vidar | 891ff048e288dcca08803fcef72ae1a0c5a1d4d98175a2f2e9c8a1b9ce905125

General

Target

29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe
Size

192KB
MD5

1004e31f8b0d72820d77e16371794c0e
SHA1

0a96d92f65817ae6d30b5e6fc365db31eb73b434
SHA256

29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587
SHA512

8c25baa67f69984ca95c5b8c808a5d0ddade2fe34a104ca9b831f1394d958f860cc8ac91ce8b631b825ffc9d51ddb2c43463bba578c92de3fcd45298d8d05ef8
SSDEEP

3072:qAMUgtawN/ot81c+VtzGH+78u2rtVW8sOe/EpHGUOwq8t9zs+tO2GRKYzEO:qj15QtBuweQ3T7ryUHGUXqw9w+tOzEO

Score

10^/10

vidar b5c0d4e5b5864e901256554166fa4297 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

10.8

Botnet

b5c0d4e5b5864e901256554166fa4297

C2

https://t.me/jamelwt

https://steamcommunity.com/profiles/76561199761128941

https://t.me/iyigunl

Attributes

user_agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/127.0.0.0 Safari/537.36

Signatures

Detect Vidar Stealer 7 IoCs

stealer

resource	yara_rule
behavioral2/memory/2448-4-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/2448-10-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/2448-8-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/2448-29-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/2448-30-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/2448-46-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral2/memory/2448-48-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003
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 2836 set thread context of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217

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	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.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
2448	RegAsm.exe
2448	RegAsm.exe
2448	RegAsm.exe
2448	RegAsm.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2836 wrote to memory of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87
PID 2836 wrote to memory of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87
PID 2836 wrote to memory of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87
PID 2836 wrote to memory of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87
PID 2836 wrote to memory of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87
PID 2836 wrote to memory of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87
PID 2836 wrote to memory of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87
PID 2836 wrote to memory of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87
PID 2836 wrote to memory of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87
PID 2836 wrote to memory of 2448	2836	29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe	87

C:\Users\Admin\AppData\Local\Temp\29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe
"C:\Users\Admin\AppData\Local\Temp\29d4866d908981b5ac4688adfd9bfec2801290054e2269e43518eb3450ef2587.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2836
- 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:2448

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Unsecured Credentials

1

T1552

Credentials In Files

1

T1552.001

Discovery

Browser Information Discovery

Query Registry

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/2448-4-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2448-10-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2448-8-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2448-29-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2448-30-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2448-46-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2448-32-0x00000000221B0000-0x000000002240F000-memory.dmp

Filesize
2.4MB

Download
memory/2448-48-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2836-0-0x00000000743EE000-0x00000000743EF000-memory.dmp

Filesize
4KB

Download
memory/2836-1-0x0000000000DF0000-0x0000000000E24000-memory.dmp

Filesize
208KB

Download
memory/2836-13-0x00000000743E0000-0x0000000074B90000-memory.dmp

Filesize
7.7MB

Download
memory/2836-47-0x00000000743E0000-0x0000000074B90000-memory.dmp

Filesize
7.7MB

Download

Analysis

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