neshta | f78477275d79d0eead0b62d3355df9be273518c54eeac3719a97823365cee858

Resubmissions

13/10/2022, 14:01

221013-rb3fwsgff810

13/10/2022, 13:49

221013-q47qmsgcd210

12/10/2022, 16:55

221012-ve9adscdaq10

Analysis

max time kernel
169s
max time network
175s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
12/10/2022, 16:55

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Report Analysis Logs

General

Target
4c596d32f75e3a84e48c36e8fc8025fd.exe
Size 488KB
Sample221012-ve9adscdaq
SHA256 f78477275d79d0eead0b62d3355df9be273518c54eeac3719a97823365cee858
MD5 4c596d32f75e3a84e48c36e8fc8025fd
SHA1 6a03c9d53e10c752b66b677e528fbcd1a70a6d0c
SHA512 0b159fe0b1766c27c89f65069fb3d33a59b3fc3efd7519629497df3ec07eda1b938819a2b0faa6cf2c305a736c3c93d409d42901c744644e11867a06bd7796c2
SSDEEP 6144:k9Cq6V1jfMRWYYIveLu6SE8jvx09SJTs7ci4aMC7WGS3swOco36deigavwVfe5K0:fV1DopYIe1SE8juQOf4RCw3dJTxuuB
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 1 IoCs

resource	yara_rule
behavioral2/files/0x000100000001dc4d-151.dat	family_neshta

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\" %*"	4c596d32f75e3a84e48c36e8fc8025fd.exe

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

Executes dropped EXE 1 IoCs

pid	Process
332	4c596d32f75e3a84e48c36e8fc8025fd.exe

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation	4c596d32f75e3a84e48c36e8fc8025fd.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
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13165~1.21\MI391D~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13165~1.21\MICROS~3.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GO664E~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\setup_wm.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13165~1.21\MICROS~4.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13165~1.21\MIA062~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\COOKIE~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13165~1.21\MI9C33~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13165~1.21\MICROS~2.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\WI8A19~1\ImagingDevices.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmplayer.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpshare.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	4c596d32f75e3a84e48c36e8fc8025fd.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	4c596d32f75e3a84e48c36e8fc8025fd.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4256	332	WerFault.exe	81

Modifies registry class 1 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	4c596d32f75e3a84e48c36e8fc8025fd.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
332	4c596d32f75e3a84e48c36e8fc8025fd.exe
332	4c596d32f75e3a84e48c36e8fc8025fd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	332	4c596d32f75e3a84e48c36e8fc8025fd.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1752 wrote to memory of 332	1752	4c596d32f75e3a84e48c36e8fc8025fd.exe	81
PID 1752 wrote to memory of 332	1752	4c596d32f75e3a84e48c36e8fc8025fd.exe	81
PID 1752 wrote to memory of 332	1752	4c596d32f75e3a84e48c36e8fc8025fd.exe	81

C:\Users\Admin\AppData\Local\Temp\4c596d32f75e3a84e48c36e8fc8025fd.exe
"C:\Users\Admin\AppData\Local\Temp\4c596d32f75e3a84e48c36e8fc8025fd.exe"
1⤵
- Modifies system executable filetype association
- Checks computer location settings
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1752
- C:\Users\Admin\AppData\Local\Temp\3582-490\4c596d32f75e3a84e48c36e8fc8025fd.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\4c596d32f75e3a84e48c36e8fc8025fd.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:332
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 332 -s 1304
    3⤵
    - Program crash
    PID:4256

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 332 -ip 332
1⤵
PID:4092

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

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

msedge.exe

Path C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
Size 3.2MB
SHA256 2b3aa9642b291932ba7f9f3d85221402a9d27078f56ef0e9c6bca633616e3873
MD5 5119e350591269f44f732b470024bb7c
SHA1 4ccd48e4c6ba6e162d1520760ee3063e93e2c014
SHA512 599b4ec673169d42a348d1117737b4ad4d7539574153df5a5c7689130c9ac5ff5cd00f3c8ec39adf32ff2b56be074081efcabb6456272c649703c3ea6cdaded4
SSDEEP 49152:F3Pouv6sYIwNX7nw908hDspRqHZZOAQ6N2EMTTKgrMlTZZ2y/BYv:vCLX7nkDnaDIZiv
MD5 SHA1 SHA512 SSDEEP

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4c596d32f75e3a84e48c36e8fc8025fd.exe

Path C:\Users\Admin\AppData\Local\Temp\3582-490\4c596d32f75e3a84e48c36e8fc8025fd.exe
Size 448KB
SHA256 388092169b96794dec2d6a0bcff4c60dfad79fdf5d49282cfe7bf6a6b59d75c0
MD5 0ac0c1ea046c89a6cc91855a4ce4df71
SHA1 16d53ce774b365a409fd959eb80e6367ccb34a3f
SHA512 19a46366a3653f45e3e770259850601dd8fe618d009170944fbf23bf7375f3e840f81fa8ef5cfe8fef4de12879fdff6dd99f42cf2357dc97e50b74ae667d7716
SSDEEP 6144:K5K+eC38P6V1jfMRWYYIveLu6SE8jvx09SJTs7ci4aMC7WGS3swOco36deigavwZ:KuuPV1DopYIe1SE8juQOf4RCw3dJT
MD5 SHA1 SHA512 SSDEEP

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4c596d32f75e3a84e48c36e8fc8025fd.exe

Path C:\Users\Admin\AppData\Local\Temp\3582-490\4c596d32f75e3a84e48c36e8fc8025fd.exe
Size 448KB
SHA256 388092169b96794dec2d6a0bcff4c60dfad79fdf5d49282cfe7bf6a6b59d75c0
MD5 0ac0c1ea046c89a6cc91855a4ce4df71
SHA1 16d53ce774b365a409fd959eb80e6367ccb34a3f
SHA512 19a46366a3653f45e3e770259850601dd8fe618d009170944fbf23bf7375f3e840f81fa8ef5cfe8fef4de12879fdff6dd99f42cf2357dc97e50b74ae667d7716
SSDEEP 6144:K5K+eC38P6V1jfMRWYYIveLu6SE8jvx09SJTs7ci4aMC7WGS3swOco36deigavwZ:KuuPV1DopYIe1SE8juQOf4RCw3dJT
MD5 SHA1 SHA512 SSDEEP

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memory/332-142-0x0000000004C80000-0x0000000004C92000-memory.dmp

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memory/332-144-0x0000000004CA0000-0x0000000004CDC000-memory.dmp

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memory/332-137-0x0000000000400000-0x0000000000475000-memory.dmp

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memory/332-138-0x0000000004D80000-0x0000000005324000-memory.dmp

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memory/332-139-0x0000000005950000-0x0000000005F68000-memory.dmp

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memory/332-140-0x00000000004AD000-0x00000000004E4000-memory.dmp

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memory/332-141-0x00000000007D0000-0x0000000000829000-memory.dmp

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memory/332-143-0x0000000005330000-0x000000000543A000-memory.dmp

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memory/332-136-0x00000000007D0000-0x0000000000829000-memory.dmp

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memory/332-145-0x0000000005690000-0x00000000056F6000-memory.dmp

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memory/332-146-0x00000000064B0000-0x0000000006542000-memory.dmp

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memory/332-147-0x0000000007560000-0x00000000075D6000-memory.dmp

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memory/332-148-0x0000000006880000-0x000000000689E000-memory.dmp

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memory/332-149-0x00000000068C0000-0x0000000006A82000-memory.dmp

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memory/332-150-0x0000000006AA0000-0x0000000006FCC000-memory.dmp

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memory/332-135-0x00000000004AD000-0x00000000004E4000-memory.dmp

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memory/332-152-0x0000000007760000-0x00000000077B0000-memory.dmp

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memory/332-153-0x00000000004AD000-0x00000000004E4000-memory.dmp

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memory/332-154-0x0000000000400000-0x0000000000475000-memory.dmp

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