stealc | d5565909d2a0f265eada4b6a4ad02d57ab21f219958e6a370923b3b196025faf

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
05-05-2024 01:27

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General

Target

48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe
Size

432KB
MD5

7fff271b63f7af3a9a59f068a6f8955f
SHA1

67c0082192328a5c003efe6fd87e38802b95570d
SHA256

48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4
SHA512

55c0a315476321ea11f9696fd3642cc3bd560ce5321d3c0c0f2b6913fce11ee3d4472fef0c8ff9bdd0972ea549d5d5932a92124351cd4f3fce5524d7eb8a2346
SSDEEP

6144:K5/FIlRSG9VJogxAJmVku6fpAgb+K0iudeI9Iaf3PMFViAnHo:w/FIbxAkV1gb7ZuwIaafP0Ho

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 4 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/4572-2-0x0000000000B10000-0x0000000000B72FAE-memory.dmp	family_vidar_v7
behavioral2/memory/4880-1-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/4880-6-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/4880-4-0x0000000000400000-0x0000000000643000-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:

48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe

description	pid	process	target process
PID 4572 set thread context of 4880	4572	48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe	RegAsm.exe

Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

5520 4880 WerFault.exe RegAsm.exe

pid	pid_target	process	target process
5520	4880	WerFault.exe	RegAsm.exe

Suspicious use of WriteProcessMemory 9 IoCs

Processes:

48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe

description	pid	process	target process
PID 4572 wrote to memory of 4880	4572	48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe	RegAsm.exe
PID 4572 wrote to memory of 4880	4572	48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe	RegAsm.exe
PID 4572 wrote to memory of 4880	4572	48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe	RegAsm.exe
PID 4572 wrote to memory of 4880	4572	48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe	RegAsm.exe
PID 4572 wrote to memory of 4880	4572	48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe	RegAsm.exe
PID 4572 wrote to memory of 4880	4572	48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe	RegAsm.exe
PID 4572 wrote to memory of 4880	4572	48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe	RegAsm.exe
PID 4572 wrote to memory of 4880	4572	48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe	RegAsm.exe
PID 4572 wrote to memory of 4880	4572	48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe	RegAsm.exe

C:\Users\Admin\AppData\Local\Temp\48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe
"C:\Users\Admin\AppData\Local\Temp\48a6d2eb28127d8bc1623400f0b33ea5f51a7473ce3369a14e8b4a5f0d02bca4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:4572

C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
2⤵
PID:4880

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 4880 -s 2288
3⤵
- Program crash
PID:5520

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 4880 -ip 4880
1⤵
PID:4440

Network

MITRE ATT&CK Matrix

Replay Monitor

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Downloads

memory/4572-0-0x0000000000B6E000-0x0000000000B70000-memory.dmp

Filesize
8KB

Download
memory/4572-2-0x0000000000B10000-0x0000000000B72FAE-memory.dmp

Filesize
395KB

Download
memory/4880-1-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4880-6-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4880-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download