vidar | 5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26

General

Target

5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe
Size

282KB
MD5

5dd74b81e1e9f3ab155e1603a2fa793b
SHA1

653cdaf8617c7fdec6f39db3334e858bec9a2d66
SHA256

5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26
SHA512

9017f6797f998423e3cd88dcf1086f6e555797a9e6414ffd714dcb394cfd3f2b2fb5432c9ba38792021b5ba9e421454385f509c9363cedb7d3ac5919f66035fa
SSDEEP

6144:kpKO3JjtQLCz0sVHReGoBtSTMv+ONYwjBv8ncRoHvYpUTl/KF//sEO:kvLVVBUt8Mv+ejBv8cGzTVKdsEO

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

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/5776-4-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/5776-7-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/5776-9-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/5776-28-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral2/memory/5776-29-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Downloads MZ/PE file
Reads data files stored by FTP clients 2 TTPs
Tries to access configuration files associated with programs like FileZilla.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001
Unsecured Credentials: Credentials In Files 1 TTPs
Steal credentials from unsecured files.
credential_access stealer

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 5832 set thread context of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83

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 4 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	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.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	RegAsm.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	RegAsm.exe

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
5480	timeout.exe

Suspicious behavior: EnumeratesProcesses 6 IoCs

pid	Process
5776	RegAsm.exe
5776	RegAsm.exe
5776	RegAsm.exe
5776	RegAsm.exe
5776	RegAsm.exe
5776	RegAsm.exe

Suspicious use of WriteProcessMemory 25 IoCs

description	pid	Process	procid_target
PID 5832 wrote to memory of 2976	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	80
PID 5832 wrote to memory of 2976	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	80
PID 5832 wrote to memory of 2976	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	80
PID 5832 wrote to memory of 4868	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	81
PID 5832 wrote to memory of 4868	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	81
PID 5832 wrote to memory of 4868	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	81
PID 5832 wrote to memory of 5724	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	82
PID 5832 wrote to memory of 5724	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	82
PID 5832 wrote to memory of 5724	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	82
PID 5832 wrote to memory of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83
PID 5832 wrote to memory of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83
PID 5832 wrote to memory of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83
PID 5832 wrote to memory of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83
PID 5832 wrote to memory of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83
PID 5832 wrote to memory of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83
PID 5832 wrote to memory of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83
PID 5832 wrote to memory of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83
PID 5832 wrote to memory of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83
PID 5832 wrote to memory of 5776	5832	5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe	83
PID 5776 wrote to memory of 1436	5776	RegAsm.exe	85
PID 5776 wrote to memory of 1436	5776	RegAsm.exe	85
PID 5776 wrote to memory of 1436	5776	RegAsm.exe	85
PID 1436 wrote to memory of 5480	1436	cmd.exe	87
PID 1436 wrote to memory of 5480	1436	cmd.exe	87
PID 1436 wrote to memory of 5480	1436	cmd.exe	87

C:\Users\Admin\AppData\Local\Temp\5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe
"C:\Users\Admin\AppData\Local\Temp\5756eb17961a1facf1f1c972dde0185932f10f7e7a6b3e756ac785418887eb26.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:5832
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:2976
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:4868
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  PID:5724
- 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
  - Suspicious use of WriteProcessMemory
  PID:5776
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & del /f /q "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe" & rd /s /q "C:\ProgramData\EGDGDHJJDGHC" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1436
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:5480

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Unsecured Credentials

2

T1552

Credentials In Files

2

T1552.001

Discovery

Query Registry

2

T1012

System Information Discovery

2

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/5776-4-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/5776-7-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/5776-9-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/5776-28-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/5776-29-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/5776-30-0x0000000004ED0000-0x000000000512F000-memory.dmp

Filesize
2.4MB

Download
memory/5832-0-0x00000000751AE000-0x00000000751AF000-memory.dmp

Filesize
4KB

Download
memory/5832-1-0x0000000000DE0000-0x0000000000E2A000-memory.dmp

Filesize
296KB

Download
memory/5832-12-0x00000000751A0000-0x0000000075951000-memory.dmp

Filesize
7.7MB

Download
memory/5832-14-0x00000000751A0000-0x0000000075951000-memory.dmp

Filesize
7.7MB

Download

Analysis

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