neshta | 436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c

Analysis

max time kernel
119s
max time network
123s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/11/2024, 21:58

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General

Target

436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
Size

832KB
MD5

4e77be938dc57f1f0f0c1bc0201aad5d
SHA1

7b6956bff08ac9532577a31e6ee9e0d26cbfc44c
SHA256

436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c
SHA512

df6189086469241b2191f26672013ddd1e4dfd11c024e7a59964003026431c1f885bbf5458e2a9bf94d97a1127f660fc111c52da09bb509ba6b4adf768b3b9b6
SSDEEP

12288:LmUiCPDZy80W9XX+xlRd+WZnY3G/hS+HgXq88E:g8PunZyShkq88E

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010314-13.dat	family_neshta
behavioral1/memory/2384-91-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2384-93-0x0000000000400000-0x000000000041B000-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
316	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe

Loads dropped DLL 8 IoCs

pid	Process
2384	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
2384	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
1972	WerFault.exe
1972	WerFault.exe
1972	WerFault.exe
1972	WerFault.exe
1972	WerFault.exe
2384	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.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\" %*"	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.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\INTERN~1\iexplore.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.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
1972	316	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	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.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\" %*"	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2384 wrote to memory of 316	2384	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe	30
PID 2384 wrote to memory of 316	2384	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe	30
PID 2384 wrote to memory of 316	2384	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe	30
PID 2384 wrote to memory of 316	2384	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe	30
PID 316 wrote to memory of 1972	316	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe	31
PID 316 wrote to memory of 1972	316	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe	31
PID 316 wrote to memory of 1972	316	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe	31
PID 316 wrote to memory of 1972	316	436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe	31

C:\Users\Admin\AppData\Local\Temp\436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
"C:\Users\Admin\AppData\Local\Temp\436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.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:2384
- C:\Users\Admin\AppData\Local\Temp\3582-490\436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:316
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 316 -s 148
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:1972

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\436f05c9048d16b70e137d142e78f4cd53f22db635ff09971af3b3901c5ca87c.exe

Filesize
792KB

MD5
b6ccff9a43baf5db72a8e8ed0d9fea59

SHA1
275ddd0f6a4ccdc3cd69840a6b9d29883969df40

SHA256
4a36e3b1794fb5fd94684e7790fc751629ee306970e8908c249b6bed35c8b561

SHA512
40976a91a4d15c8d67fba1025aa1ab66ab5cd7f285c703253760713aa45d5862d095ac078d0f765d93b08a15b9c6d37b60e33e3b2e2135a24f485d4293f3ff73

Download Submit
memory/2384-91-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2384-93-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads