neshta | 0978712dbec1d91834dea2ca5f5e2115f32ab576ac57d40ff0a1ea337fecdae9

Analysis

max time kernel
390s
max time network
1118s
platform
windows10-ltsc 2021_x64
resource
win10ltsc2021-20241023-en
resource tags

arch:x64arch:x86image:win10ltsc2021-20241023-enlocale:en-usos:windows10-ltsc 2021-x64system
submitted
06-12-2024 19:43

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

massexe/masscan.exe
Size

273KB
MD5

bcaa226fd557ba6ca18628e1ae3c6053
SHA1

2cb78f3f36b27bc692c4856bd6cb20e2cebdb344
SHA256

f7f2af6f4dd9d0af03e6af3aba685969ec9ed22295055882e571bef3e96bbc4e
SHA512

de0bac7d4cf9d2a00bb880e04d788d3bb21a243864b1df089547c2f4b20e7e18e8b3ce2f784b44c61561e4dccf350ea01e65dd9f943e98f833879fcb1db4a65a
SSDEEP

6144:k9wmz/EkPt1xeHP9mCeswbjnK6swOp9cLKQaNTiL:Iz/Ek1eHP9KPf698hMTY

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 6 IoCs

resource	yara_rule
behavioral3/files/0x0002000000042a21-16.dat	family_neshta
behavioral3/memory/1848-79-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral3/memory/1848-80-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral3/memory/1848-81-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral3/memory/1848-82-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral3/memory/1848-84-0x0000000000400000-0x000000000041B000-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

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-1-5-21-1669812756-2240353048-2660728061-1000\Control Panel\International\Geo\Nation	masscan.exe

Executes dropped EXE 1 IoCs

pid	Process
3116	masscan.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\" %*"	masscan.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 62 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MI9C33~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	masscan.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	masscan.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaw.exe	masscan.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~3.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~2.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~2.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~3.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~4.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	masscan.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GO664E~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	masscan.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\COOKIE~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe	masscan.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	masscan.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	masscan.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{63880~1\WINDOW~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE	masscan.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpshare.exe	masscan.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{D87AE~1\WINDOW~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF5AF~1\WINDOW~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~4.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	masscan.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MID1AD~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	masscan.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	masscan.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\java.exe	masscan.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaws.exe	masscan.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOBD5D~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13195~1.25\MICROS~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	masscan.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	masscan.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\setup_wm.exe	masscan.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOF5E2~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	masscan.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.371\GOOGLE~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	masscan.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MIA062~1.EXE	masscan.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.exe	masscan.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	masscan.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	masscan.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	masscan.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\" %*"	masscan.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1848 wrote to memory of 3116	1848	masscan.exe	80
PID 1848 wrote to memory of 3116	1848	masscan.exe	80
PID 1848 wrote to memory of 3116	1848	masscan.exe	80

C:\Users\Admin\AppData\Local\Temp\massexe\masscan.exe
"C:\Users\Admin\AppData\Local\Temp\massexe\masscan.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:1848
- C:\Users\Admin\AppData\Local\Temp\3582-490\masscan.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\masscan.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:3116

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

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

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Program Files (x86)\Common Files\Oracle\Java\javapath_target_38421\javaw.exe

Filesize
325KB

MD5
892cf4fc5398e07bf652c50ef2aa3b88

SHA1
c399e55756b23938057a0ecae597bd9dbe481866

SHA256
e2262c798729169f697e6c30e5211cde604fd8b14769311ff4ea81abba8c2781

SHA512
f16a9e4b1150098c5936ec6107c36d47246dafd5a43e9f4ad9a31ecab69cc789c768691fa23a1440fae7f6e93e8e62566b5c86f7ed6bb4cfe26368149ea8c167

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

Filesize
232KB

MD5
c50f3b0b23dfe5c66561bb9297bf7bbc

SHA1
5f14241aea174608a7c85127fdad042d7382277d

SHA256
de903a297afc249bb7d68fef6c885a4c945d740a487fe3e9144a8499a7094131

SHA512
33c557c53b4f65cde67bc0f6a7952822d194e0da262aa7d44c1d527ed300043ad1c06002cd42e69ad98ad2c7b62aa98d66ac0aa211ddfa97dde3e737da3f768f

Download Submit
memory/1848-79-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1848-80-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1848-81-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1848-82-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1848-84-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3116-12-0x0000000001390000-0x00000000013A8000-memory.dmp

Filesize
96KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads