neshta | 164eed30da0e82bcd633c4942b1496175c2e223e0addb7f4b980af6b3c2c207c

Analysis

max time kernel
121s
max time network
126s
platform
windows7_x64
resource
win7-20241010-en
resource tags

arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
submitted
23-01-2025 00:27

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General

Target

fasy333.exe
Size

5.2MB
MD5

3b4bbdec0ff22e4eb97d988377da9397
SHA1

7509983497f64b102ef4a58aeb461697e2e776af
SHA256

164eed30da0e82bcd633c4942b1496175c2e223e0addb7f4b980af6b3c2c207c
SHA512

67e0794227bbc1b425b42e1f5e8478cab7d5941139f0d234f0d1712f4f150901044e0fd1b42f4b3d113992e8f73195285099762d113281800f147e5fd1373679
SSDEEP

98304:xQfqgXTHx+fcztondv+AyHi7QKCUGF542lpAVx6kfXe+sXx3IaLQ:xQXhztUqH0J/WrlpIx6AXDsXyaLQ

Score

10^/10

neshta discovery execution persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 6 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010314-12.dat	family_neshta
behavioral1/memory/1612-97-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1612-108-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1612-109-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1612-110-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1612-112-0x0000000000400000-0x000000000041B000-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

Drops startup file 2 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\anydesk.exe.exe	Powershell.exe
File opened for modification	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\anydesk.exe.exe	Powershell.exe

Executes dropped EXE 1 IoCs

pid	Process
2168	fasy333.exe

Loads dropped DLL 2 IoCs

pid	Process
1612	fasy333.exe
1612	fasy333.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\" %*"	fasy333.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2168 set thread context of 2068	2168	fasy333.exe	33

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	fasy333.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	fasy333.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	fasy333.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	fasy333.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	fasy333.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	fasy333.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	fasy333.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1652	Powershell.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
3028	2068	WerFault.exe	33

System Location Discovery: System Language Discovery 1 TTPs 4 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	fasy333.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fasy333.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.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\" %*"	fasy333.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
1652	Powershell.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1652	Powershell.exe

Suspicious use of WriteProcessMemory 21 IoCs

description	pid	Process	procid_target
PID 1612 wrote to memory of 2168	1612	fasy333.exe	30
PID 1612 wrote to memory of 2168	1612	fasy333.exe	30
PID 1612 wrote to memory of 2168	1612	fasy333.exe	30
PID 1612 wrote to memory of 2168	1612	fasy333.exe	30
PID 2168 wrote to memory of 1652	2168	fasy333.exe	31
PID 2168 wrote to memory of 1652	2168	fasy333.exe	31
PID 2168 wrote to memory of 1652	2168	fasy333.exe	31
PID 2168 wrote to memory of 1652	2168	fasy333.exe	31
PID 2168 wrote to memory of 2068	2168	fasy333.exe	33
PID 2168 wrote to memory of 2068	2168	fasy333.exe	33
PID 2168 wrote to memory of 2068	2168	fasy333.exe	33
PID 2168 wrote to memory of 2068	2168	fasy333.exe	33
PID 2168 wrote to memory of 2068	2168	fasy333.exe	33
PID 2168 wrote to memory of 2068	2168	fasy333.exe	33
PID 2168 wrote to memory of 2068	2168	fasy333.exe	33
PID 2168 wrote to memory of 2068	2168	fasy333.exe	33
PID 2168 wrote to memory of 2068	2168	fasy333.exe	33
PID 2068 wrote to memory of 3028	2068	MSBuild.exe	34
PID 2068 wrote to memory of 3028	2068	MSBuild.exe	34
PID 2068 wrote to memory of 3028	2068	MSBuild.exe	34
PID 2068 wrote to memory of 3028	2068	MSBuild.exe	34

C:\Users\Admin\AppData\Local\Temp\fasy333.exe
"C:\Users\Admin\AppData\Local\Temp\fasy333.exe"
1⤵
- Loads dropped DLL
- 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:1612
- C:\Users\Admin\AppData\Local\Temp\3582-490\fasy333.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\fasy333.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2168
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\Powershell.exe
    "Powershell.exe" -ExecutionPolicy Bypass -command Copy-Item 'C:\Users\Admin\AppData\Local\Temp\3582-490\fasy333.exe' 'C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\anydesk.exe.exe'
    3⤵
    - Drops startup file
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1652
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:2068
  - - C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -u -p 2068 -s 592
      4⤵
      Program crash
      PID:3028

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

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

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

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Downloads

C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

Filesize
547KB

MD5
cf6c595d3e5e9667667af096762fd9c4

SHA1
9bb44da8d7f6457099cb56e4f7d1026963dce7ce

SHA256
593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

SHA512
ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

Download Submit
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
\Users\Admin\AppData\Local\Temp\3582-490\fasy333.exe

Filesize
5.2MB

MD5
d1f2d79b8371d265f235e3d7cfa2989a

SHA1
708e10a2b8cb505b678da9c089bec92a35a0fdf2

SHA256
d6f48704eaf98408102ce49e22481376b0595a3cc3e13085654f44d32034ffa1

SHA512
130c43770c19defb8740623133e547367bfe4caabc343b36dc288b910460f20d58090a4d0b936d1cddfdee3b85ae50ea128d8ae12dba7ba78f0d10a5c752db7a

Download Submit
memory/1612-97-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1612-112-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1612-110-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1612-109-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1612-108-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2068-106-0x0000000000240000-0x0000000000248000-memory.dmp

Filesize
32KB

Download
memory/2068-102-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/2068-95-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/2068-92-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/2068-103-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/2068-101-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/2068-100-0x00000000FFFDE000-0x00000000FFFDF000-memory.dmp

Filesize
4KB

Download
memory/2068-93-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/2068-98-0x0000000000400000-0x00000000008EA000-memory.dmp

Filesize
4.9MB

Download
memory/2068-104-0x0000000000230000-0x000000000023E000-memory.dmp

Filesize
56KB

Download
memory/2168-90-0x00000000007B0000-0x00000000007BA000-memory.dmp

Filesize
40KB

Download
memory/2168-105-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/2168-87-0x0000000074980000-0x000000007506E000-memory.dmp

Filesize
6.9MB

Download
memory/2168-14-0x0000000005140000-0x0000000005644000-memory.dmp

Filesize
5.0MB

Download
memory/2168-13-0x0000000000E10000-0x000000000134A000-memory.dmp

Filesize
5.2MB

Download
memory/2168-9-0x000000007498E000-0x000000007498F000-memory.dmp

Filesize
4KB

Download