neshta | b27b9d7337f3face7c17198879179b5d6ca0bfbf1e4270aaf27ae148366f6aea

General

Target

sample.exe
Size

5.4MB
MD5

3890b8381d0097b70797e484f40d0df3
SHA1

43f2196a11285902cab38264f64a0fd545161b44
SHA256

dfea487c68b65aafc445658ea66473de74997a46a9ebf5b0123d1031a2432305
SHA512

f3091690ce65f294b298014dbd4ee8e46f2de302d9aff3ba75c3caf801378debd840b65534f8a8edad58d72a92eb1119379f628e7bff86d63a738b79a945b722
SSDEEP

98304:U98aK6oZt3D1RkS5OS0yionLTKnVhoDXDDm4O5DBur00H6qfe:yrK6oLD1GN3Xo6sDX3lUlY0Y6qfe

Score

10^/10

neshta agilenet persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 4 IoCs

Processes:

resource	yara_rule
C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	family_neshta
behavioral2/memory/4584-113-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4584-114-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/4584-116-0x0000000000400000-0x000000000041B000-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
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:

sample.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation sample.exe
Executes dropped EXE 1 IoCs

Processes:

sample.exe

pid process

5008 sample.exe
Modifies system executable filetype association 2 TTPs 1 IoCs
persistence

Modify Registry
T1112

Change Default File Association
T1546.001

Processes:

sample.exe

description ioc process

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

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3571316656-3665257725-2415531812-1000\Control Panel\International\Geo\Nation	sample.exe

pid	process
5008	sample.exe

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

Obfuscated with Agile.Net obfuscator 1 IoCs

Detects use of the Agile.Net commercial obfuscator, which is capable of entity renaming and control flow obfuscation.

agilenet

Processes:

resource	yara_rule
C:\Users\Admin\AppData\Local\Temp\3582-490\sample.exe	agile_net

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
T1552.001

Drops file in Program Files directory 64 IoCs

Processes:

sample.exe

description	ioc	process
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	sample.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	sample.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\javaws.exe	sample.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	sample.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	sample.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13185~1.29\MICROS~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	sample.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\ELEVAT~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~3.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MID1AD~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MI9C33~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmprph.exe	sample.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	sample.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Oracle\Java\javapath\java.exe	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\PWAHEL~1.EXE	sample.exe
File opened for modification	C:\PROGRA~3\MICROS~1\CLICKT~1\{9AC08~1\INTEGR~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MICROS~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MI9C33~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	sample.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	sample.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~2.EXE	sample.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	sample.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpshare.exe	sample.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	sample.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF5AF~1\WINDOW~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MIA062~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MICROS~4.EXE	sample.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\setup_wm.exe	sample.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13147~1.37\MICROS~3.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MICROS~2.EXE	sample.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{D87AE~1\WINDOW~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	sample.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MI391D~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MICROS~3.EXE	sample.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13185~1.29\MIA062~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	sample.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	sample.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	sample.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	sample.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	sample.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	sample.exe

Drops file in Windows directory 1 IoCs

Processes:

sample.exe

description ioc process

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

System Information Discovery
T1082

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

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

T1012

System Information Discovery

T1082

Processes:

dw20.exe

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Modifies registry class 1 IoCs

Processes:

sample.exe

description ioc process

Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*" sample.exe
Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

dw20.exe

description pid process

Token: SeBackupPrivilege 3528 dw20.exe
Token: SeBackupPrivilege 3528 dw20.exe

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

description	pid	process
Token: SeBackupPrivilege	3528	dw20.exe
Token: SeBackupPrivilege	3528	dw20.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

sample.exesample.exe

description	pid	process	target process
PID 4584 wrote to memory of 5008	4584	sample.exe	sample.exe
PID 4584 wrote to memory of 5008	4584	sample.exe	sample.exe
PID 4584 wrote to memory of 5008	4584	sample.exe	sample.exe
PID 5008 wrote to memory of 3528	5008	sample.exe	dw20.exe
PID 5008 wrote to memory of 3528	5008	sample.exe	dw20.exe
PID 5008 wrote to memory of 3528	5008	sample.exe	dw20.exe

C:\Users\Admin\AppData\Local\Temp\sample.exe
"C:\Users\Admin\AppData\Local\Temp\sample.exe"
1⤵
- Checks computer location settings
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:4584

C:\Users\Admin\AppData\Local\Temp\3582-490\sample.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\sample.exe"
2⤵
- Executes dropped EXE
- Suspicious use of WriteProcessMemory
PID:5008

C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
dw20.exe -x -s 832
3⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious use of AdjustPrivilegeToken
PID:3528

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Privilege Escalation

Event Triggered Execution

1

T1546

Change Default File Association

1

T1546.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

3

T1012

System Information Discovery

4

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE
Filesize
86KB

MD5
3b73078a714bf61d1c19ebc3afc0e454

SHA1
9abeabd74613a2f533e2244c9ee6f967188e4e7e

SHA256
ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

SHA512
75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\sample.exe
Filesize
5.4MB

MD5
210394145368825b0ef292bcd95d5a1d

SHA1
387f356a147164ecd876117cb1253d38c83e85d5

SHA256
bd473bfba93df098187864352721b0386632cdce4c3368fbaae31b3d7bf3709c

SHA512
8afeffedf643a07de5a441456b1a23cce98c481420ba10450400a7b719de6091776c2e81416e6fb722aabac047039f2459f573eef16330601f7aee3598f79b50

Download Submit
memory/4584-113-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4584-114-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4584-116-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/5008-9-0x0000000073592000-0x0000000073593000-memory.dmp

Filesize
4KB

Download
memory/5008-10-0x0000000073590000-0x0000000073B41000-memory.dmp

Filesize
5.7MB

Download
memory/5008-11-0x0000000073590000-0x0000000073B41000-memory.dmp

Filesize
5.7MB

Download
memory/5008-18-0x0000000073590000-0x0000000073B41000-memory.dmp

Filesize
5.7MB

Download

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads