neshta | 2bf85967fb9126459be466a7ecbdbaa32bd1ec69e6cbee24a295852fff807b05

max time kernel
219s
max time network
247s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
26-11-2022 11:26

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General

Target

af95f41f73e451c4d1f5fd8acdd0c863.exe
Size

1.1MB
MD5

af95f41f73e451c4d1f5fd8acdd0c863
SHA1

55c03b064063d15af1eb9bdb766bd90ec9b6f8c4
SHA256

2bf85967fb9126459be466a7ecbdbaa32bd1ec69e6cbee24a295852fff807b05
SHA512

f50d479038f16a60b0ef4f8670d0dcbf7016c96ef12fae08bc9448fed2d61a679844815c48c2b1a65464ba71c006d9ae63c2baf47c7ee3398323ed3077a31bb3
SSDEEP

24576:mRBrzwX0YmJI8DRnCD4jtnT8Q1r0ly78ipwR7H:gJzdnm4lT8Q1r0pieR7H

Score

10^/10

neshta xmrig miner persistence spyware upx

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1042

Processes:

af95f41f73e451c4d1f5fd8acdd0c863.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	af95f41f73e451c4d1f5fd8acdd0c863.exe

Neshta
Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.
persistence spyware neshta
xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
miner xmrig

XMRig Miner payload 1 IoCs

miner

Processes:

resource	yara_rule
behavioral3/memory/1696-136-0x0000000000400000-0x0000000000871000-memory.dmp	xmrig

Executes dropped EXE 1 IoCs

Processes:

af95f41f73e451c4d1f5fd8acdd0c863.exe

pid process

1696 af95f41f73e451c4d1f5fd8acdd0c863.exe

pid	process
1696	af95f41f73e451c4d1f5fd8acdd0c863.exe

UPX packed file 4 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe	upx
C:\Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe	upx
behavioral3/memory/1696-135-0x0000000000400000-0x0000000000871000-memory.dmp	upx
behavioral3/memory/1696-136-0x0000000000400000-0x0000000000871000-memory.dmp	upx

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

Processes:

af95f41f73e451c4d1f5fd8acdd0c863.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	af95f41f73e451c4d1f5fd8acdd0c863.exe

Drops file in Program Files directory 31 IoCs

Processes:

af95f41f73e451c4d1f5fd8acdd0c863.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOF5E2~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~4.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GO664E~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe

Drops file in Windows directory 1 IoCs

Processes:

af95f41f73e451c4d1f5fd8acdd0c863.exe

description ioc process

File opened for modification C:\Windows\svchost.com af95f41f73e451c4d1f5fd8acdd0c863.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	af95f41f73e451c4d1f5fd8acdd0c863.exe

Modifies registry class 1 IoCs

Processes:

af95f41f73e451c4d1f5fd8acdd0c863.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	af95f41f73e451c4d1f5fd8acdd0c863.exe

Suspicious use of WriteProcessMemory 3 IoCs

Processes:

af95f41f73e451c4d1f5fd8acdd0c863.exe

description	pid	process	target process
PID 3532 wrote to memory of 1696	3532	af95f41f73e451c4d1f5fd8acdd0c863.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
PID 3532 wrote to memory of 1696	3532	af95f41f73e451c4d1f5fd8acdd0c863.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe
PID 3532 wrote to memory of 1696	3532	af95f41f73e451c4d1f5fd8acdd0c863.exe	af95f41f73e451c4d1f5fd8acdd0c863.exe

C:\Users\Admin\AppData\Local\Temp\af95f41f73e451c4d1f5fd8acdd0c863.exe
"C:\Users\Admin\AppData\Local\Temp\af95f41f73e451c4d1f5fd8acdd0c863.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:3532

C:\Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe"
2⤵
- Executes dropped EXE
PID:1696

Network

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Change Default File Association

T1042

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe
Filesize
1.1MB

MD5
80ff3475582de86c9132364ac9f973c0

SHA1
cc1f51b642d6cf47ee809d1015f174a0adb06841

SHA256
612aa000654882bbb324a233f7599cb4e1eb6fa74c9c29f8cbcd49f158c0d214

SHA512
a65374d87bd1bae1a106c423dffd91936892cb76ee0dace833e600baaef65f06c865811ba3882aa7b69033b127355fed2d3770d81f2efe5c6ef954aaa5be72bf

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\af95f41f73e451c4d1f5fd8acdd0c863.exe
Filesize
1.1MB

MD5
80ff3475582de86c9132364ac9f973c0

SHA1
cc1f51b642d6cf47ee809d1015f174a0adb06841

SHA256
612aa000654882bbb324a233f7599cb4e1eb6fa74c9c29f8cbcd49f158c0d214

SHA512
a65374d87bd1bae1a106c423dffd91936892cb76ee0dace833e600baaef65f06c865811ba3882aa7b69033b127355fed2d3770d81f2efe5c6ef954aaa5be72bf

Download Submit
memory/1696-132-0x0000000000000000-mapping.dmp

Download
memory/1696-135-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download
memory/1696-136-0x0000000000400000-0x0000000000871000-memory.dmp

Filesize
4.4MB

Download