neshta | 1553c72c054079021dafe5e75485d40a54190c0ef703c1f3cff2562f672dd083

General

Target

Monkey Island Crypter/Island.exe
Size

88KB
MD5

d9a9ea1c848793138f91e029122a3c64
SHA1

95b4c2d7c98948ce1773e90ec4740fe132e34350
SHA256

da2aacbd755c284e1122aac8fd3ca5772cce04a13c5c62119770aa1cf3687d87
SHA512

73f290a45cfe68aba845297222ada09160fc607f0d1d6dfb0bebae9918295df4127a425a7ff70fa9c4c4ea49a4e430788f436cf7c234ea65bf828d2bb422f6cb
SSDEEP

768:eyxqjQl/EMQt4Oei7RwsHxyP7nbxzOQdJ1zOXhN2Mnsk2yg3fZ9+Rj3qDHLxdc0:JxqjQ+P04wsmJCmzOm9+Z3qDFS

Score

10^/10

neshta persistence spyware stealer

Malware Config

Signatures

Modifies system executable filetype association 2 TTPs 1 IoCs
persistence

Modify Registry
T1112

Change Default File Association
T1042

Processes:

Island.exe

description ioc process

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

Processes:

Island.exe

pid process

300 Island.exe
Loads dropped DLL 3 IoCs

Processes:

Island.exe

pid process

1812 Island.exe
1812 Island.exe
1812 Island.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

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

pid	process
300	Island.exe

pid	process
1812	Island.exe
1812	Island.exe
1812	Island.exe

Drops file in Program Files directory 64 IoCs

Processes:

Island.exe

description	ioc	process
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	Island.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	Island.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~3.EXE	Island.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOBD5D~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	Island.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	Island.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~1.EXE	Island.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{61087~1\VCREDI~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	Island.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	Island.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	Island.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	Island.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	Island.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	Island.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	Island.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	Island.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	Island.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.71\GOOGLE~2.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	Island.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	Island.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	Island.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	Island.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	Island.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	Island.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	Island.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	Island.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	Island.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	Island.exe

Drops file in Windows directory 1 IoCs

Processes:

Island.exe

description ioc process

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

System Information Discovery
T1082
Modifies registry class 1 IoCs

Processes:

Island.exe

description ioc process

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

Processes:

Island.exe

pid process

300 Island.exe

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

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

pid	process
300	Island.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

Island.exe

description	pid	process	target process
PID 1812 wrote to memory of 300	1812	Island.exe	Island.exe
PID 1812 wrote to memory of 300	1812	Island.exe	Island.exe
PID 1812 wrote to memory of 300	1812	Island.exe	Island.exe
PID 1812 wrote to memory of 300	1812	Island.exe	Island.exe

C:\Users\Admin\AppData\Local\Temp\Monkey Island Crypter\Island.exe
"C:\Users\Admin\AppData\Local\Temp\Monkey Island Crypter\Island.exe"
1⤵
- Modifies system executable filetype association
- Loads dropped DLL
- Drops file in Program Files directory
- Drops file in Windows directory
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1812

C:\Users\Admin\AppData\Local\Temp\3582-490\Island.exe
"C:\Users\Admin\AppData\Local\Temp\3582-490\Island.exe"
2⤵
- Executes dropped EXE
- Suspicious use of SetWindowsHookEx
PID:300

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Change Default File Association

1

T1042

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials in Files

1

T1081

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Data from Local System

1

T1005

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\3582-490\Island.eXe
Filesize
48KB

MD5
3fb99bcb5b10ce65e610e31d65e9a1f0

SHA1
8de8b2df22b0960188fe40500b639dd4a1783ea2

SHA256
7a88f2aad67a720229dcc368bbf2ef3851380741b17602d4855af2d383ed4234

SHA512
3f798bddb7ac08dcec8d3984ab7eaf5b4cfe452e51e53153a1f8d26daa02193c5e5432fe5b7080ab1547597d2d50002688abce85c6a207afea47942e4a0dc2a7

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\Island.exe
Filesize
48KB

MD5
3fb99bcb5b10ce65e610e31d65e9a1f0

SHA1
8de8b2df22b0960188fe40500b639dd4a1783ea2

SHA256
7a88f2aad67a720229dcc368bbf2ef3851380741b17602d4855af2d383ed4234

SHA512
3f798bddb7ac08dcec8d3984ab7eaf5b4cfe452e51e53153a1f8d26daa02193c5e5432fe5b7080ab1547597d2d50002688abce85c6a207afea47942e4a0dc2a7

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\Local\Temp\3582-490\Island.exe
Filesize
48KB

MD5
3fb99bcb5b10ce65e610e31d65e9a1f0

SHA1
8de8b2df22b0960188fe40500b639dd4a1783ea2

SHA256
7a88f2aad67a720229dcc368bbf2ef3851380741b17602d4855af2d383ed4234

SHA512
3f798bddb7ac08dcec8d3984ab7eaf5b4cfe452e51e53153a1f8d26daa02193c5e5432fe5b7080ab1547597d2d50002688abce85c6a207afea47942e4a0dc2a7

Download Submit
\Users\Admin\AppData\Local\Temp\3582-490\Island.exe
Filesize
48KB

MD5
3fb99bcb5b10ce65e610e31d65e9a1f0

SHA1
8de8b2df22b0960188fe40500b639dd4a1783ea2

SHA256
7a88f2aad67a720229dcc368bbf2ef3851380741b17602d4855af2d383ed4234

SHA512
3f798bddb7ac08dcec8d3984ab7eaf5b4cfe452e51e53153a1f8d26daa02193c5e5432fe5b7080ab1547597d2d50002688abce85c6a207afea47942e4a0dc2a7

Download Submit
memory/300-57-0x0000000000000000-mapping.dmp

Download
memory/1812-54-0x00000000753F1000-0x00000000753F3000-memory.dmp

Filesize
8KB

Download

Analysis

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