vidar | 63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2

General

Target

63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe
Size

571KB
MD5

4cc900d0271de61dd5d72e3496f8b68e
SHA1

e93df1365b34c697ab5bd65623973bd2a6d6c683
SHA256

63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2
SHA512

9935b3cd2b9c9f6f8436442ba392685dce17693b04a9dc5539190267eaad1cb50b27399b4870b4351f45b26abb3ecc0c6cac23c96e0d44f068ca3f7438058265
SSDEEP

12288:T3EcpXoWDMCyyZUcfaRFoMYhs6+p9E+ggnGZalS22S4S:TtXoXuiRO/hyiZb

Score

10^/10

vidar 4a5bc8b73e12425adc3c399da8136891 discovery stealer

Malware Config

Extracted

Family

vidar

Botnet

4a5bc8b73e12425adc3c399da8136891

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 7 IoCs

stealer

resource	yara_rule
behavioral2/memory/2184-1-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2184-3-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2184-6-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2184-7-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2184-8-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2184-9-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7
behavioral2/memory/2184-12-0x0000000000400000-0x0000000000676000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 3176 set thread context of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84

Program crash 2 IoCs

pid	pid_target	Process	procid_target
3948	3176	WerFault.exe	81
404	2184	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	MSBuild.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.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 value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	MSBuild.exe
Key opened	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0	MSBuild.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2184	MSBuild.exe
2184	MSBuild.exe
2184	MSBuild.exe
2184	MSBuild.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 3176 wrote to memory of 3184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	82
PID 3176 wrote to memory of 3184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	82
PID 3176 wrote to memory of 3184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	82
PID 3176 wrote to memory of 3304	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	83
PID 3176 wrote to memory of 3304	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	83
PID 3176 wrote to memory of 3304	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	83
PID 3176 wrote to memory of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84
PID 3176 wrote to memory of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84
PID 3176 wrote to memory of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84
PID 3176 wrote to memory of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84
PID 3176 wrote to memory of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84
PID 3176 wrote to memory of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84
PID 3176 wrote to memory of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84
PID 3176 wrote to memory of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84
PID 3176 wrote to memory of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84
PID 3176 wrote to memory of 2184	3176	63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe	84

C:\Users\Admin\AppData\Local\Temp\63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe
"C:\Users\Admin\AppData\Local\Temp\63ca62f5f0010838bf12974c4c8fe1586872dd461deadfa2f584e04422f943e2.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3176
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:3184
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"
  2⤵
  PID:3304
- 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:2184
- - C:\Windows\SysWOW64\WerFault.exe
    C:\Windows\SysWOW64\WerFault.exe -u -p 2184 -s 1664
    3⤵
    - Program crash
    PID:404
- C:\Windows\SysWOW64\WerFault.exe
  C:\Windows\SysWOW64\WerFault.exe -u -p 3176 -s 268
  2⤵
  - Program crash
  PID:3948

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 3176 -ip 3176
1⤵
PID:4604

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 512 -p 2184 -ip 2184
1⤵
PID:1968

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

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Downloads

memory/2184-1-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2184-3-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2184-6-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2184-7-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2184-8-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2184-9-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/2184-12-0x0000000000400000-0x0000000000676000-memory.dmp

Filesize
2.5MB

Download
memory/3176-0-0x00000000004FD000-0x00000000004FF000-memory.dmp

Filesize
8KB

Download

Analysis

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