neshta | 0dc0c7008345a2e24a5db520b0b3c8ea64feadeb7306bab846b91000a0fa650b

Analysis

max time kernel
120s
max time network
124s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
12-03-2024 17:38

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General

Target

file.exe
Size

2.6MB
MD5

2694402a15bf74cb83e092b8423092a2
SHA1

34da23de12e08166c024d81e8f633ff89f6a3405
SHA256

0dc0c7008345a2e24a5db520b0b3c8ea64feadeb7306bab846b91000a0fa650b
SHA512

d10293c89a132df344917d9b38a6107a7b6b731ee2da9b444704124ff0a824e9cf544bcdc9b4bad6f464650ac7860a7c9a7bc4d48fe94f061587552d2f5859a6
SSDEEP

49152:i53QoQ/1HPZVpvkUFokbF1OSyYWcWvv5vYaf1409GkMVz:iw/pZVpJF9p1OSyncUvpYCA9

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

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

Loads dropped DLL 1 IoCs

pid	Process
2944	RegAsm.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\" %*"	RegAsm.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
T1552.001

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2896 set thread context of 2944	2896	file.exe	29

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	RegAsm.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	RegAsm.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	RegAsm.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	RegAsm.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\" %*"	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2944	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2896	file.exe

Suspicious use of WriteProcessMemory 12 IoCs

description	pid	Process	procid_target
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29
PID 2896 wrote to memory of 2944	2896	file.exe	29

C:\Users\Admin\AppData\Local\Temp\file.exe
"C:\Users\Admin\AppData\Local\Temp\file.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2896
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Loads dropped DLL
  - Modifies system executable filetype association
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  PID:2944

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

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
185KB

MD5
f2b9e5f3eb889a1ddb5bea74135adefd

SHA1
e092713e944ef17f05686b577861744664d924d1

SHA256
c25f06971a1a4a2b39382b58fcc5c33240bb5b51d323eda8b3949a4d7a30b734

SHA512
9232a07288eb14c21e7b29b51a9362f186b95e7dc64b1a78df629b5c298b39d554f9172fb949b9a824d5689aefec921ee87566b78e4e90c5472a1db3e8db3848

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

Filesize
172KB

MD5
f0c81cd5ec4ce0aa9259e4a2f8d4444f

SHA1
fa255650fdc3d8b825f705cc8e29dd58dadf4e22

SHA256
698d102e79af77f384bfdcdb51c7fcb135d3b500fa906eae57766ea9f71892a1

SHA512
e8182fd851970e2c894a8a41dbe85c6c33d629fd0e9586818c24fb3f85803b297ea71924889f1341c5b9e7807e0e9b115d5a6a97fba2e04420663c13cecadbf0

Download Submit
memory/2896-15-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/2896-1-0x0000000074340000-0x0000000074A2E000-memory.dmp

Filesize
6.9MB

Download
memory/2896-2-0x0000000004F00000-0x0000000004F40000-memory.dmp

Filesize
256KB

Download
memory/2896-7-0x0000000002A50000-0x0000000004A50000-memory.dmp

Filesize
32.0MB

Download
memory/2896-0-0x00000000013A0000-0x000000000164A000-memory.dmp

Filesize
2.7MB

Download
memory/2944-54-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/2944-39-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2944-10-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2944-12-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/2944-16-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/2944-18-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/2944-24-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/2944-47-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2944-49-0x0000000000190000-0x0000000000191000-memory.dmp

Filesize
4KB

Download
memory/2944-5-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/2944-52-0x00000000001A0000-0x00000000001A1000-memory.dmp

Filesize
4KB

Download
memory/2944-44-0x0000000000180000-0x0000000000181000-memory.dmp

Filesize
4KB

Download
memory/2944-42-0x0000000000180000-0x0000000000181000-memory.dmp

Filesize
4KB

Download
memory/2944-9-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/2944-37-0x0000000000170000-0x0000000000171000-memory.dmp

Filesize
4KB

Download
memory/2944-34-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2944-32-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2944-30-0x0000000000160000-0x0000000000161000-memory.dmp

Filesize
4KB

Download
memory/2944-29-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2944-26-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/2944-6-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/2944-27-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2944-23-0x0000000000150000-0x0000000000151000-memory.dmp

Filesize
4KB

Download
memory/2944-8-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/2944-138-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download
memory/2944-140-0x0000000000400000-0x00000000007EE000-memory.dmp

Filesize
3.9MB

Download