neshta | 20be2bfafe25515cbc74fb7dca7344948286a01589eaddf8b78331bb1874331b

Analysis

max time kernel
121s
max time network
128s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
15/10/2024, 06:22

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General

Target

asdfgtrew.exe
Size

810.6MB
MD5

e7bcb3c5f9bac76514648913d592b835
SHA1

4bdfee4f86b94775101ee30162519f4432d6fd66
SHA256

20be2bfafe25515cbc74fb7dca7344948286a01589eaddf8b78331bb1874331b
SHA512

06e71c4acde96647f9c5ffa679997be1218112d039576f3b965826b55f76f2f8cb6d96c1794a2d9e69ff3fcd6babe9a9eac442d088e4d4857cec9d69bc1eb9ea
SSDEEP

24576:j5EHxxiEkkd+S94jg/DsILCrhR0vk/ip9x:jSnisjOas28hRlaR

Score

10^/10

neshta discovery execution persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 2 IoCs

resource	yara_rule
behavioral1/memory/2840-34-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/2840-35-0x0000000000400000-0x000000000041B000-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

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

execution

PowerShell

T1059.001

pid	Process
2096	powershell.exe
2716	powershell.exe

Loads dropped DLL 1 IoCs

pid	Process
2840	asdfgtrew.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\" %*"	asdfgtrew.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 2120 set thread context of 2840	2120	asdfgtrew.exe	37

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	asdfgtrew.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	asdfgtrew.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	asdfgtrew.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 5 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	asdfgtrew.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	asdfgtrew.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\" %*"	asdfgtrew.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2792	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2096	powershell.exe
2716	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2096	powershell.exe
Token: SeDebugPrivilege	2716	powershell.exe

Suspicious use of WriteProcessMemory 24 IoCs

description	pid	Process	procid_target
PID 2120 wrote to memory of 2096	2120	asdfgtrew.exe	31
PID 2120 wrote to memory of 2096	2120	asdfgtrew.exe	31
PID 2120 wrote to memory of 2096	2120	asdfgtrew.exe	31
PID 2120 wrote to memory of 2096	2120	asdfgtrew.exe	31
PID 2120 wrote to memory of 2716	2120	asdfgtrew.exe	33
PID 2120 wrote to memory of 2716	2120	asdfgtrew.exe	33
PID 2120 wrote to memory of 2716	2120	asdfgtrew.exe	33
PID 2120 wrote to memory of 2716	2120	asdfgtrew.exe	33
PID 2120 wrote to memory of 2792	2120	asdfgtrew.exe	35
PID 2120 wrote to memory of 2792	2120	asdfgtrew.exe	35
PID 2120 wrote to memory of 2792	2120	asdfgtrew.exe	35
PID 2120 wrote to memory of 2792	2120	asdfgtrew.exe	35
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37
PID 2120 wrote to memory of 2840	2120	asdfgtrew.exe	37

C:\Users\Admin\AppData\Local\Temp\asdfgtrew.exe
"C:\Users\Admin\AppData\Local\Temp\asdfgtrew.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2120
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\asdfgtrew.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2096
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\gaiEDRmnrZS.exe"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2716
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\gaiEDRmnrZS" /XML "C:\Users\Admin\AppData\Local\Temp\tmpCD2E.tmp"
  2⤵
  - System Location Discovery: System Language Discovery
  - Scheduled Task/Job: Scheduled Task
  PID:2792
- C:\Users\Admin\AppData\Local\Temp\asdfgtrew.exe
  "C:\Users\Admin\AppData\Local\Temp\asdfgtrew.exe"
  2⤵
  - 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
  PID:2840

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Persistence

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

Privilege Escalation

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Scheduled Task/Job

T1053

Scheduled Task

T1053.005

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

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Downloads

C:\MSOCache\ALLUSE~1\{9A861~1\ose.exe

Filesize
186KB

MD5
89a4220dc1f5a1af04efaee522061a40

SHA1
78560ff7c316459fb4cb649ac54c524d4685670d

SHA256
2a1115d6a7a785ef56712bf2f79bf4d117641e87a93b055d3fd09bf7f9b09789

SHA512
0636fdebd908fdf3c44db7120eac087e92e83ed4a494691001bce4ae5a8f46fd5a1dda0ac5570b62622d805084aeb1e96a33b8e6696cf4e86f300ad2eb1e7af4

Download Submit
C:\Users\Admin\AppData\Local\Temp\tmpCD2E.tmp

Filesize
1KB

MD5
cccf3f9f1a0c94b3f4436923d87f7ebb

SHA1
226f87974f48cfc83e173102b2301693dd64f1f7

SHA256
236fe501bb4d184a985aa0556e14c76229420858c66170a4ecbeca6426900921

SHA512
8456f3f9f3d8620a6f710005c2d37f9cb4a91b739cfd8490cc5c04c5da707bb6dacd7c5c12ea23b23a7711fd0f27b9df7e0b1782b2947fd5b4f7f07274d225d2

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\d93f411851d7c929.customDestinations-ms

Filesize
7KB

MD5
57b40a29d23a34891aaecb31ba9b2835

SHA1
e40e6a873b29a8b97105e6799ca08d8b855cdb09

SHA256
b8af382543beabdccad66336f3f84da83fe12a89af1ded0506fc713034839c58

SHA512
b28fcb3b7b63e3fd17217b63102d55a9fba0b03604bd7c01456154fd54ca807b961f9d2bd884a96af129e80d7e913708b2a48a6878ae2c7cfaeb2dc699a0f028

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

Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
memory/2120-36-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2120-1-0x0000000000D70000-0x0000000000E4A000-memory.dmp

Filesize
872KB

Download
memory/2120-2-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2120-3-0x00000000004F0000-0x0000000000508000-memory.dmp

Filesize
96KB

Download
memory/2120-4-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/2120-5-0x00000000746C0000-0x0000000074DAE000-memory.dmp

Filesize
6.9MB

Download
memory/2120-6-0x0000000004D40000-0x0000000004DE2000-memory.dmp

Filesize
648KB

Download
memory/2120-0-0x00000000746CE000-0x00000000746CF000-memory.dmp

Filesize
4KB

Download
memory/2840-21-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2840-33-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2840-35-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2840-31-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2840-29-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2840-27-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2840-25-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2840-34-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2840-23-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2840-20-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download