neshta | e1173c0d41cefba870204cb15a7f6a7825bfa3a9a7ce370d431ef922126b1de6

Analysis

max time kernel
156s
max time network
159s
platform
windows10-2004_x64
resource
win10v2004-20230221-en
resource tags

arch:x64arch:x86image:win10v2004-20230221-enlocale:en-usos:windows10-2004-x64system
submitted
14/06/2023, 12:40

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General

Target

Tiger Stock_20180517.exe
Size

3.3MB
MD5

4ea12c2a4b9d5d02f39d5e028f94dd17
SHA1

0459586d1fc703780a13a8a84aefc9ea8f076acb
SHA256

e1173c0d41cefba870204cb15a7f6a7825bfa3a9a7ce370d431ef922126b1de6
SHA512

ea5ecd4769e357392ac2c325b6569961d1aa8c112ed322f04cda558fbf685ea606ad0ca3c205693f2ba862d74a16b5aebaa001ce9255c9a643999ad0aa72742a
SSDEEP

49152:Kz32Lnt49YMJM4YKU6YIODur1/hcwxXVTrnW52hN:KiJWJM41UTDur1/uAlWI

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 13 IoCs

resource	yara_rule
behavioral2/files/0x000700000001f009-155.dat	family_neshta
behavioral2/memory/3888-167-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-229-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-230-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-231-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-232-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-234-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-236-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-237-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-238-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-239-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-241-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral2/memory/3888-242-0x0000000000400000-0x000000000041B000-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

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2805025096-2326403612-4231045514-1000\Control Panel\International\Geo\Nation	Tiger Stock_20180517.exe

Executes dropped EXE 1 IoCs

pid	Process
4320	Tiger Stock_20180517.exe

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\" %*"	Tiger Stock_20180517.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

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\FULLTR~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\msedge.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wabmig.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADOBEC~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MI9C33~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\Download\{F3C4F~1\13173~1.45\MICROS~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jucheck.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\IDENTI~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\INSTAL~1\setup.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MICROS~3.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroCEF\RdrCEF.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jaureg.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\NOTIFI~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MICROS~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\WINDOW~3\ACCESS~1\wordpad.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Eula.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\ADOBEA~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\wab.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpshare.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Java\JAVAUP~1\jusched.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ExtExport.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmlaunch.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROBR~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\ADelRCP.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\ARM\1.0\AdobeARM.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\wmpconfig.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\msedge.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\MSEDGE~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\Browser\WCCHRO~1\WCCHRO~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\READER~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\WOW_HE~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MI391D~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MICROS~2.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\MSEDGE~2.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\PWAHEL~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~3\Adobe\Setup\{AC76B~1\setup.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\LOGTRA~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MICROS~4.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\32BITM~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Edge\APPLIC~1\920902~1.67\BHO\IE_TO_~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\13173~1.45\MIA062~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\MICROS~1\EDGEUP~1\MicrosoftEdgeUpdate.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\arh.exe	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Adobe\ACROBA~1\Reader\plug_ins\PI_BRO~1\64BITM~1.EXE	Tiger Stock_20180517.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	Tiger Stock_20180517.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	Tiger Stock_20180517.exe
File created	C:\Windows\AppCompat\Programs\Amcache.hve.tmp	dw20.exe

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

System Information Discovery
T1082

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

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

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

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	Tiger Stock_20180517.exe

Suspicious use of AdjustPrivilegeToken 5 IoCs

description	pid	Process
Token: SeRestorePrivilege	2744	dw20.exe
Token: SeBackupPrivilege	2744	dw20.exe
Token: SeBackupPrivilege	2744	dw20.exe
Token: SeBackupPrivilege	2744	dw20.exe
Token: SeBackupPrivilege	2744	dw20.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3888 wrote to memory of 4320	3888	Tiger Stock_20180517.exe	82
PID 3888 wrote to memory of 4320	3888	Tiger Stock_20180517.exe	82
PID 3888 wrote to memory of 4320	3888	Tiger Stock_20180517.exe	82
PID 4320 wrote to memory of 2744	4320	Tiger Stock_20180517.exe	83
PID 4320 wrote to memory of 2744	4320	Tiger Stock_20180517.exe	83
PID 4320 wrote to memory of 2744	4320	Tiger Stock_20180517.exe	83

C:\Users\Admin\AppData\Local\Temp\Tiger Stock_20180517.exe
"C:\Users\Admin\AppData\Local\Temp\Tiger Stock_20180517.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:3888
- C:\Users\Admin\AppData\Local\Temp\3582-490\Tiger Stock_20180517.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\Tiger Stock_20180517.exe"
  2⤵
  - Executes dropped EXE
  - Suspicious use of WriteProcessMemory
  PID:4320
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 844
    3⤵
    - Drops file in Windows directory
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:2744

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

C:\PROGRA~2\Adobe\ACROBA~1\Reader\AcroRd32.exe

Filesize
2.4MB

MD5
8ffc3bdf4a1903d9e28b99d1643fc9c7

SHA1
919ba8594db0ae245a8abd80f9f3698826fc6fe5

SHA256
8268d3fefe8ca96a25a73690d14bacf644170ab5e9e70d2f8eeb350a4c83f9f6

SHA512
0b94ead97374d74eaee87e7614ddd3911d2cf66d4c49abbfd06b02c03e5dd56fd00993b4947e8a4bcd9d891fa39cab18cc6b61efc7d0812e91eb3aea9cd1a427

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\Tiger Stock_20180517.exe

Filesize
3.2MB

MD5
8798f899b14c2fa1520d40dee85d791c

SHA1
ceb101c480329da881cdf71d19be135073b90af0

SHA256
d3b6e2c46618b3f894e4fa6bfc61e010cd07717559da1b3e28fe90b162e969a5

SHA512
9af265cd5aa550b642031082ff7fd45eaab13c9bd4927c7cbeb597ce359e5348e46525116085b282056035ad65f3a113f74dbf34709ef6e67baaac83fdfd0505

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\Tiger Stock_20180517.exe

Filesize
3.2MB

MD5
8798f899b14c2fa1520d40dee85d791c

SHA1
ceb101c480329da881cdf71d19be135073b90af0

SHA256
d3b6e2c46618b3f894e4fa6bfc61e010cd07717559da1b3e28fe90b162e969a5

SHA512
9af265cd5aa550b642031082ff7fd45eaab13c9bd4927c7cbeb597ce359e5348e46525116085b282056035ad65f3a113f74dbf34709ef6e67baaac83fdfd0505

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\Tiger Stock_20180517.exe

Filesize
3.2MB

MD5
8798f899b14c2fa1520d40dee85d791c

SHA1
ceb101c480329da881cdf71d19be135073b90af0

SHA256
d3b6e2c46618b3f894e4fa6bfc61e010cd07717559da1b3e28fe90b162e969a5

SHA512
9af265cd5aa550b642031082ff7fd45eaab13c9bd4927c7cbeb597ce359e5348e46525116085b282056035ad65f3a113f74dbf34709ef6e67baaac83fdfd0505

Download Submit
memory/3888-231-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-167-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-229-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-230-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-232-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-234-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-236-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-237-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-238-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-239-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-241-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3888-242-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/4320-146-0x0000000001730000-0x0000000001740000-memory.dmp

Filesize
64KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads