neshta | cfa59023a6820fccfcd995c92427f3052bd161586efdc8aced27a2fa30dfbfeb

Analysis

max time kernel
149s
max time network
128s
platform
windows10-2004_x64
resource
win10v2004-20220901-en
resource tags

arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
submitted
14/09/2022, 12:00

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General

Target

675d64751eefe9a2af4254a4f6957ac5.exe
Size

384KB
MD5

675d64751eefe9a2af4254a4f6957ac5
SHA1

6f96c406bb3acb1f7af7b120f43fcd8f526cb321
SHA256

cfa59023a6820fccfcd995c92427f3052bd161586efdc8aced27a2fa30dfbfeb
SHA512

6c7c140de71f7dbe292243c8d4c99a673b73e0852eafd7a083e410eeafd1c31216fa19528965d37079932d87ea9ac7e789fa77915f06c27d327925c10f204d64
SSDEEP

6144:jyH7xOc6H5c6HcT66vlmrbAFM9TXR1SHOCW4gGrPP5PbwL54jl59TBWAzNhALap7:ja74XTfCWTGrPxbs54x59TkVLapjj8M7

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 2 IoCs

resource	yara_rule
behavioral2/files/0x0002000000022dec-139.dat	family_neshta
behavioral2/files/0x0002000000022dec-141.dat	family_neshta

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\" %*"	675d64751eefe9a2af4254a4f6957ac5.exe

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta

Executes dropped EXE 4 IoCs

pid	Process
5036	svchost.exe
3136	675d64751eefe9a2af4254a4f6957ac5.exe
1416	svchost.exe
1408	675d64751eefe9a2af4254a4f6957ac5.exe

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-1-5-21-929662420-1054238289-2961194603-1000\Control Panel\International\Geo\Nation	675d64751eefe9a2af4254a4f6957ac5.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\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\chrome.exe	svchost.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\Installer\setup.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javah.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jrunscript.exe	svchost.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jdb.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jstack.exe	svchost.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\InspectorOfficeGadget.exe	svchost.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\appvcleaner.exe	svchost.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\VSTO\10.0\VSTOInstaller.exe	svchost.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jabswitch.exe	svchost.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\java.exe	svchost.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeC2RClient.exe	svchost.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\notification_helper.exe	svchost.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\extcheck.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jdeps.exe	svchost.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javap.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jmap.exe	svchost.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13167~1.21\MI9C33~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Common Files\microsoft shared\ClickToRun\OfficeClickToRun.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\idlj.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jarsigner.exe	svchost.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javac.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\javafxpackager.exe	svchost.exe
File opened for modification	C:\Program Files\Java\jdk1.8.0_66\bin\jhat.exe	svchost.exe
File opened for modification	C:\Program Files\7-Zip\7zFM.exe	svchost.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13167~1.21\MICROS~4.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Program Files\Google\Chrome\Application\89.0.4389.114\elevation_service.exe	svchost.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13167~1.21\MICROS~1.EXE	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	675d64751eefe9a2af4254a4f6957ac5.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\svchost.exe	675d64751eefe9a2af4254a4f6957ac5.exe
File opened for modification	C:\Windows\svchost.com	675d64751eefe9a2af4254a4f6957ac5.exe

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

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\" %*"	675d64751eefe9a2af4254a4f6957ac5.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 1912 wrote to memory of 5036	1912	675d64751eefe9a2af4254a4f6957ac5.exe	84
PID 1912 wrote to memory of 5036	1912	675d64751eefe9a2af4254a4f6957ac5.exe	84
PID 1912 wrote to memory of 5036	1912	675d64751eefe9a2af4254a4f6957ac5.exe	84
PID 5036 wrote to memory of 3136	5036	svchost.exe	85
PID 5036 wrote to memory of 3136	5036	svchost.exe	85
PID 5036 wrote to memory of 3136	5036	svchost.exe	85
PID 3136 wrote to memory of 1408	3136	675d64751eefe9a2af4254a4f6957ac5.exe	87
PID 3136 wrote to memory of 1408	3136	675d64751eefe9a2af4254a4f6957ac5.exe	87
PID 3136 wrote to memory of 1408	3136	675d64751eefe9a2af4254a4f6957ac5.exe	87

C:\Users\Admin\AppData\Local\Temp\675d64751eefe9a2af4254a4f6957ac5.exe
"C:\Users\Admin\AppData\Local\Temp\675d64751eefe9a2af4254a4f6957ac5.exe"
1⤵
- Drops file in Windows directory
- Suspicious use of WriteProcessMemory
PID:1912
- C:\Windows\svchost.exe
  "C:\Windows\svchost.exe" "C:\Users\Admin\AppData\Local\Temp\675d64751eefe9a2af4254a4f6957ac5.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:5036
- - C:\Users\Admin\AppData\Local\Temp\675d64751eefe9a2af4254a4f6957ac5.exe
    "C:\Users\Admin\AppData\Local\Temp\675d64751eefe9a2af4254a4f6957ac5.exe"
    3⤵
    - Modifies system executable filetype association
    - Executes dropped EXE
    - Checks computer location settings
    - Drops file in Program Files directory
    - Drops file in Windows directory
    - Modifies registry class
    - Suspicious use of WriteProcessMemory
    PID:3136
  - - C:\Users\Admin\AppData\Local\Temp\3582-490\675d64751eefe9a2af4254a4f6957ac5.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\675d64751eefe9a2af4254a4f6957ac5.exe"
      4⤵
      Executes dropped EXE
      PID:1408

C:\Windows\svchost.exe
C:\Windows\svchost.exe
1⤵
- Executes dropped EXE
- Drops file in Program Files directory
PID:1416

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:\Users\Admin\AppData\Local\Temp\3582-490\675d64751eefe9a2af4254a4f6957ac5.exe

Filesize
308KB

MD5
3800a751f42521cef0dcbb71cfc3d751

SHA1
e440644ff9153259e8b75dc847959fe4d05deb14

SHA256
4711a133dd40644509ff34dd24b5710bfe014c29a4c57bf80b2b5b3a5efae57d

SHA512
7d87e213afa5d9121ade09731b6c46cdb0b659b38e95b46890cc4818a3d8d3fffa7c0a257bad24300f6c7dd978045c3fddd7498386a6a935a39aac1120db06e5

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\675d64751eefe9a2af4254a4f6957ac5.exe

Filesize
308KB

MD5
3800a751f42521cef0dcbb71cfc3d751

SHA1
e440644ff9153259e8b75dc847959fe4d05deb14

SHA256
4711a133dd40644509ff34dd24b5710bfe014c29a4c57bf80b2b5b3a5efae57d

SHA512
7d87e213afa5d9121ade09731b6c46cdb0b659b38e95b46890cc4818a3d8d3fffa7c0a257bad24300f6c7dd978045c3fddd7498386a6a935a39aac1120db06e5

Download Submit
C:\Users\Admin\AppData\Local\Temp\675d64751eefe9a2af4254a4f6957ac5.exe

Filesize
348KB

MD5
7261d4747ef2cdf19a79deb39a1b7ace

SHA1
b64ec1a2e39fbea735ca434154ea9f3e1ad1d70d

SHA256
be9b998016024ccd05b7aae335dc4fbca32ed54dfb6087b9cdf75b1e6f72a004

SHA512
8b046efb4fc5c679ab476011fb97b055ac23a464cf31fdf055a9bc784e6092c37e2f160aa511744457b0a72de80b071ff7dc74f9805a5049cd6f1d44dd32cd0b

Download Submit
C:\Users\Admin\AppData\Local\Temp\675d64751eefe9a2af4254a4f6957ac5.exe

Filesize
348KB

MD5
7261d4747ef2cdf19a79deb39a1b7ace

SHA1
b64ec1a2e39fbea735ca434154ea9f3e1ad1d70d

SHA256
be9b998016024ccd05b7aae335dc4fbca32ed54dfb6087b9cdf75b1e6f72a004

SHA512
8b046efb4fc5c679ab476011fb97b055ac23a464cf31fdf055a9bc784e6092c37e2f160aa511744457b0a72de80b071ff7dc74f9805a5049cd6f1d44dd32cd0b

Download Submit
C:\Windows\svchost.exe

Filesize
35KB

MD5
9e3c13b6556d5636b745d3e466d47467

SHA1
2ac1c19e268c49bc508f83fe3d20f495deb3e538

SHA256
20af03add533a6870d524a7c4753b42bfceb56cddd46016c051e23581ba743f8

SHA512
5a07ba8a7fcb15f64b129fada2621252b8bc37eb34d4f614c075c064f8ac0d367301eba0c32c5e28b8aa633f6ab604f0dfcc363b34734ce0207ef0d4e8817c4b

Download Submit
C:\Windows\svchost.exe

Filesize
35KB

MD5
9e3c13b6556d5636b745d3e466d47467

SHA1
2ac1c19e268c49bc508f83fe3d20f495deb3e538

SHA256
20af03add533a6870d524a7c4753b42bfceb56cddd46016c051e23581ba743f8

SHA512
5a07ba8a7fcb15f64b129fada2621252b8bc37eb34d4f614c075c064f8ac0d367301eba0c32c5e28b8aa633f6ab604f0dfcc363b34734ce0207ef0d4e8817c4b

Download Submit
C:\Windows\svchost.exe

Filesize
35KB

MD5
9e3c13b6556d5636b745d3e466d47467

SHA1
2ac1c19e268c49bc508f83fe3d20f495deb3e538

SHA256
20af03add533a6870d524a7c4753b42bfceb56cddd46016c051e23581ba743f8

SHA512
5a07ba8a7fcb15f64b129fada2621252b8bc37eb34d4f614c075c064f8ac0d367301eba0c32c5e28b8aa633f6ab604f0dfcc363b34734ce0207ef0d4e8817c4b

Download Submit