neshta | 4d6bee9938b85e65fabba0b920efcff479e565ebbdd91a7d6a631fa7475e9f74

General

Target

1.exe
Size

851KB
MD5

286099dac2f03c7764d9fc6d8c5e02e2
SHA1

eedd56af4f225f991eb63f37597d7ab6e4abeac7
SHA256

4d6bee9938b85e65fabba0b920efcff479e565ebbdd91a7d6a631fa7475e9f74
SHA512

63cf51afd8a4cf8c8afdb498dbf589b12b86c8b978313e9a41ad9dbf1f511cac55b938fa479b8d76e1330df7b7dd6c5be94759165467eb234d6dbc5380edc3b9

Score

10^/10

neshta persistence spyware

Malware Config

Signatures

Detect Neshta payload 7 IoCs

Processes:

resource	yara_rule
behavioral1/memory/1748-71-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1748-72-0x00000000004080E4-mapping.dmp	family_neshta
behavioral1/memory/1748-73-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1748-75-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1748-76-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1748-80-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1748-81-0x0000000000400000-0x000000000041B000-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 2 IoCs

Processes:

InstallUtil.exe

pid process

1748 InstallUtil.exe
1748 InstallUtil.exe

pid	process
1748	InstallUtil.exe
1748	InstallUtil.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

1.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3440072777-2118400376-1759599358-1000\Software\Microsoft\Windows\CurrentVersion\Run\Ddhnvo = "\"C:\\Users\\Admin\\AppData\\Roaming\\Wirkpkfbm\\Ddhnvo.exe\""	1.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

1.exe

description pid process target process

PID 1276 set thread context of 1748 1276 1.exe InstallUtil.exe

description	pid	process	target process
PID 1276 set thread context of 1748	1276	1.exe	InstallUtil.exe

Drops file in Program Files directory 64 IoCs

Processes:

InstallUtil.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.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\Reader\Eula.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\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~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\MICROS~1\Office14\MSTORE.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\INTERN~1\ielowutil.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\Adobe\Updater6\ADOBEU~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\OFFICE14\FLTLDR.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\WINDOW~1\WinMail.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.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\INTERN~1\ieinstal.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.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\COMMON~1\MICROS~1\OFFICE14\LICLUA.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\ADOBEC~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.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\DISABL~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\IECONT~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.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\MICROS~1\Office14\MSOUC.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.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~3.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\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\WINDOW~1\wab.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\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.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\SETUPF~1\{AC76B~1\Setup.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\INTERN~1\iexplore.exe	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	InstallUtil.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.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 3 IoCs

Processes:

1.exepowershell.exe

pid process

1276 1.exe
1900 powershell.exe
1276 1.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

1.exepowershell.exe

description pid process

Token: SeDebugPrivilege 1276 1.exe
Token: SeDebugPrivilege 1900 powershell.exe

pid	process
1276	1.exe
1900	powershell.exe
1276	1.exe

description	pid	process
Token: SeDebugPrivilege	1276	1.exe
Token: SeDebugPrivilege	1900	powershell.exe

Suspicious use of WriteProcessMemory 19 IoCs

Processes:

1.exe

description	pid	process	target process
PID 1276 wrote to memory of 1900	1276	1.exe	powershell.exe
PID 1276 wrote to memory of 1900	1276	1.exe	powershell.exe
PID 1276 wrote to memory of 1900	1276	1.exe	powershell.exe
PID 1276 wrote to memory of 1900	1276	1.exe	powershell.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe
PID 1276 wrote to memory of 1748	1276	1.exe	InstallUtil.exe

C:\Users\Admin\AppData\Local\Temp\1.exe
"C:\Users\Admin\AppData\Local\Temp\1.exe"
1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1276
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -enc UwB0AGEAcgB0AC0AUwBsAGUAZQBwACAALQBTAGUAYwBvAG4AZABzACAAMQAwAA==
  2⤵
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1900
- 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:1748

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

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Downloads

C:\Users\Admin\AppData\Roaming\WIRKPK~1\Ddhnvo.exe

Filesize
851KB

MD5
286099dac2f03c7764d9fc6d8c5e02e2

SHA1
eedd56af4f225f991eb63f37597d7ab6e4abeac7

SHA256
4d6bee9938b85e65fabba0b920efcff479e565ebbdd91a7d6a631fa7475e9f74

SHA512
63cf51afd8a4cf8c8afdb498dbf589b12b86c8b978313e9a41ad9dbf1f511cac55b938fa479b8d76e1330df7b7dd6c5be94759165467eb234d6dbc5380edc3b9

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\Roaming\WIRKPK~1\Ddhnvo.exe

Filesize
851KB

MD5
286099dac2f03c7764d9fc6d8c5e02e2

SHA1
eedd56af4f225f991eb63f37597d7ab6e4abeac7

SHA256
4d6bee9938b85e65fabba0b920efcff479e565ebbdd91a7d6a631fa7475e9f74

SHA512
63cf51afd8a4cf8c8afdb498dbf589b12b86c8b978313e9a41ad9dbf1f511cac55b938fa479b8d76e1330df7b7dd6c5be94759165467eb234d6dbc5380edc3b9

Download Submit
memory/1276-54-0x00000000002A0000-0x000000000037A000-memory.dmp

Filesize
872KB

Download
memory/1276-55-0x0000000000470000-0x00000000004E4000-memory.dmp

Filesize
464KB

Download
memory/1276-56-0x00000000020A0000-0x0000000002132000-memory.dmp

Filesize
584KB

Download
memory/1276-57-0x00000000765D1000-0x00000000765D3000-memory.dmp

Filesize
8KB

Download
memory/1748-76-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-73-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-65-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-67-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-68-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-66-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-69-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-71-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-72-0x00000000004080E4-mapping.dmp

Download
memory/1748-63-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-75-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-62-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-81-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1748-80-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1900-58-0x0000000000000000-mapping.dmp

Download
memory/1900-60-0x000000006FDF0000-0x000000007039B000-memory.dmp

Filesize
5.7MB

Download
memory/1900-61-0x000000006FDF0000-0x000000007039B000-memory.dmp

Filesize
5.7MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads