neshta | b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66

Analysis

max time kernel
120s
max time network
121s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
25/11/2024, 03:02

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General

Target

b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
Size

3.1MB
MD5

6a9617db3cf482788d7b5bc8b1096051
SHA1

dc8677f30538ad417d76df55a6ec46db940fa84b
SHA256

b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66
SHA512

5d9f68318b78786c5cabc3e159ade11749cb4e9b6f8af81cb69c13a6431f07ef149f8e7c17e881fb59417aaa59986016cdd52f8236fbe1fcad994d45dd0c71e3
SSDEEP

98304:/MHcPfjSlwSeNKuxDFL0hQNFqyQGaMrmhwJttwjEX2BsqEHuy2t0rJx48x64D:/MHcPmlwSeNKuxDFL0hQNFqyQGaMrmh+

Score

10^/10

neshta discovery persistence spyware stealer

Malware Config

Signatures

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
1076	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe

Loads dropped DLL 2 IoCs

pid	Process
3056	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
3056	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.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\" %*"	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.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\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\VSTO\10.0\VSTOIN~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\SETUPF~1\{AC76B~1\Setup.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~4.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\SELFCERT.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{57A73~1\VC_RED~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\INFOPATH.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{EF6B0~1\VCREDI~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\A3DUTI~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MOZILL~1\MAINTE~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOBD5D~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\VPREVIEW.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\WINDOW~4\ImagingDevices.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\LICLUA.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\NAMECO~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\POWERPNT.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 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	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.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\" %*"	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 3056 wrote to memory of 1076	3056	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe	30
PID 3056 wrote to memory of 1076	3056	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe	30
PID 3056 wrote to memory of 1076	3056	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe	30
PID 3056 wrote to memory of 1076	3056	b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe	30

C:\Users\Admin\AppData\Local\Temp\b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
"C:\Users\Admin\AppData\Local\Temp\b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.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:3056
- C:\Users\Admin\AppData\Local\Temp\3582-490\b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe"
  2⤵
  - Executes dropped EXE
  PID:1076

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\DW20.EXE

Filesize
859KB

MD5
754309b7b83050a50768236ee966224f

SHA1
10ed7efc2e594417ddeb00a42deb8fd9f804ed53

SHA256
acd32dd903e5464b0ecd153fb3f71da520d2e59a63d4c355d9c1874c919d04e6

SHA512
e5aaddf62c08c8fcc1ae3f29df220c5c730a2efa96dd18685ee19f5a9d66c4735bb4416c4828033661990604669ed345415ef2dc096ec75e1ab378dd804b1614

Download Submit
C:\Users\Admin\AppData\Local\Temp\3582-490\b4c236a9c1b689d581dff93bf09f033ae3f232631a0f66b361fc9f4e621d9b66.exe

Filesize
3.0MB

MD5
9043ef791b6846973f07ed96a79dbb2b

SHA1
4592c62cc6e6e04327719965e45af61e4f884547

SHA256
7bd528732627614de252c3bcf78d42159e8a1d0619fe4383aeda829ac5c0e384

SHA512
81b1114cef2d1d79efe610e9687a53854f71f2d537df3efc0d415e960b14915a8201b89dd080fc579cae62b96283025b20560832571d55848071fd5f3a206414

Download Submit
\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE

Filesize
252KB

MD5
9e2b9928c89a9d0da1d3e8f4bd96afa7

SHA1
ec66cda99f44b62470c6930e5afda061579cde35

SHA256
8899b4ed3446b7d55b54defbc1acb7c5392a4b3bc8ec2cdc7c31171708965043

SHA512
2ca5ad1d0e12a8049de885b90b7f56fe77c868e0d6dae4ec4b6f3bc0bf7b2e73295cc9b1328c2b45357ffb0d7804622ab3f91a56140b098e93b691032d508156

Download Submit
memory/3056-83-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/3056-85-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads