vidar | b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a

General

Target

b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe
Size

191KB
MD5

b1454ca05bb536ef2c1678d1d33ea062
SHA1

4d77ce27ef5e8232d1fa79bb77af356030a9b466
SHA256

b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a
SHA512

60db78cdcd3f95b86f213723aacab95b00a3b435b329d77c72373ae331f5006339a6c469ba31873370607679ee995cd040892fff60a89c0c656ad121a1281ae5
SSDEEP

3072:pCeWMeoy/sFJWfavXStdd/fVPldIbV/UKPP8C0GNyr85UTk4ugWagKYzEO:rWMedUr3W/Jld1KnGGUPkIyEO

Score

10^/10

vidar 9fecf283c2873768afb8beafb33a85e0 credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

Version

10.8

Botnet

9fecf283c2873768afb8beafb33a85e0

C2

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 8 IoCs

stealer

resource	yara_rule
behavioral1/memory/2388-7-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral1/memory/2388-17-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral1/memory/2388-15-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral1/memory/2388-13-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral1/memory/2388-9-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral1/memory/2388-6-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral1/memory/2388-70-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7
behavioral1/memory/2388-71-0x0000000000400000-0x0000000000641000-memory.dmp	family_vidar_v7

Vidar
Vidar is an infostealer based on Arkei stealer.
stealer vidar
Vidar family
vidar
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 3052 set thread context of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30

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	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.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
1992	timeout.exe

Modifies system certificate store 2 TTPs 3 IoCs

evasion spyware trojan

Install Root Certificate

T1553.004

Modify Registry

T1112

description	ioc	Process
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	RegAsm.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25	RegAsm.exe
Set value (data)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\SystemCertificates\AuthRoot\Certificates\5FB7EE0633E259DBAD0C4C9AE6D38F1A61C7DC25\Blob = 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	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
2388	RegAsm.exe
2388	RegAsm.exe
2388	RegAsm.exe

Suspicious use of WriteProcessMemory 22 IoCs

description	pid	Process	procid_target
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 3052 wrote to memory of 2388	3052	b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe	30
PID 2388 wrote to memory of 1324	2388	RegAsm.exe	34
PID 2388 wrote to memory of 1324	2388	RegAsm.exe	34
PID 2388 wrote to memory of 1324	2388	RegAsm.exe	34
PID 2388 wrote to memory of 1324	2388	RegAsm.exe	34
PID 1324 wrote to memory of 1992	1324	cmd.exe	36
PID 1324 wrote to memory of 1992	1324	cmd.exe	36
PID 1324 wrote to memory of 1992	1324	cmd.exe	36
PID 1324 wrote to memory of 1992	1324	cmd.exe	36

C:\Users\Admin\AppData\Local\Temp\b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe
"C:\Users\Admin\AppData\Local\Temp\b8af4212019603dad1b32988c489f871672c5090f8d1013818a4b91363ab038a.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:3052
- 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
  - Modifies system certificate store
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2388
- - 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\GHDHDGHJEBGI" & exit
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:1324
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      System Location Discovery: System Language Discovery
      Delays execution with timeout.exe
      PID:1992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Modify Registry

1

T1112

Subvert Trust Controls

1

T1553

Install Root Certificate

1

T1553.004

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

C:\Users\Admin\AppData\Local\Temp\CabC592.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Local\Temp\TarC5B4.tmp

Filesize
181KB

MD5
4ea6026cf93ec6338144661bf1202cd1

SHA1
a1dec9044f750ad887935a01430bf49322fbdcb7

SHA256
8efbc21559ef8b1bcf526800d8070baad42474ce7198e26fa771dbb41a76b1d8

SHA512
6c7e0980e39aacf4c3689802353f464a08cd17753bd210ee997e5f2a455deb4f287a9ef74d84579dbde49bc96213cd2b8b247723919c412ea980aa6e6bfe218b

Download Submit
memory/2388-13-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2388-5-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2388-7-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2388-17-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2388-71-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2388-15-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2388-70-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2388-11-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2388-9-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2388-6-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2388-3-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/2388-4-0x0000000000400000-0x0000000000641000-memory.dmp

Filesize
2.3MB

Download
memory/3052-1-0x0000000000170000-0x00000000001A4000-memory.dmp

Filesize
208KB

Download
memory/3052-69-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download
memory/3052-0-0x000000007454E000-0x000000007454F000-memory.dmp

Filesize
4KB

Download
memory/3052-20-0x0000000074540000-0x0000000074C2E000-memory.dmp

Filesize
6.9MB

Download

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