vidar | 5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6

General

Target

5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe
Size

571KB
MD5

481e35a62ebd60c05fe7659514bd63b1
SHA1

429a170aee59f3c46d44d9e2c567e39fb6cd6072
SHA256

5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6
SHA512

f33ff84159018bb182fc89f4a1f3813786d72d50336f4b8234660a5dafb4262a33830e4dce27e5069c0faeee4deccd763929568c251e4e0d8e2d3c20934d4f28
SSDEEP

12288:lmQcpXoWDMIAccf/NBcfRsCnRIo3eOk7wyYfE3NFm4S:loXoptBqDRh3eP7wfM3ff

Score

10^/10

vidar 5d5c21db908d8fe19952873f9f748174 discovery stealer

Malware Config

Extracted

Family

vidar

Botnet

5d5c21db908d8fe19952873f9f748174

C2

https://t.me/maslengdsa

https://steamcommunity.com/profiles/76561199786602107

https://t.me/lpnjoke

Attributes

user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0

Signatures

Detect Vidar Stealer 8 IoCs

stealer

resource	yara_rule
behavioral2/memory/3600-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3600-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3600-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3600-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3600-17-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3600-18-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3600-28-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/3600-29-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

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

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 2152 set thread context of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83

Program crash 1 IoCs

pid	pid_target	Process	procid_target
2144	2152	WerFault.exe	81

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	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	MSBuild.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	MSBuild.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
3600	MSBuild.exe
3600	MSBuild.exe
3600	MSBuild.exe
3600	MSBuild.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2152 wrote to memory of 2224	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	82
PID 2152 wrote to memory of 2224	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	82
PID 2152 wrote to memory of 2224	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	82
PID 2152 wrote to memory of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83
PID 2152 wrote to memory of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83
PID 2152 wrote to memory of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83
PID 2152 wrote to memory of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83
PID 2152 wrote to memory of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83
PID 2152 wrote to memory of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83
PID 2152 wrote to memory of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83
PID 2152 wrote to memory of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83
PID 2152 wrote to memory of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83
PID 2152 wrote to memory of 3600	2152	5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe	83

C:\Users\Admin\AppData\Local\Temp\5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe
"C:\Users\Admin\AppData\Local\Temp\5cd91dcdc8ee04814f88dd149d49da3574163137acd60a00247f9b398b2085f6.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2152
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:2224
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  PID:3600
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 2152 -s 256
  2⤵
  - Program crash
  PID:2144

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 2152 -ip 2152
1⤵
PID:5020

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

1

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/2152-0-0x0000000000CFD000-0x0000000000CFF000-memory.dmp

Filesize
8KB

Download
memory/3600-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3600-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3600-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3600-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3600-17-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3600-18-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3600-21-0x0000000022B00000-0x0000000022D5F000-memory.dmp

Filesize
2.4MB

Download
memory/3600-28-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3600-29-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download

Analysis

Sharing