neshta | 949894004a0d75ff5336829c5db76dac3fe13917f265e93b3fea57ea12d91cb8

Analysis

max time kernel
142s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
08/05/2023, 14:17

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General

Target

OXI_Joiner.exe
Size

664KB
MD5

fdedf270247992ec6b17c119b5775329
SHA1

7778f9dac30513a7521396ad43108ad98dfd9716
SHA256

949894004a0d75ff5336829c5db76dac3fe13917f265e93b3fea57ea12d91cb8
SHA512

a4a2b9a27a1d4457b5b2bccf27c02619a2ab031f16d9e72e9c7756ed6429604166dc0a626c7ffdb4ae89823787a0e941f57b23d94f941000edd0932bae35506f
SSDEEP

12288:IdCXaLCUh6WMI/ILtj8mxMgF0fr0WTdfZ0CIFw8nSktQdWgv0tpVtR3lYgUYO:I4XeZjyCFTdfLG5nSkAWgcTVts9

Score

10^/10

neshta persistence spyware stealer upx

Malware Config

Signatures

Detect Neshta payload 8 IoCs

resource	yara_rule
behavioral2/files/0x000800000001eff4-150.dat	family_neshta
behavioral2/memory/1664-223-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/1664-225-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/1664-227-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/1664-229-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/1664-231-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/1664-233-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/1664-236-0x0000000000400000-0x000000000041B000-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-1-5-21-2548970870-3691742953-3895070203-1000\Control Panel\International\Geo\Nation	OXI_Joiner.exe

Executes dropped EXE 1 IoCs

pid	Process
3868	OXI_Joiner.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\" %*"	OXI_Joiner.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

UPX packed file 5 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/files/0x000600000002312b-137.dat	upx
behavioral2/files/0x000600000002312b-144.dat	upx
behavioral2/files/0x000600000002312b-142.dat	upx
behavioral2/memory/3868-145-0x0000000000400000-0x0000000000527000-memory.dmp	upx
behavioral2/memory/3868-224-0x0000000000400000-0x0000000000527000-memory.dmp	upx

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13173~1.45\MICROS~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\MicrosoftEdgeUpdate.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MI391D~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MICROS~2.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MI9C33~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\setup_wm.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MICROS~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MICROS~4.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\COOKIE~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	OXI_Joiner.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	OXI_Joiner.exe

Drops file in Windows directory 1 IoCs

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

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

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

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1664 wrote to memory of 3868	1664	OXI_Joiner.exe	82
PID 1664 wrote to memory of 3868	1664	OXI_Joiner.exe	82
PID 1664 wrote to memory of 3868	1664	OXI_Joiner.exe	82

C:\Users\Admin\AppData\Local\Temp\OXI_Joiner.exe
"C:\Users\Admin\AppData\Local\Temp\OXI_Joiner.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:1664
- C:\Users\Admin\AppData\Local\Temp\3582-490\OXI_Joiner.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\OXI_Joiner.exe"
  2⤵
  - Executes dropped EXE
  PID:3868

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

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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\OXI_Joiner.exe

Filesize
624KB

MD5
a90b8780668de3b228cf621bf39e89f3

SHA1
9f127e6d1c6b0fa323419fd85065ca6c7b62ed3a

SHA256
50b002c5b0fbbd4d87e6a874da7affab7665f728d8270abf781552353d504dae

SHA512
95e3c0163e76994d7ee6fbf3d8050fa07a6cbd2c75fd488e3c0dfb804d30ef2b1afe0d371fd92a1828f1e83c4cf43b2c0fae819282a9c9e137caf53e2b0e1ff3

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

Filesize
624KB

MD5
a90b8780668de3b228cf621bf39e89f3

SHA1
9f127e6d1c6b0fa323419fd85065ca6c7b62ed3a

SHA256
50b002c5b0fbbd4d87e6a874da7affab7665f728d8270abf781552353d504dae

SHA512
95e3c0163e76994d7ee6fbf3d8050fa07a6cbd2c75fd488e3c0dfb804d30ef2b1afe0d371fd92a1828f1e83c4cf43b2c0fae819282a9c9e137caf53e2b0e1ff3

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

Filesize
624KB

MD5
a90b8780668de3b228cf621bf39e89f3

SHA1
9f127e6d1c6b0fa323419fd85065ca6c7b62ed3a

SHA256
50b002c5b0fbbd4d87e6a874da7affab7665f728d8270abf781552353d504dae

SHA512
95e3c0163e76994d7ee6fbf3d8050fa07a6cbd2c75fd488e3c0dfb804d30ef2b1afe0d371fd92a1828f1e83c4cf43b2c0fae819282a9c9e137caf53e2b0e1ff3

Download Submit
memory/1664-227-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1664-223-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1664-225-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1664-229-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1664-231-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1664-233-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1664-236-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3868-147-0x0000000000B40000-0x0000000000B41000-memory.dmp

Filesize
4KB

Download
memory/3868-224-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download
memory/3868-145-0x0000000000400000-0x0000000000527000-memory.dmp

Filesize
1.2MB

Download