stealc | ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4

Analysis

max time kernel
4s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20240508-en
resource tags

arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 04:12

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General

Target

ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe
Size

2.2MB
MD5

9ccb9a62815ce0472abdcd31039497d8
SHA1

472c33727c771af5cf829a9c40e3f85725a1fe5a
SHA256

ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4
SHA512

fe0927252bc9f82cc9f57c70135c4472f8d2e5c7dd949bb900811caf5919600200e75fdc26b2b00f7dad79a9515edbd86676dd86fd871fc6d9ab2ae99e6e9d71
SSDEEP

24576:Uc0PyhhGkCI1wUL24jtYkYGbawg757CgXueAgXTYU2MZQti1u8LnsDJY6WpEYGYG:UJ0hsA91MPb21tuuIeNHYGY0LzjsJxK

Score

10^/10

stealc vidar stealer

Malware Config

Extracted

Family

vidar

https://t.me/g067n

https://steamcommunity.com/profiles/76561199707802586

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
behavioral1/memory/2064-8-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-9-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/1544-1-0x0000000004130000-0x0000000004243000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-22-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-23-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-40-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-57-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-41-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-58-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-69-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-70-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral1/memory/2064-71-0x0000000000400000-0x0000000000648000-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
Executes dropped EXE 1 IoCs

Processes:

kat5C68.tmp

pid process

2064 kat5C68.tmp
Suspicious use of SetThreadContext 1 IoCs

Processes:

ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe

description pid process target process

PID 1544 set thread context of 2064 1544 ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe kat5C68.tmp
Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

1604 timeout.exe
Suspicious behavior: EnumeratesProcesses 2 IoCs

Processes:

kat5C68.tmp

pid process

2064 kat5C68.tmp
2064 kat5C68.tmp

pid	process
2064	kat5C68.tmp

description	pid	process	target process
PID 1544 set thread context of 2064	1544	ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe	kat5C68.tmp

pid	process
1604	timeout.exe

pid	process
2064	kat5C68.tmp
2064	kat5C68.tmp

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe

description	pid	process	target process
PID 1544 wrote to memory of 2064	1544	ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe	kat5C68.tmp
PID 1544 wrote to memory of 2064	1544	ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe	kat5C68.tmp
PID 1544 wrote to memory of 2064	1544	ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe	kat5C68.tmp
PID 1544 wrote to memory of 2064	1544	ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe	kat5C68.tmp
PID 1544 wrote to memory of 2064	1544	ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe	kat5C68.tmp
PID 1544 wrote to memory of 2064	1544	ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe	kat5C68.tmp
PID 1544 wrote to memory of 2064	1544	ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe	kat5C68.tmp
PID 1544 wrote to memory of 2064	1544	ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe	kat5C68.tmp

C:\Users\Admin\AppData\Local\Temp\ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe
"C:\Users\Admin\AppData\Local\Temp\ac3e0c5b52a68acd4088ea9612b78f2fbc077a2f6ca1bec8de115698c07d81e4.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1544

C:\Users\Admin\AppData\Local\Temp\kat5C68.tmp
C:\Users\Admin\AppData\Local\Temp\kat5C68.tmp
2⤵
- Executes dropped EXE
- Suspicious behavior: EnumeratesProcesses
PID:2064

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat5C68.tmp" & rd /s /q "C:\ProgramData\HJJJJKEHCAKF" & exit
3⤵
PID:4768

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:1604

Network

MITRE ATT&CK Matrix

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Downloads

C:\Users\Admin\AppData\Local\Temp\kat5C68.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/1544-10-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/1544-0-0x00000000024F0000-0x00000000024F1000-memory.dmp

Filesize
4KB

Download
memory/1544-1-0x0000000004130000-0x0000000004243000-memory.dmp

Filesize
1.1MB

Download
memory/2064-23-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-22-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-8-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-25-0x00000000201B0000-0x000000002040F000-memory.dmp

Filesize
2.4MB

Download
memory/2064-40-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-57-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-41-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-58-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-69-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-70-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/2064-71-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download