neshta | 4ee624771e86858f0d52191d967b79b414a55442f26f6d4c2fee32e6ed8e4417

General

Target

7109532.exe
Size

16KB
MD5

5b9a8f77a9dbad6b5da98718d07d7f0e
SHA1

daebc35d775c47bae2de48c8c9c6c4214b49e513
SHA256

4ee624771e86858f0d52191d967b79b414a55442f26f6d4c2fee32e6ed8e4417
SHA512

89e2502553e5eb89647711bdbfb2cc04c003ed9e7192e787e9b581ac00ad887f4e118e1ea3ea0f1ecb98500a0f1ac3e3358050715fab287f6803184e637908a2

Score

10^/10

neshta persistence spyware

Malware Config

Signatures

Detect Neshta payload 6 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1160-72-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1160-73-0x00000000004080E4-mapping.dmp	family_neshta
behavioral1/memory/1160-74-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1160-76-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1160-77-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1160-79-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

InstallUtil.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	InstallUtil.exe

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

Processes:

InstallUtil.exe

pid process

1160 InstallUtil.exe

pid	process
1160	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

7109532.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\Jkfhfl = "\"C:\\Users\\Admin\\AppData\\Roaming\\Pjhotop\\Jkfhfl.exe\""	7109532.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

7109532.exe

description pid process target process

PID 900 set thread context of 1160 900 7109532.exe InstallUtil.exe

description	pid	process	target process
PID 900 set thread context of 1160	900	7109532.exe	InstallUtil.exe

Drops file in Program Files directory 64 IoCs

Processes:

InstallUtil.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GO664E~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	InstallUtil.exe

Drops file in Windows directory 1 IoCs

Processes:

InstallUtil.exe

description ioc process

File opened for modification C:\Windows\svchost.com InstallUtil.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

description	ioc	process
File opened for modification	C:\Windows\svchost.com	InstallUtil.exe

Modifies registry class 1 IoCs

Processes:

InstallUtil.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	InstallUtil.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

powershell.exe7109532.exe

pid process

1324 powershell.exe
900 7109532.exe
900 7109532.exe
900 7109532.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

7109532.exepowershell.exe

description pid process

Token: SeDebugPrivilege 900 7109532.exe
Token: SeDebugPrivilege 1324 powershell.exe

pid	process
1324	powershell.exe
900	7109532.exe
900	7109532.exe
900	7109532.exe

description	pid	process
Token: SeDebugPrivilege	900	7109532.exe
Token: SeDebugPrivilege	1324	powershell.exe

Suspicious use of WriteProcessMemory 26 IoCs

Processes:

7109532.exe

description	pid	process	target process
PID 900 wrote to memory of 1324	900	7109532.exe	powershell.exe
PID 900 wrote to memory of 1324	900	7109532.exe	powershell.exe
PID 900 wrote to memory of 1324	900	7109532.exe	powershell.exe
PID 900 wrote to memory of 1324	900	7109532.exe	powershell.exe
PID 900 wrote to memory of 1604	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1604	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1604	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1604	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1604	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1604	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1604	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe
PID 900 wrote to memory of 1160	900	7109532.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\7109532.exe
"C:\Users\Admin\AppData\Local\Temp\7109532.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:900
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAANgA=
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1324
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  PID:1604
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  C:\Windows\Microsoft.NET\Framework\v4.0.30319\InstallUtil.exe
  2⤵
  - Modifies system executable filetype association
  - Loads dropped DLL
  - Drops file in Program Files directory
  - Drops file in Windows directory
  - Modifies registry class
  PID:1160

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

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

Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
memory/900-54-0x0000000001130000-0x000000000113A000-memory.dmp

Filesize
40KB

Download
memory/900-55-0x0000000075C61000-0x0000000075C63000-memory.dmp

Filesize
8KB

Download
memory/900-56-0x0000000005480000-0x0000000005592000-memory.dmp

Filesize
1.1MB

Download
memory/900-57-0x0000000004DB0000-0x0000000004E34000-memory.dmp

Filesize
528KB

Download
memory/900-58-0x0000000005720000-0x00000000057B2000-memory.dmp

Filesize
584KB

Download
memory/1160-72-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-69-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-63-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-64-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-66-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-67-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-68-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-79-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-70-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-77-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-73-0x00000000004080E4-mapping.dmp

Download
memory/1160-74-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1160-76-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1324-61-0x000000006FB50000-0x00000000700FB000-memory.dmp

Filesize
5.7MB

Download
memory/1324-59-0x0000000000000000-mapping.dmp

Download
memory/1324-62-0x000000006FB50000-0x00000000700FB000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads