stealc | 0b16b49b205bc2269849ef30fb7368f06d45cd9a96ffcb347be89ddd3cc81fb1

Analysis

max time kernel
148s
max time network
158s
platform
windows10-2004_x64
resource
win10v2004-20240611-en
resource tags

arch:x64arch:x86image:win10v2004-20240611-enlocale:en-usos:windows10-2004-x64system
submitted
01-07-2024 02:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe
Size

2.2MB
MD5

6a605bfcf8816ab1a6e21238fcb55747
SHA1

3e3a35e578c8a3faf88abe8fd7791ecc4bca538d
SHA256

07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f
SHA512

a6f7c16fe752905dd9305ba7e46b0cc5de054f1dafd8ba836f61a50781f5f089bcf2e49961fa886de4efc2c6c972313bfd2770558131c360bcb8b2823ea1db0a
SSDEEP

49152:qpjNvr9ySAOmw4dHHO+SASagXkJr4MDkUwm:qpjNp7p4dHH8n5A

Score

10^/10

stealc vidar discovery spyware 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 17 IoCs

stealer

Processes:

resource	yara_rule
behavioral2/memory/1076-1-0x00000000029E0000-0x0000000002AF0000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-9-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-10-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-4-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-22-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-23-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-33-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-34-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-42-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-43-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-59-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-66-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-67-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-72-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-73-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-74-0x0000000000400000-0x0000000000648000-memory.dmp	family_vidar_v7
behavioral2/memory/1708-75-0x0000000000400000-0x0000000000648000-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
Downloads MZ/PE file
Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.

Query Registry
T1012

System Information Discovery
T1082

Processes:

kat3D76.tmp

description ioc process

Key value queried \REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation kat3D76.tmp
Executes dropped EXE 1 IoCs

Processes:

kat3D76.tmp

pid process

1708 kat3D76.tmp
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials In Files
T1552.001
Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
discovery

Query Registry
T1012
Suspicious use of SetThreadContext 1 IoCs

Processes:

07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe

description pid process target process

PID 1076 set thread context of 1708 1076 07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe kat3D76.tmp
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4204450073-1267028356-951339405-1000\Control Panel\International\Geo\Nation	kat3D76.tmp

pid	process
1708	kat3D76.tmp

description	pid	process	target process
PID 1076 set thread context of 1708	1076	07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe	kat3D76.tmp

Checks processor information in registry 2 TTPs 2 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

T1012

System Information Discovery

T1082

Processes:

kat3D76.tmp

description	ioc	process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	kat3D76.tmp
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	kat3D76.tmp

Delays execution with timeout.exe 1 IoCs
evasion

Processes:

timeout.exe

pid process

2436 timeout.exe
Suspicious behavior: EnumeratesProcesses 8 IoCs

Processes:

kat3D76.tmp

pid process

1708 kat3D76.tmp
1708 kat3D76.tmp
1708 kat3D76.tmp
1708 kat3D76.tmp
1708 kat3D76.tmp
1708 kat3D76.tmp
1708 kat3D76.tmp
1708 kat3D76.tmp

pid	process
2436	timeout.exe

pid	process
1708	kat3D76.tmp
1708	kat3D76.tmp
1708	kat3D76.tmp
1708	kat3D76.tmp
1708	kat3D76.tmp
1708	kat3D76.tmp
1708	kat3D76.tmp
1708	kat3D76.tmp

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exekat3D76.tmpcmd.exe

description	pid	process	target process
PID 1076 wrote to memory of 1708	1076	07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe	kat3D76.tmp
PID 1076 wrote to memory of 1708	1076	07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe	kat3D76.tmp
PID 1076 wrote to memory of 1708	1076	07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe	kat3D76.tmp
PID 1076 wrote to memory of 1708	1076	07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe	kat3D76.tmp
PID 1076 wrote to memory of 1708	1076	07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe	kat3D76.tmp
PID 1076 wrote to memory of 1708	1076	07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe	kat3D76.tmp
PID 1076 wrote to memory of 1708	1076	07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe	kat3D76.tmp
PID 1076 wrote to memory of 1708	1076	07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe	kat3D76.tmp
PID 1708 wrote to memory of 3224	1708	kat3D76.tmp	cmd.exe
PID 1708 wrote to memory of 3224	1708	kat3D76.tmp	cmd.exe
PID 1708 wrote to memory of 3224	1708	kat3D76.tmp	cmd.exe
PID 3224 wrote to memory of 2436	3224	cmd.exe	timeout.exe
PID 3224 wrote to memory of 2436	3224	cmd.exe	timeout.exe
PID 3224 wrote to memory of 2436	3224	cmd.exe	timeout.exe

C:\Users\Admin\AppData\Local\Temp\07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe
"C:\Users\Admin\AppData\Local\Temp\07be352dde09851de71ce7c763537e2b5c567e52fd161304cbaa54895dcd5c8f.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1076

C:\Users\Admin\AppData\Local\Temp\kat3D76.tmp
C:\Users\Admin\AppData\Local\Temp\kat3D76.tmp
2⤵
- Checks computer location settings
- Executes dropped EXE
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1708

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\kat3D76.tmp" & rd /s /q "C:\ProgramData\EHJDHJKFIECA" & exit
3⤵
- Suspicious use of WriteProcessMemory
PID:3224

C:\Windows\SysWOW64\timeout.exe
timeout /t 10
4⤵
- Delays execution with timeout.exe
PID:2436

Network

MITRE ATT&CK Matrix ATT&CK v13

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Exfiltration

Command and Control

Impact

Resource Development

Reconnaissance

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\kat3D76.tmp
Filesize
861KB

MD5
66064dbdb70a5eb15ebf3bf65aba254b

SHA1
0284fd320f99f62aca800fb1251eff4c31ec4ed7

SHA256
6a94dbda2dd1edcff2331061d65e1baf09d4861cc7ba590c5ec754f3ac96a795

SHA512
b05c6c09ae7372c381fba591c3cb13a69a2451b9d38da1a95aac89413d7438083475d06796acb5440cd6ec65b030c9fa6cbdaa0d2fe91a926bae6499c360f17f

Download Submit
memory/1076-0-0x00000000022A0000-0x00000000022A1000-memory.dmp

Filesize
4KB

Download
memory/1076-1-0x00000000029E0000-0x0000000002AF0000-memory.dmp

Filesize
1.1MB

Download
memory/1076-6-0x0000000000400000-0x0000000000635000-memory.dmp

Filesize
2.2MB

Download
memory/1708-33-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-43-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-4-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-22-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-23-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-25-0x00000000227C0000-0x0000000022A1F000-memory.dmp

Filesize
2.4MB

Download
memory/1708-9-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-34-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-42-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-10-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-59-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-66-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-67-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-72-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-73-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-74-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download
memory/1708-75-0x0000000000400000-0x0000000000648000-memory.dmp

Filesize
2.3MB

Download