stealc | 716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b

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

C2

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/2244-0-0x00000000009C0000-0x0000000000A1E000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-1-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2244-2-0x00000000009C0000-0x0000000000A1E000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-4-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/3952-6-0x0000000000400000-0x0000000000643000-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

Detects Windows executables referencing non-Windows User-Agents 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2244-0-0x00000000009C0000-0x0000000000A1E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/3952-1-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/2244-2-0x00000000009C0000-0x0000000000A1E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/3952-4-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/3952-6-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA

Detects binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2244-0-0x00000000009C0000-0x0000000000A1E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/3952-1-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/2244-2-0x00000000009C0000-0x0000000000A1E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/3952-4-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/3952-6-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

Detects executables containing potential Windows Defender anti-emulation checks 5 IoCs

Processes:

resource	yara_rule
behavioral2/memory/2244-0-0x00000000009C0000-0x0000000000A1E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/3952-1-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/2244-2-0x00000000009C0000-0x0000000000A1E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/3952-4-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/3952-6-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation

Suspicious use of SetThreadContext 1 IoCs

Processes:

716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe

description	pid	process	target process
PID 2244 set thread context of 3952	2244	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

2392 3952 WerFault.exe RegAsm.exe

pid	pid_target	process	target process
2392	3952	WerFault.exe	RegAsm.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe

description	pid	process	target process
PID 2244 wrote to memory of 3952	2244	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 2244 wrote to memory of 3952	2244	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 2244 wrote to memory of 3952	2244	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 2244 wrote to memory of 3952	2244	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 2244 wrote to memory of 3952	2244	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 2244 wrote to memory of 3952	2244	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 2244 wrote to memory of 3952	2244	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 2244 wrote to memory of 3952	2244	716b19201a3109a3fb15b0401cb86a9be6df726c8b3a1a1c88cefb445457966b.exe	RegAsm.exe
PID 2244 wrote to memory of 3952	2244	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:2244

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
PID:3952

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 3952 -s 2136
3⤵
- Program crash
PID:2392

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 208 -p 3952 -ip 3952
1⤵
PID:4592

Network

MITRE ATT&CK Matrix

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Downloads

memory/2244-0-0x00000000009C0000-0x0000000000A1E000-memory.dmp

Filesize
376KB

Download
memory/2244-2-0x00000000009C0000-0x0000000000A1E000-memory.dmp

Filesize
376KB

Download
memory/3952-1-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/3952-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/3952-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Extracted

Signatures

Processes

Network

MITRE ATT&CK Matrix

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Downloads