stealc | 84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d

General

Target

84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe
Size

359KB
MD5

6aae5ad15e0ee9da87ab30971373a029
SHA1

2dd9bf3ee10067d4c365926768e8ee9ed0a4ec3b
SHA256

84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d
SHA512

aa978aa7b038fe958c97d3e8622bed7d3d914495dd4ca3c247638793a32bf788224adc55310d5f01069179711f1225c8d4c1f089fecfe88ede15b95db61ec83d
SSDEEP

6144:DagQdkTUGJXOjv5o1SDQBdmoclENDznZhnMU+YU+1P7p7K4UTi3r:mgSkTUGRODeBCEBthw+1P3Eor

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/2332-0-0x0000000000FE0000-0x000000000103E000-memory.dmp	family_vidar_v7
behavioral2/memory/2788-1-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2332-2-0x0000000000FE0000-0x000000000103E000-memory.dmp	family_vidar_v7
behavioral2/memory/2788-4-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2788-6-0x0000000000400000-0x0000000000643000-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/2332-0-0x0000000000FE0000-0x000000000103E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/2788-1-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/2332-2-0x0000000000FE0000-0x000000000103E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/2788-4-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA
behavioral2/memory/2788-6-0x0000000000400000-0x0000000000643000-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/2332-0-0x0000000000FE0000-0x000000000103E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/2788-1-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/2332-2-0x0000000000FE0000-0x000000000103E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/2788-4-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL
behavioral2/memory/2788-6-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_SandboxHookingDLL

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

Processes:

resource	yara_rule
behavioral2/memory/2332-0-0x0000000000FE0000-0x000000000103E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/2788-1-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/2332-2-0x0000000000FE0000-0x000000000103E000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/2788-4-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation
behavioral2/memory/2788-6-0x0000000000400000-0x0000000000643000-memory.dmp	INDICATOR_SUSPICIOUS_EXE_WindDefender_AntiEmaulation

Suspicious use of SetThreadContext 1 IoCs

Processes:

84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe

description	pid	process	target process
PID 2332 set thread context of 2788	2332	84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe	RegAsm.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

3724 2788 WerFault.exe RegAsm.exe

pid	pid_target	process	target process
3724	2788	WerFault.exe	RegAsm.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe

description	pid	process	target process
PID 2332 wrote to memory of 2788	2332	84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe	RegAsm.exe
PID 2332 wrote to memory of 2788	2332	84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe	RegAsm.exe
PID 2332 wrote to memory of 2788	2332	84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe	RegAsm.exe
PID 2332 wrote to memory of 2788	2332	84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe	RegAsm.exe
PID 2332 wrote to memory of 2788	2332	84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe	RegAsm.exe
PID 2332 wrote to memory of 2788	2332	84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe	RegAsm.exe
PID 2332 wrote to memory of 2788	2332	84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe	RegAsm.exe
PID 2332 wrote to memory of 2788	2332	84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe	RegAsm.exe
PID 2332 wrote to memory of 2788	2332	84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe
"C:\Users\Admin\AppData\Local\Temp\84da3a03933420160dd928675e81ca1e46b132aee69680e0aac5b297624ebc6d.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:2332

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
PID:2788

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2788 -s 2116
3⤵
- Program crash
PID:3724

C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
"C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=4120 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
1⤵
PID:1076

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2788 -ip 2788
1⤵
PID:400

Network

MITRE ATT&CK Matrix

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Downloads

memory/2332-0-0x0000000000FE0000-0x000000000103E000-memory.dmp

Filesize
376KB

Download
memory/2332-2-0x0000000000FE0000-0x000000000103E000-memory.dmp

Filesize
376KB

Download
memory/2788-1-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2788-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2788-6-0x0000000000400000-0x0000000000643000-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