stealc | 0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258

Analysis

max time kernel
148s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
29-06-2024 21:56

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General

Target

0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe
Size

407KB
MD5

d0e9e6aac645b8c5af9f51430c75f9c0
SHA1

990407a4f8ddb6ca93d63f421d9a61b778669e95
SHA256

0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258
SHA512

379aa05c9c0092bdb32b61cc0ae8489939c6bfcc9e95251442b00c855bb22bff6ee9a338e2eb936e0e1a16edec4e5b95e37925dadedf5dadac05f1759eec2205
SSDEEP

6144:nfI3vziGwqHxAw69zwPrDazpLr+mEY/6ft/5CScHbgrtUThx37iQ1mMY4wJ2s3:nA3riGwqHxFBWEY/ah5aIUbriQrjw

Score

10^/10

stealc vidar 673ad4d1558c47b58d4f59c1d86488e2 discovery spyware stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

Version

10.1

Botnet

673ad4d1558c47b58d4f59c1d86488e2

https://t.me/memve4erin

https://steamcommunity.com/profiles/76561199699680841

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0

Signatures

Detect Vidar Stealer 13 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/1456-1-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-3-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-5-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-9-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-19-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-20-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-28-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-29-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-45-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-46-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-60-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1456-61-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
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

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation RegAsm.exe
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
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
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Suspicious use of SetThreadContext 1 IoCs

Processes:

0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe

description pid process target process

PID 1556 set thread context of 1456 1556 0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe RegAsm.exe
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3240 1556 WerFault.exe 0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe
Checks processor information in registry 2 TTPs 1 IoCs
Processor information is often read in order to detect sandboxing environments.

Query Registry
T1012

System Information Discovery
T1082

Processes:

RegAsm.exe

description ioc process

Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString RegAsm.exe
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

3584 timeout.exe
Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

RegAsm.exe

pid process

1456 RegAsm.exe
1456 RegAsm.exe
1456 RegAsm.exe
1456 RegAsm.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-3169499791-3545231813-3156325206-1000\Control Panel\International\Geo\Nation	RegAsm.exe

description	pid	process	target process
PID 1556 set thread context of 1456	1556	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe	RegAsm.exe

pid	pid_target	process	target process
3240	1556	WerFault.exe	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe

description	ioc	process
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

pid	process
3584	timeout.exe

pid	process
1456	RegAsm.exe
1456	RegAsm.exe
1456	RegAsm.exe
1456	RegAsm.exe

Suspicious use of WriteProcessMemory 15 IoCs

Processes:

0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exeRegAsm.execmd.exe

description	pid	process	target process
PID 1556 wrote to memory of 1456	1556	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe	RegAsm.exe
PID 1556 wrote to memory of 1456	1556	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe	RegAsm.exe
PID 1556 wrote to memory of 1456	1556	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe	RegAsm.exe
PID 1556 wrote to memory of 1456	1556	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe	RegAsm.exe
PID 1556 wrote to memory of 1456	1556	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe	RegAsm.exe
PID 1556 wrote to memory of 1456	1556	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe	RegAsm.exe
PID 1556 wrote to memory of 1456	1556	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe	RegAsm.exe
PID 1556 wrote to memory of 1456	1556	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe	RegAsm.exe
PID 1556 wrote to memory of 1456	1556	0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe	RegAsm.exe
PID 1456 wrote to memory of 4320	1456	RegAsm.exe	cmd.exe
PID 1456 wrote to memory of 4320	1456	RegAsm.exe	cmd.exe
PID 1456 wrote to memory of 4320	1456	RegAsm.exe	cmd.exe
PID 4320 wrote to memory of 3584	4320	cmd.exe	timeout.exe
PID 4320 wrote to memory of 3584	4320	cmd.exe	timeout.exe
PID 4320 wrote to memory of 3584	4320	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe
"C:\Users\Admin\AppData\Local\Temp\0398f85df216a2e95e792853f215431fc1983928a7f596ea6cd135924c66e258_NeikiAnalytics.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1556

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
- Checks computer location settings
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1456

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\System32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\EGDAEBGIDBGH" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:4320

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:3584

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 1556 -s 300
2⤵
- Program crash
PID:3240

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 1556 -ip 1556
1⤵
PID:2848

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

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Downloads

memory/1456-11-0x000000001B460000-0x000000001B6BF000-memory.dmp

Filesize
2.4MB

Download
memory/1456-20-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-3-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-5-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-1-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-19-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-61-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-28-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-29-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-45-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-46-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1456-60-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1556-0-0x0000000002EE0000-0x0000000002EE1000-memory.dmp

Filesize
4KB

Download