neshta | 50e759e171bb68187c565ada9ef879759db87a3aa6103c03a574579af161ce17

Analysis

max time kernel
135s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
14/06/2023, 12:39

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Tiger Stock2.exe
Size

3.8MB
MD5

4ee95f2bc0f313c7f9ad22cba0e5a099
SHA1

76c816d183eaf9bf32f3233a51334903cde9464c
SHA256

50e759e171bb68187c565ada9ef879759db87a3aa6103c03a574579af161ce17
SHA512

37e25dd932a3a4a2fa303665a50e87e4452c8f447bc0c121cefad99e97e8a0135ae60773f8a318f3e87cdab17bd3ec45645f6fe789a4e9cde0a50dc8a575e029
SSDEEP

49152:xLkgxDur1/hv2Lfe9YMJM4YKMgghfz3tl7nvxgmr:xPDur1/gwJM41Turz

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 13 IoCs

resource	yara_rule
behavioral2/files/0x000700000001f009-155.dat	family_neshta
behavioral2/memory/4360-217-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-229-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-230-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-231-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-232-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-233-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-235-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-236-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-237-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-238-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-240-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4360-242-0x0000000000400000-0x000000000041B000-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-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	Tiger Stock2.exe

Executes dropped EXE 1 IoCs

pid	Process
4376	Tiger Stock2.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	Tiger Stock2.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
T1081

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MI391D~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MICROS~3.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\setup_wm.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MICROS~4.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\MicrosoftEdgeUpdate.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13173~1.45\MICROS~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MIA062~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\COOKIE~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	Tiger Stock2.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	Tiger Stock2.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe
File opened for modification	C:\Windows\svchost.com	Tiger Stock2.exe

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

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.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\" %*"	Tiger Stock2.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeRestorePrivilege	2504	dw20.exe
Token: SeBackupPrivilege	2504	dw20.exe
Token: SeBackupPrivilege	2504	dw20.exe
Token: SeBackupPrivilege	2504	dw20.exe
Token: SeBackupPrivilege	2504	dw20.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 4360 wrote to memory of 4376	4360	Tiger Stock2.exe	82
PID 4360 wrote to memory of 4376	4360	Tiger Stock2.exe	82
PID 4360 wrote to memory of 4376	4360	Tiger Stock2.exe	82
PID 4376 wrote to memory of 2504	4376	Tiger Stock2.exe	83
PID 4376 wrote to memory of 2504	4376	Tiger Stock2.exe	83
PID 4376 wrote to memory of 2504	4376	Tiger Stock2.exe	83

C:\Users\Admin\AppData\Local\Temp\Tiger Stock2.exe
"C:\Users\Admin\AppData\Local\Temp\Tiger Stock2.exe"
1⤵
- Checks computer location settings
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4360
- C:\Users\Admin\AppData\Local\Temp\3582-490\Tiger Stock2.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\Tiger Stock2.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4376
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 864
    3⤵
    - Drops file in Windows directory
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2504

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

Filesize
2.4MB

MD5
8ffc3bdf4a1903d9e28b99d1643fc9c7

SHA1
919ba8594db0ae245a8abd80f9f3698826fc6fe5

SHA256
8268d3fefe8ca96a25a73690d14bacf644170ab5e9e70d2f8eeb350a4c83f9f6

SHA512
0b94ead97374d74eaee87e7614ddd3911d2cf66d4c49abbfd06b02c03e5dd56fd00993b4947e8a4bcd9d891fa39cab18cc6b61efc7d0812e91eb3aea9cd1a427

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\Tiger Stock2.exe

Filesize
3.8MB

MD5
a73b1f614ab4d1900868c64438fa9166

SHA1
c1f0f48615ec9827cee6c6b94689bfd7a8b58622

SHA256
0a9839dcc3bcb331d4a56c536a085dc27823c9631f53395d7caa6522ef007dcf

SHA512
802a551eecfcba9e957a63b15956eb3f1fdba322f97786dba6ffdf561560751ebbd89421ab59c6015fbc55e44b8dd0f13661947d56914115932262883a1130ce

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\Tiger Stock2.exe

Filesize
3.8MB

MD5
a73b1f614ab4d1900868c64438fa9166

SHA1
c1f0f48615ec9827cee6c6b94689bfd7a8b58622

SHA256
0a9839dcc3bcb331d4a56c536a085dc27823c9631f53395d7caa6522ef007dcf

SHA512
802a551eecfcba9e957a63b15956eb3f1fdba322f97786dba6ffdf561560751ebbd89421ab59c6015fbc55e44b8dd0f13661947d56914115932262883a1130ce

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\Tiger Stock2.exe

Filesize
3.8MB

MD5
a73b1f614ab4d1900868c64438fa9166

SHA1
c1f0f48615ec9827cee6c6b94689bfd7a8b58622

SHA256
0a9839dcc3bcb331d4a56c536a085dc27823c9631f53395d7caa6522ef007dcf

SHA512
802a551eecfcba9e957a63b15956eb3f1fdba322f97786dba6ffdf561560751ebbd89421ab59c6015fbc55e44b8dd0f13661947d56914115932262883a1130ce

Download Submit
memory/4360-231-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-217-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-229-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-230-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-232-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-233-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-235-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-236-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-237-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-238-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-240-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4360-242-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4376-146-0x0000000001950000-0x0000000001960000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

Loading Replay Monitor...

Downloads