neshta | 9fc4f26a0088a9b28d0a5a4c83d4cee2ee9aeeafa3bd465a10a3c2a6d54b781a

Analysis

max time kernel
86s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
09-06-2023 10:55

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General

Target

0tMUNlnakQsCKNd.exe
Size

864KB
MD5

7d424fcd2cfd26574af4acdb87cbe15a
SHA1

d1f2636c0a0a493cbc7522350de7abef29ae4e9e
SHA256

bb741e7ac48085e964e7fdfbd19b97a7376712b09c540a95c9a5f1872034908b
SHA512

5f78ddb361164d642b041db6d26c727519840c28a7f34e9ae8ec9ab3613981717cfec36ab509c04f6fe8b013f25aed8ac7864fe8ab0ff7fd33dc991d1ef9a820
SSDEEP

24576:bUlRu4OyqGUL8ANdsS8hMrVl0nhwcnBH:bUlRu4NqGo8ANuS8hMrr09

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 6 IoCs

resource	yara_rule
behavioral1/memory/1840-69-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1840-70-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1840-71-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1840-73-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1840-157-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1840-159-0x0000000000400000-0x000000000041B000-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

Loads dropped DLL 1 IoCs

pid	Process
1840	0tMUNlnakQsCKNd.exe

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\" %*"	0tMUNlnakQsCKNd.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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1324 set thread context of 1840	1324	0tMUNlnakQsCKNd.exe	29

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	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	0tMUNlnakQsCKNd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	0tMUNlnakQsCKNd.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	0tMUNlnakQsCKNd.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\" %*"	0tMUNlnakQsCKNd.exe

Suspicious behavior: EnumeratesProcesses 5 IoCs

pid	Process
1324	0tMUNlnakQsCKNd.exe
1324	0tMUNlnakQsCKNd.exe
1324	0tMUNlnakQsCKNd.exe
1324	0tMUNlnakQsCKNd.exe
1476	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1324	0tMUNlnakQsCKNd.exe
Token: SeDebugPrivilege	1476	powershell.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1324 wrote to memory of 1476	1324	0tMUNlnakQsCKNd.exe	27
PID 1324 wrote to memory of 1476	1324	0tMUNlnakQsCKNd.exe	27
PID 1324 wrote to memory of 1476	1324	0tMUNlnakQsCKNd.exe	27
PID 1324 wrote to memory of 1476	1324	0tMUNlnakQsCKNd.exe	27
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29
PID 1324 wrote to memory of 1840	1324	0tMUNlnakQsCKNd.exe	29

C:\Users\Admin\AppData\Local\Temp\0tMUNlnakQsCKNd.exe
"C:\Users\Admin\AppData\Local\Temp\0tMUNlnakQsCKNd.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1324
- 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\0tMUNlnakQsCKNd.exe"
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1476
- C:\Users\Admin\AppData\Local\Temp\0tMUNlnakQsCKNd.exe
  "C:\Users\Admin\AppData\Local\Temp\0tMUNlnakQsCKNd.exe"
  2⤵
  - Loads dropped DLL
  - Modifies system executable filetype association
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Modifies registry class
  PID:1840

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

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
547KB

MD5
c843c7bcf3c31a9c4c9071c44f687cdb

SHA1
b7def045a979abc02a9f564d5660af9113fa9f6a

SHA256
19c3d41335209bc1efaf9ff7f6d171aa335453a689179b5d0b08f0767c81f2ee

SHA512
513cd8cdddb56cc4dd41855adacae8b5ae74e5e2266de9025e7b0a27979ea1a67bded236a4f7b2c03517de8db147ab13d5360c32998c088d282efb15fdcc4101

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/1324-54-0x0000000000CE0000-0x0000000000DBE000-memory.dmp

Filesize
888KB

Download
memory/1324-55-0x0000000004F00000-0x0000000004F40000-memory.dmp

Filesize
256KB

Download
memory/1324-56-0x0000000000370000-0x0000000000384000-memory.dmp

Filesize
80KB

Download
memory/1324-57-0x0000000004F00000-0x0000000004F40000-memory.dmp

Filesize
256KB

Download
memory/1324-58-0x00000000003C0000-0x00000000003CC000-memory.dmp

Filesize
48KB

Download
memory/1324-59-0x00000000050F0000-0x0000000005164000-memory.dmp

Filesize
464KB

Download
memory/1324-60-0x0000000004700000-0x000000000473E000-memory.dmp

Filesize
248KB

Download
memory/1476-84-0x0000000002590000-0x00000000025D0000-memory.dmp

Filesize
256KB

Download
memory/1476-83-0x0000000002590000-0x00000000025D0000-memory.dmp

Filesize
256KB

Download
memory/1840-66-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-73-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-67-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-68-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/1840-69-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-70-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-71-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-65-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-64-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-63-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-62-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-61-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-157-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1840-159-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download