neshta | c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555

Analysis

max time kernel
15s
max time network
19s
platform
windows7_x64
resource
win7-20240729-en
resource tags

arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
submitted
09/10/2024, 02:46

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General

Target

c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
Size

926KB
MD5

40567c3bb8f377438ad9ade47eda95a0
SHA1

0dc7d859dcc9d6466a88797794ce1c9718119b55
SHA256

c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555
SHA512

563707ad6049f488fbfabee76c63ab6fec1da39e688f168c5ab63571702d0d615d8daeb39016f2de938222e7e9fec9fb4d3245a3bd5c3fe2bb66f32ffbced629
SSDEEP

24576:Le7/zHaG7VXkY/WhNlo5QlWm/B1YWhkfc7jMTn+3:o/za2XkaklDkdy

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

Executes dropped EXE 1 IoCs

pid	Process
1680	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe

Loads dropped DLL 6 IoCs

pid	Process
2252	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
2252	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
2520	WerFault.exe
2520	WerFault.exe
2520	WerFault.exe
2252	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.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\" %*"	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.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\MICROS~1\Office14\NAMECO~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTEM.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wabmig.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\WinMail.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DWTRIG20.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\ink\mip.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORDB.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\Google\Update\DISABL~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GROOVEMN.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSTORE.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\PPTICO.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WORDICON.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\ADOBEA~1\Versions\1.0\ADOBEA~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\MSInfo\msinfo32.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOICONS.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{33D1F~1\VCREDI~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{4D8DC~1\VC_RED~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\Oarpmany.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\AcroRd32.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\misc.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WINDOW~1\wab.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\FLTLDR.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\IECONT~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOUC.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\ODeploy.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ACCICONS.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WI4223~1\sidebar.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ACROBR~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\Eula.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\LOGTRA~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\BCSSync.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOHTMED.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\ONENOTE.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOOGLE~2.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\iexplore.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmlaunch.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmprph.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmpshare.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Reader\ADOBEC~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\MSOXMLED.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\SOURCE~1\OSE.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~3\PACKAG~1\{CA675~1\VCREDI~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ielowutil.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CNFNOT32.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\GRAPH.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\WINWORD.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\XLICONS.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\OFFICE14\OFFICE~1\Setup.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GOF5E2~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\INTERN~1\ieinstal.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\Adobe\Updater6\ADOBE_~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\TextConv\WksConv\Wkconv.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\Adobe\READER~1.0\Resource\Icons\SC_REA~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\OIS.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\wmplayer.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\DW\DW20.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSOSYNC.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\WMPDMC.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\Google\Update\1336~1.151\GO664E~1.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\CLVIEW.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\MICROS~1\Office14\MSQRY32.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WI54FB~1\setup_wm.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\WINDOW~2\ACCESS~1\wordpad.exe	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
File opened for modification	C:\PROGRA~2\COMMON~1\MICROS~1\EQUATION\EQNEDT32.EXE	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe

Drops file in Windows directory 1 IoCs

description	ioc	Process
File opened for modification	C:\Windows\svchost.com	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.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
2520	1680	WerFault.exe	30

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	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.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\" %*"	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 2252 wrote to memory of 1680	2252	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe	30
PID 2252 wrote to memory of 1680	2252	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe	30
PID 2252 wrote to memory of 1680	2252	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe	30
PID 2252 wrote to memory of 1680	2252	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe	30
PID 1680 wrote to memory of 2520	1680	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe	31
PID 1680 wrote to memory of 2520	1680	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe	31
PID 1680 wrote to memory of 2520	1680	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe	31
PID 1680 wrote to memory of 2520	1680	c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe	31

C:\Users\Admin\AppData\Local\Temp\c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
"C:\Users\Admin\AppData\Local\Temp\c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.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:2252
- C:\Users\Admin\AppData\Local\Temp\3582-490\c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe
  "C:\Users\Admin\AppData\Local\Temp\3582-490\c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:1680
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 1680 -s 212
    3⤵
    - Loads dropped DLL
    - Program crash
    PID:2520

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
\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\c3a8cd83fe41d3759280b59cfeb0946899ad4085b6a55710de6058c33b87b555N.exe

Filesize
886KB

MD5
db488d8dae54882b1fc7c527278c54e3

SHA1
f1dc7815f85917c60c511a930055c271f3eda1d6

SHA256
327b9b77d470ae83cc97c9657e94f8344ebb8f0530e73b67d9a0c48484f32c2d

SHA512
dd2df7a8a7de49ab6ee8cf588b2571dfb0fdc96e763ac541393863e7b4772a322b1f981865ec5ed9ed43eb2db36d639d4bc09e993892602d26f692ff5c8a899e

Download Submit
memory/1680-15-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1680-93-0x0000000000220000-0x0000000000221000-memory.dmp

Filesize
4KB

Download
memory/1680-92-0x0000000000400000-0x00000000004E2000-memory.dmp

Filesize
904KB

Download
memory/1680-96-0x0000000000400000-0x00000000004E2000-memory.dmp

Filesize
904KB

Download
memory/2252-91-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download
memory/2252-95-0x0000000000400000-0x000000000041B000-memory.dmp

Filesize
108KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads