
868	WerFault.exe
868	WerFault.exe
868	WerFault.exe
868	WerFault.exe
868	WerFault.exe
1724	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.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\" %*"	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
868	2388	WerFault.exe	30

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 2388	1724	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe	30
PID 1724 wrote to memory of 2388	1724	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe	30
PID 1724 wrote to memory of 2388	1724	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe	30
PID 1724 wrote to memory of 2388	1724	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe	30
PID 2388 wrote to memory of 868	2388	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe	31
PID 2388 wrote to memory of 868	2388	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe	31
PID 2388 wrote to memory of 868	2388	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe	31
PID 2388 wrote to memory of 868	2388	4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe	31

C:\Users\Admin\AppData\Local\Temp\4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
"C:\Users\Admin\AppData\Local\Temp\4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Users\Admin\AppData\Local\Temp\3582-490\4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2388
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2388 -s 212
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:868

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

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

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
\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\4c656261260085d59da4f50ab6552607ba8c142c44352942f7e81e546c30715cN.exe

Filesize
1.1MB

MD5
634dbb565103a2d62ce07a3f33f2293e

SHA1
b688a503b0357409e5b860b832e56111ac5d3409

SHA256
9d27bf8f20312a24cac308163e05455441561cfa3a3362609d3d271cbafb46c9

SHA512
1edf62076fa0967342da42b7fa68a5f65956d8a55f8c9e6670d743db8ef0850fbaae9d1adcbbd71fe36ae69916101ea3774f117b14c620e446a87b43f4d133e3

Download Submit
memory/1724-92-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1724-94-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads