stealc | 0d29542a4e177ab50ea5ac6ffad38e4ac31bf199f6de30334b73b0ab04c0f20c

Analysis

max time kernel
42s
max time network
45s
platform
windows11-21h2_x64
resource
win11-20241007-en
resource tags

arch:x64arch:x86image:win11-20241007-enlocale:en-usos:windows11-21h2-x64system
submitted
19-11-2024 19:59

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General

Target

stealerc.exe
Size

824KB
MD5

48f8fd860361571c1ea6373fa9929fdd
SHA1

1940e67c060a7b2b7085ba8513cd69d97c035775
SHA256

0d29542a4e177ab50ea5ac6ffad38e4ac31bf199f6de30334b73b0ab04c0f20c
SHA512

f2145f41c822d57f079b03a24e86595bfc29dc1daca199be0fa56a3f054e622624f70f6a9084f02e369ca7c6c594f07230da260708142dcec64dedef8c9b48a6
SSDEEP

6144:M58tl+4sfTny7TuvpdZlt4DIJYVKWi8u5yrh5rTNhhuy1qkteGtLMA+/mt9:M58tl+TtvtGyYKW5u8lq6T+/s

Score

10^/10

stealc vidar 93fc6460673f6002db33ceb23a9e1868 discovery stealer

Malware Config

Extracted

Family

vidar

Version

11.7

Botnet

93fc6460673f6002db33ceb23a9e1868

https://t.me/m07mbk

https://steamcommunity.com/profiles/76561199801589826

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15 Ddg/17.6

Signatures

Detect Vidar Stealer 2 IoCs

stealer

resource	yara_rule
behavioral1/memory/3972-0-0x0000000000720000-0x0000000000979000-memory.dmp	family_vidar_v7
behavioral1/memory/3972-18-0x0000000000720000-0x0000000000979000-memory.dmp	family_vidar_v7

Stealc
Stealc is an infostealer written in C++.
stealer stealc
Stealc family
stealc
Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Vidar family
vidar
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
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	stealerc.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	timeout.exe

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

description	ioc	Process
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	stealerc.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	stealerc.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
2020	timeout.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
3972	stealerc.exe
3972	stealerc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 3972 wrote to memory of 3340	3972	stealerc.exe	77
PID 3972 wrote to memory of 3340	3972	stealerc.exe	77
PID 3972 wrote to memory of 3340	3972	stealerc.exe	77
PID 3340 wrote to memory of 2020	3340	cmd.exe	79
PID 3340 wrote to memory of 2020	3340	cmd.exe	79
PID 3340 wrote to memory of 2020	3340	cmd.exe	79

C:\Users\Admin\AppData\Local\Temp\stealerc.exe
"C:\Users\Admin\AppData\Local\Temp\stealerc.exe"
1⤵
- System Location Discovery: System Language Discovery
- Checks processor information in registry
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:3972
- C:\Windows\SysWOW64\cmd.exe
  "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Users\Admin\AppData\Local\Temp\stealerc.exe" & rd /s /q "C:\ProgramData\JEGDGIIJJECF" & exit
  2⤵
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:3340
- - C:\Windows\SysWOW64\timeout.exe
    timeout /t 10
    3⤵
    - System Location Discovery: System Language Discovery
    - Delays execution with timeout.exe
    PID:2020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/3972-0-0x0000000000720000-0x0000000000979000-memory.dmp

Filesize
2.3MB

Download
memory/3972-18-0x0000000000720000-0x0000000000979000-memory.dmp

Filesize
2.3MB

Download