neshta | 31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c

Analysis

max time kernel
118s
max time network
119s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
02/11/2024, 21:13

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General

Target

31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
Size

200KB
MD5

b7eb6597ef5235f90e9051e43c1ce094
SHA1

1d1dad66478610edaff849cdedc8d32481f1005f
SHA256

31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c
SHA512

3c12470422cb097f25bb1b3f4bb057d0e4c061248019618c6b69e0a1af8f95c3eb411518889264d7bbb6626968b733749843216556b5cc3952746b7ab37f60ad
SSDEEP

1536:JxqjQ+P04wsmJCHQCmC+WzV7Q3v1A59UV/aqm2IMZ1RFbfxFTxtkFDoh382JPgmP:sr85CHLkRiqEEhxlZJr85C

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

Detect Neshta payload 3 IoCs

resource	yara_rule
behavioral1/files/0x0001000000010318-13.dat	family_neshta
behavioral1/memory/1852-93-0x0000000000400000-0x000000000041B000-memory.dmp	family_neshta
behavioral1/memory/1852-95-0x0000000000400000-0x000000000041B000-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
Neshta family
neshta

Executes dropped EXE 1 IoCs

pid	Process
2916	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe

Loads dropped DLL 10 IoCs

pid	Process
1852	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
1852	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
2324	WerFault.exe
2324	WerFault.exe
2324	WerFault.exe
2324	WerFault.exe
2324	WerFault.exe
2324	WerFault.exe
2324	WerFault.exe
1852	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe

Modifies system executable filetype association 2 TTPs 1 IoCs

persistence

Modify Registry

T1112

Change Default File Association

T1546.001

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\exefile\shell\open\command\ = "C:\\Windows\\svchost.com \"%1\" %*"	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe

Reads user/profile data of web browsers 3 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

Credentials from Web Browsers
T1555.003

Drops file in Program Files directory 64 IoCs

description	ioc	Process
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\UNINST~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpconfig.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBEU~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~3.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\1033\ONELEV.EXE	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe

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

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2324	2916	WerFault.exe	28

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.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\" %*"	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1852 wrote to memory of 2916	1852	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe	28
PID 1852 wrote to memory of 2916	1852	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe	28
PID 1852 wrote to memory of 2916	1852	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe	28
PID 1852 wrote to memory of 2916	1852	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe	28
PID 2916 wrote to memory of 2324	2916	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe	29
PID 2916 wrote to memory of 2324	2916	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe	29
PID 2916 wrote to memory of 2324	2916	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe	29
PID 2916 wrote to memory of 2324	2916	31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe	29

C:\Users\Admin\AppData\Local\Temp\31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
"C:\Users\Admin\AppData\Local\Temp\31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe"
1⤵
- Loads dropped DLL
- Modifies system executable filetype association
- Drops file in Program Files directory
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1852
- C:\Users\Admin\AppData\Local\Temp\3582-490\31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:2916
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2916 -s 148
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2324

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Privilege Escalation

Event Triggered Execution

T1546

Change Default File Association

T1546.001

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials from Password Stores

T1555

Credentials from Web Browsers

T1555.003

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\MSOCache\ALLUSE~1\{90140~1\dwtrig20.exe

Filesize
547KB

MD5
cf6c595d3e5e9667667af096762fd9c4

SHA1
9bb44da8d7f6457099cb56e4f7d1026963dce7ce

SHA256
593e60cc30ae0789448547195af77f550387f6648d45847ea244dd0dd7abf03d

SHA512
ff4f789df9e6a6d0fbe12b3250f951fcf11e857906c65e96a30bb46266e7e1180d6103a03db2f3764e0d1346b2de7afba8259ba080057e4a268e45e8654dfa80

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\31ef087387c535405aae17a28631062907c1f8afa152c8859adac155c0a1c12c.exe

Filesize
160KB

MD5
b79e28eb09ffc78ecbe42e39b22a2cfe

SHA1
7bd0109dd6f11ff77d89ca110b5e5127dc467812

SHA256
638530d5b14937ec6597780ce83037fcd5ee5b04de187103cd21d81c114a1d26

SHA512
7d935597c61bfe6420684cf72ec261eadf72083f9767a00681a57234c9c6eaf1d88e06328147eb29de591573fd88d028f730631d27c7e0eb525061ab900908ce

Download Submit
memory/1852-93-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/1852-95-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads