vidar | ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2

General

Target

ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe
Size

283KB
MD5

317a685e8d63e4fa4d16876659095b82
SHA1

9341a1d93b906e90053e15873edfbe792f47a7f3
SHA256

ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2
SHA512

7e8124572d51885ddbe291a7b1392d90ae080d71481cca6400fee8d03f64c7a1877c8a92c71fb2fee4a98c4383e4dae106143dbcf3fcf433f3d8925729ba80b0
SSDEEP

6144:EjPoq+m41DgFfyDE3zYzbsZlKThQVJ71kchYxLlQxsDfzU/0EO:Ez+VWyDE3zgQZM1UkHtlQxsDfg/0EO

Score

10^/10

vidar discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

https://t.me/fneogr

https://t.me/edm0d

https://steamcommunity.com/profiles/76561199768374681

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36 OPR/110.0.0.0

Signatures

Detect Vidar Stealer 5 IoCs

stealer

resource	yara_rule
behavioral2/memory/576-3-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/576-8-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/576-7-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/576-24-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/576-25-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
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
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

description	pid	Process	procid_target
PID 1204 set thread context of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84

Program crash 1 IoCs

pid	pid_target	Process	procid_target
1948	576	WerFault.exe	84

System Location Discovery: System Language Discovery 1 TTPs 2 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	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
576	RegAsm.exe
576	RegAsm.exe
576	RegAsm.exe
576	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 1204 wrote to memory of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84
PID 1204 wrote to memory of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84
PID 1204 wrote to memory of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84
PID 1204 wrote to memory of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84
PID 1204 wrote to memory of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84
PID 1204 wrote to memory of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84
PID 1204 wrote to memory of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84
PID 1204 wrote to memory of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84
PID 1204 wrote to memory of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84
PID 1204 wrote to memory of 576	1204	ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe	84

C:\Users\Admin\AppData\Local\Temp\ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe
"C:\Users\Admin\AppData\Local\Temp\ec9bd0165827dfe5cbde934168d583d2e62273e7b5c1d4d0854610209a8c00c2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1204
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:576
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 576 -s 1884
    3⤵
    - Program crash
    PID:1948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 576 -ip 576
1⤵
PID:3816

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

1

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/576-3-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/576-8-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/576-7-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/576-24-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/576-25-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/1204-0-0x000000007530E000-0x000000007530F000-memory.dmp

Filesize
4KB

Download
memory/1204-1-0x0000000000C20000-0x0000000000C6A000-memory.dmp

Filesize
296KB

Download
memory/1204-11-0x0000000075300000-0x0000000075AB0000-memory.dmp

Filesize
7.7MB

Download
memory/1204-23-0x0000000075300000-0x0000000075AB0000-memory.dmp

Filesize
7.7MB

Download

Analysis

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