neshta | 5dfe5a25a9143133f263ba85ed196a82f500cdc04d9ac9ff95ce38b6c42e4bc9

Analysis

max time kernel
20s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
23-01-2025 15:03

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General

Target

Update.exe
Size

2.3MB
MD5

062edb3464378eee157f157328cc187f
SHA1

d4a4e6c7f222ecc72566c5e16e6fe1695ace97ff
SHA256

5dfe5a25a9143133f263ba85ed196a82f500cdc04d9ac9ff95ce38b6c42e4bc9
SHA512

fc51e060b2f8acea82eb76499e40f7b058c8994632d5a96e6ea49fba15aa9f3c1bf06b637c63f8405590ba18a31cd034893e2a8ec2055b2eba19d5134f440e75
SSDEEP

24576:g7R5yse7DsuDvK+iDKDruSZAcZdwLWrShB0icDfXP0JCnC7tyZenVLC7Z3k/ICn:g7R5W7DNK+UZyicDf/0JCCx2Z3eH

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0007000000027819-23.dat	family_neshta
behavioral1/memory/4020-125-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/4020-126-0x0000000000400000-0x000000000041B000-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
3628	Update.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\" %*"	Update.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\COMMON~1\Oracle\Java\javapath\javaws.exe	Update.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~4.EXE	Update.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOF5E2~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	Update.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	Update.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	Update.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	Update.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaw.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateOnDemand.exe	Update.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF5AF~1\WINDOW~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\cookie_exporter.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\msedgewebview2.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\msedge_pwa_launcher.exe	Update.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	Update.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\notification_helper.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\pwahelper.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\pwahelper.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\msedge.exe	Update.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	Update.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	Update.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	Update.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOBD5D~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~2.EXE	Update.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\elevation_service.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateCore.exe	Update.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	Update.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	Update.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	Update.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\BHO\ie_to_edge_stub.exe	Update.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\msedge.exe	Update.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	Update.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	Update.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	Update.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GO664E~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\msedge_proxy.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateSetup.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeComRegisterShellARM64.exe	Update.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	Update.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	Update.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{63880~1\WINDOW~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~3.EXE	Update.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	Update.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.exe	Update.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\Installer\setup.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EdgeUpdate_bk\1.3.143.57\MicrosoftEdgeUpdateBroker.exe	Update.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\Application\90.0.818.66\identity_helper.exe	Update.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	Update.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	Update.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	Update.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\java.exe	Update.exe

Drops file in Windows directory 1 IoCs

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

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

System Information Discovery
T1082

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	Update.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Update.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\" %*"	Update.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4020 wrote to memory of 3628	4020	Update.exe	77
PID 4020 wrote to memory of 3628	4020	Update.exe	77
PID 4020 wrote to memory of 3628	4020	Update.exe	77

C:\Users\Admin\AppData\Local\Temp\Update.exe
"C:\Users\Admin\AppData\Local\Temp\Update.exe"
1⤵
- 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:4020
- C:\Users\Admin\AppData\Local\Temp\3582-490\Update.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\Update.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3628

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

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Downloads

C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

Filesize
86KB

MD5
3b73078a714bf61d1c19ebc3afc0e454

SHA1
9abeabd74613a2f533e2244c9ee6f967188e4e7e

SHA256
ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

SHA512
75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\Update.exe

Filesize
2.2MB

MD5
9282b08109d452769cd02aea56726878

SHA1
5388aa2b8a468600131f012f080fc8d781b55cf6

SHA256
4c71d4e6dba8c3b49ff2f6060af1bdaad486ae472ebc93280126d287788f2342

SHA512
0b74b08a01cc2e4edda0cf421c72bb1ef16acefd524596fda149c74076a8cd896ea56efd71eabf7124adf803fa856c2421271d78d2e562569105fc74bf7d3bc3

Download Submit
memory/3628-12-0x000000007332E000-0x000000007332F000-memory.dmp

Filesize
4KB

Download
memory/3628-13-0x0000000000070000-0x00000000002AE000-memory.dmp

Filesize
2.2MB

Download
memory/3628-14-0x0000000073320000-0x0000000073AD1000-memory.dmp

Filesize
7.7MB

Download
memory/3628-15-0x0000000004D00000-0x0000000004D1E000-memory.dmp

Filesize
120KB

Download
memory/3628-17-0x00000000054B0000-0x0000000005516000-memory.dmp

Filesize
408KB

Download
memory/3628-19-0x0000000073320000-0x0000000073AD1000-memory.dmp

Filesize
7.7MB

Download
memory/4020-125-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4020-126-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads