stealc | f9e1a70c0a8fc1be5fcb37903cd70943d271230345c44dd9745a86782a80fffe

Analysis

max time kernel
147s
max time network
152s
platform
windows10-2004_x64
resource
win10v2004-20240419-en
resource tags

arch:x64arch:x86image:win10v2004-20240419-enlocale:en-usos:windows10-2004-x64system
submitted
01-05-2024 01:42

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General

Target

716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe
Size

359KB
MD5

b898ced2e152060f5770f1c6337006f6
SHA1

b607705b76412adecc350bd38994d94ca3870f5a
SHA256

716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b
SHA512

4abd4a0c23f8d92c722246cab49797a840ebfd3cd4b900ba310ff243c529149b887620cfee3241c1605e1ae5dab501ee17a8d4de0634c8c52792677b107029a7
SSDEEP

6144:YSgQdkTUGJXOjv5o1SDQadvOKfj7RG77sxEPqwt4vg51O+CNkvtPUavkb3eXr:1gSkTUGRODeaMKLtGfWLwCvRk1PJoeXr

Score

10^/10

stealc vidar 03cea2609023d13f145ac6c5dc897112 stealer

Malware Config

Extracted

Family

stealc

rc4.plain

Extracted

Family

vidar

Version

9.3

Botnet

03cea2609023d13f145ac6c5dc897112

https://steamcommunity.com/profiles/76561199680449169

https://t.me/r1g1o

Attributes

profile_id_v2
03cea2609023d13f145ac6c5dc897112
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36 OPR/101.0.0.0

Signatures

Detect Vidar Stealer 5 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/220-0-0x0000000000940000-0x000000000099E000-memory.dmp	family_vidar_v7
behavioral2/memory/748-1-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/220-2-0x0000000000940000-0x000000000099E000-memory.dmp	family_vidar_v7
behavioral2/memory/748-4-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/748-6-0x0000000000400000-0x0000000000643000-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

Suspicious use of SetThreadContext 1 IoCs

Processes:

716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe

description	pid	process	target process
PID 220 set thread context of 748	220	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

5008 748 WerFault.exe RegAsm.exe

pid	pid_target	process	target process
5008	748	WerFault.exe	RegAsm.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe

description	pid	process	target process
PID 220 wrote to memory of 748	220	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 220 wrote to memory of 748	220	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 220 wrote to memory of 748	220	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 220 wrote to memory of 748	220	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 220 wrote to memory of 748	220	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 220 wrote to memory of 748	220	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 220 wrote to memory of 748	220	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 220 wrote to memory of 748	220	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 220 wrote to memory of 748	220	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe
"C:\Users\Admin\AppData\Local\Temp\716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:220

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
PID:748

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 748 -s 1488
3⤵
- Program crash
PID:5008

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 748 -ip 748
1⤵
PID:4060

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/220-0-0x0000000000940000-0x000000000099E000-memory.dmp

Filesize
376KB

Download
memory/220-2-0x0000000000940000-0x000000000099E000-memory.dmp

Filesize
376KB

Download
memory/748-1-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/748-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/748-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download