neshta | 7f0243db091ea76bbd479b92ef05cd38dd72b93b271f5a7b56493b9815fe01f4

Analysis

max time kernel
104s
max time network
120s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/08/2024, 10:02

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General

Target

b33a5635b957fe4802b11ad5b028d8a0N.exe
Size

2.5MB
MD5

b33a5635b957fe4802b11ad5b028d8a0
SHA1

a98f75418e1e12205418d67eb90bf97e478a91e1
SHA256

7f0243db091ea76bbd479b92ef05cd38dd72b93b271f5a7b56493b9815fe01f4
SHA512

3a4025402317926bf361d2866bf1ce577900eecf98c03a7b2ed078b35e3d8e371717b11f44602e8f0ffc65f27bcfea0eab963d956ae97157b259cd7865bdfef2
SSDEEP

24576:DvhfydH/y3H8r5+bF2P8NWgOsgf1jMDHwqDrMl9ecjDXuiBe2vgeeY95p3mP:73a5+bF9bgf1VUYl8sXLgeeY95cP

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 4 IoCs

resource	yara_rule
behavioral2/files/0x000600000002025a-19.dat	family_neshta
behavioral2/memory/3028-101-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3028-102-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3028-104-0x0000000000400000-0x000000000041B000-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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	b33a5635b957fe4802b11ad5b028d8a0N.exe

Executes dropped EXE 1 IoCs

pid	Process
1252	b33a5635b957fe4802b11ad5b028d8a0N.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\" %*"	b33a5635b957fe4802b11ad5b028d8a0N.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\COMMON~1\Oracle\Java\javapath\java.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13195~1.15\MICROS~2.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13195~1.15\MI9C33~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\COOKIE~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13195~1.15\MICROS~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF5AF~1\WINDOW~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{D87AE~1\WINDOW~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~3.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~4.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOBD5D~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOF5E2~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{63880~1\WINDOW~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13195~1.15\MICROS~4.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\MicrosoftEdgeUpdate.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13195~1.15\MICROS~3.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GO664E~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaws.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13195~1.15\MIA062~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\setup_wm.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	b33a5635b957fe4802b11ad5b028d8a0N.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	b33a5635b957fe4802b11ad5b028d8a0N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	b33a5635b957fe4802b11ad5b028d8a0N.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
1452	1252	WerFault.exe	85

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	b33a5635b957fe4802b11ad5b028d8a0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	b33a5635b957fe4802b11ad5b028d8a0N.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\" %*"	b33a5635b957fe4802b11ad5b028d8a0N.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 3028 wrote to memory of 1252	3028	b33a5635b957fe4802b11ad5b028d8a0N.exe	85
PID 3028 wrote to memory of 1252	3028	b33a5635b957fe4802b11ad5b028d8a0N.exe	85
PID 3028 wrote to memory of 1252	3028	b33a5635b957fe4802b11ad5b028d8a0N.exe	85

C:\Users\Admin\AppData\Local\Temp\b33a5635b957fe4802b11ad5b028d8a0N.exe
"C:\Users\Admin\AppData\Local\Temp\b33a5635b957fe4802b11ad5b028d8a0N.exe"
1⤵
- Checks computer location settings
- 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:3028
- C:\Users\Admin\AppData\Local\Temp\3582-490\b33a5635b957fe4802b11ad5b028d8a0N.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\b33a5635b957fe4802b11ad5b028d8a0N.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:1252
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1252 -s 1384
    3⤵
    - Program crash
    PID:1452

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 1252 -ip 1252
1⤵
PID:5016

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

Query Registry

T1012

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\b33a5635b957fe4802b11ad5b028d8a0N.exe

Filesize
2.4MB

MD5
3c7bff8d4e4bc7de8121dd122146eb70

SHA1
9838ebb3b81d46c8ab1fa0025b2eeadf3702b94c

SHA256
5fd49cc744dfb63ff06657233fb30ee783b8567530f2dfa936e576b06011cd23

SHA512
549c746fd793adada827ff4fcf4db3452b339800a027eb50c9a59b05a50385e375766c80ca96aeff3aee592c9543c0ec0e5c98cbaae3310289dcaace9de7c251

Download Submit
memory/1252-12-0x000000007403E000-0x000000007403F000-memory.dmp

Filesize
4KB

Download
memory/1252-13-0x0000000000850000-0x0000000000AC6000-memory.dmp

Filesize
2.5MB

Download
memory/1252-14-0x0000000005410000-0x0000000005466000-memory.dmp

Filesize
344KB

Download
memory/1252-15-0x0000000074030000-0x00000000747E0000-memory.dmp

Filesize
7.7MB

Download
memory/1252-30-0x0000000074030000-0x00000000747E0000-memory.dmp

Filesize
7.7MB

Download
memory/3028-101-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3028-102-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3028-104-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads