vidar | 8b34e6283a4e30009a0ad792723817cfb0d5cdbbbe119948aa6e887bd59e1620

Reason

Machine shutdown

General

Target

66bddfcb52736_vidar.exe
Size

190KB
MD5

fedb687ed23f77925b35623027f799bb
SHA1

7f27d0290ecc2c81bf2b2d0fa1026f54fd687c81
SHA256

325396d5ffca8546730b9a56c2d0ed99238d48b5e1c3c49e7d027505ea13b8d1
SHA512

6d1fa39560f4d7ca57905bc57d615acf96b1ef69ca2a4d7c0353278e8d4466298ed87f514463c49d671cb0e3b6a269a78636a10a1e463dba5c83fe067dc5df18
SSDEEP

3072:XqsEJybpRHuJKKBardRei4UGvI96/ZO6RAkeOCeP9sZy28se:XqsMyNRHuKikUi42KZO6PffmZy2d

Score

10^/10

vidar credential_access discovery spyware stealer

Malware Config

Extracted

Family

vidar

C2

https://steamcommunity.com/profiles/76561199751190313

https://t.me/pech0nk

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 19 IoCs

stealer

resource	yara_rule
behavioral2/memory/2648-4-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-9-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-7-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-15-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-16-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-32-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-33-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-49-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-50-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-75-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-78-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/5072-105-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-127-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/2648-128-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/5072-131-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/5072-132-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/5072-133-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/5072-148-0x0000000000400000-0x0000000000643000-memory.dmp	family_vidar_v7
behavioral2/memory/5072-149-0x0000000000400000-0x0000000000643000-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

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-2412658365-3084825385-3340777666-1000\Control Panel\International\Geo\Nation	RegAsm.exe

Executes dropped EXE 1 IoCs

pid	Process
516	IIEBKJECFC.exe

Loads dropped DLL 2 IoCs

pid	Process
2648	RegAsm.exe
2648	RegAsm.exe

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

Credentials In Files
T1552.001
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

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 2 IoCs

description	pid	Process	procid_target
PID 1304 set thread context of 2648	1304	66bddfcb52736_vidar.exe	86
PID 516 set thread context of 5072	516	IIEBKJECFC.exe	99

Browser Information Discovery 1 TTPs
Enumerate browser information.
discovery

Browser Information Discovery
T1217
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	66bddfcb52736_vidar.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	IIEBKJECFC.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

Delays execution with timeout.exe 1 IoCs

evasion

pid	Process
4904	timeout.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

pid	Process
2648	RegAsm.exe
2648	RegAsm.exe
2648	RegAsm.exe
2648	RegAsm.exe

Suspicious use of WriteProcessMemory 23 IoCs

description	pid	Process	procid_target
PID 1304 wrote to memory of 2648	1304	66bddfcb52736_vidar.exe	86
PID 1304 wrote to memory of 2648	1304	66bddfcb52736_vidar.exe	86
PID 1304 wrote to memory of 2648	1304	66bddfcb52736_vidar.exe	86
PID 1304 wrote to memory of 2648	1304	66bddfcb52736_vidar.exe	86
PID 1304 wrote to memory of 2648	1304	66bddfcb52736_vidar.exe	86
PID 1304 wrote to memory of 2648	1304	66bddfcb52736_vidar.exe	86
PID 1304 wrote to memory of 2648	1304	66bddfcb52736_vidar.exe	86
PID 1304 wrote to memory of 2648	1304	66bddfcb52736_vidar.exe	86
PID 1304 wrote to memory of 2648	1304	66bddfcb52736_vidar.exe	86
PID 1304 wrote to memory of 2648	1304	66bddfcb52736_vidar.exe	86
PID 2648 wrote to memory of 516	2648	RegAsm.exe	97
PID 2648 wrote to memory of 516	2648	RegAsm.exe	97
PID 2648 wrote to memory of 516	2648	RegAsm.exe	97
PID 516 wrote to memory of 5072	516	IIEBKJECFC.exe	99
PID 516 wrote to memory of 5072	516	IIEBKJECFC.exe	99
PID 516 wrote to memory of 5072	516	IIEBKJECFC.exe	99
PID 516 wrote to memory of 5072	516	IIEBKJECFC.exe	99
PID 516 wrote to memory of 5072	516	IIEBKJECFC.exe	99
PID 516 wrote to memory of 5072	516	IIEBKJECFC.exe	99
PID 516 wrote to memory of 5072	516	IIEBKJECFC.exe	99
PID 516 wrote to memory of 5072	516	IIEBKJECFC.exe	99
PID 516 wrote to memory of 5072	516	IIEBKJECFC.exe	99
PID 516 wrote to memory of 5072	516	IIEBKJECFC.exe	99

C:\Users\Admin\AppData\Local\Temp\66bddfcb52736_vidar.exe
"C:\Users\Admin\AppData\Local\Temp\66bddfcb52736_vidar.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1304
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
  2⤵
  - Checks computer location settings
  - Loads dropped DLL
  - System Location Discovery: System Language Discovery
  - Checks processor information in registry
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2648
- - C:\ProgramData\IIEBKJECFC.exe
    "C:\ProgramData\IIEBKJECFC.exe"
    3⤵
    - Executes dropped EXE
    - Suspicious use of SetThreadContext
    - System Location Discovery: System Language Discovery
    - Suspicious use of WriteProcessMemory
    PID:516
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      System Location Discovery: System Language Discovery
      PID:5072
- - C:\ProgramData\EHDAFIJJEC.exe
    "C:\ProgramData\EHDAFIJJEC.exe"
    3⤵
    PID:1912
  - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      4⤵
      PID:4780
- - C:\Windows\SysWOW64\cmd.exe
    "C:\Windows\system32\cmd.exe" /c timeout /t 10 & rd /s /q "C:\ProgramData\BFCFBKKKFHCF" & exit
    3⤵
    PID:1376
  - - C:\Windows\SysWOW64\timeout.exe
      timeout /t 10
      4⤵
      Delays execution with timeout.exe
      PID:4904

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

4

T1552

Credentials In Files

4

T1552.001

Discovery

Browser Information Discovery

Query Registry

System Information Discovery

3

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Data from Local System

3

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\ProgramData\DHCGIDHDAKJE\HJJEGC

Filesize
160KB

MD5
f310cf1ff562ae14449e0167a3e1fe46

SHA1
85c58afa9049467031c6c2b17f5c12ca73bb2788

SHA256
e187946249cd390a3c1cf5d4e3b0d8f554f9acdc416bf4e7111fff217bb08855

SHA512
1196371de08c964268c44103ccaed530bda6a145df98e0f480d8ee5ad58cb6fb33ca4c9195a52181fe864726dcf52e6a7a466d693af0cda43400a3a7ef125fad

Download Submit
C:\ProgramData\EHDAFIJJEC.exe

Filesize
276KB

MD5
a2fb40daa2aae2b589e7338057471282

SHA1
8b10a7281f347aa862f365b5bca41c87a8be472c

SHA256
409f89268972ae1bff240cc395cc31a3b3876b96f4d6e56fcc5fef74001fcf27

SHA512
48daa8f783b24451082c4c339e9f3f704037f89632b55ebf3b6d5b13a85f077785a8ff60f5d35eed8e03fc90543ec5df1b3a1e0dcdf60b7de5a0dc704ffac22a

Download Submit
C:\ProgramData\IIEBKJECFC.exe

Filesize
190KB

MD5
fedb687ed23f77925b35623027f799bb

SHA1
7f27d0290ecc2c81bf2b2d0fa1026f54fd687c81

SHA256
325396d5ffca8546730b9a56c2d0ed99238d48b5e1c3c49e7d027505ea13b8d1

SHA512
6d1fa39560f4d7ca57905bc57d615acf96b1ef69ca2a4d7c0353278e8d4466298ed87f514463c49d671cb0e3b6a269a78636a10a1e463dba5c83fe067dc5df18

Download Submit
C:\ProgramData\mozglue.dll

Filesize
593KB

MD5
c8fd9be83bc728cc04beffafc2907fe9

SHA1
95ab9f701e0024cedfbd312bcfe4e726744c4f2e

SHA256
ba06a6ee0b15f5be5c4e67782eec8b521e36c107a329093ec400fe0404eb196a

SHA512
fbb446f4a27ef510e616caad52945d6c9cc1fd063812c41947e579ec2b54df57c6dc46237ded80fca5847f38cbe1747a6c66a13e2c8c19c664a72be35eb8b040

Download Submit
C:\ProgramData\nss3.dll

Filesize
2.0MB

MD5
1cc453cdf74f31e4d913ff9c10acdde2

SHA1
6e85eae544d6e965f15fa5c39700fa7202f3aafe

SHA256
ac5c92fe6c51cfa742e475215b83b3e11a4379820043263bf50d4068686c6fa5

SHA512
dd9ff4e06b00dc831439bab11c10e9b2ae864ea6e780d3835ea7468818f35439f352ef137da111efcdf2bb6465f6ca486719451bf6cf32c6a4420a56b1d64571

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GENTSNHI\76561199751190313[1].htm

Filesize
33KB

MD5
4790898ecc8df50cfd5591a1698d403c

SHA1
59e85f13a5118da97064f0461aa30ad9316fc0be

SHA256
1872fb42b2a83c5f7bc06c154cf3f68e879e89183b755b75dd3eacdd5859d4db

SHA512
a4a9924e943b45393f4e21166b57425ea28f6c6d285922c92ae8a191c1252707fd2afd7a4e42c81961291611bdd4870581ffe3af51e7f88ff66b5e3a1e9f89e3

Download Submit
memory/516-106-0x0000000072810000-0x0000000072FC0000-memory.dmp

Filesize
7.7MB

Download
memory/516-103-0x0000000072810000-0x0000000072FC0000-memory.dmp

Filesize
7.7MB

Download
memory/516-95-0x000000007281E000-0x000000007281F000-memory.dmp

Filesize
4KB

Download
memory/1304-0-0x000000007521E000-0x000000007521F000-memory.dmp

Filesize
4KB

Download
memory/1304-11-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1304-1-0x0000000000D00000-0x0000000000D36000-memory.dmp

Filesize
216KB

Download
memory/1304-57-0x0000000075210000-0x00000000759C0000-memory.dmp

Filesize
7.7MB

Download
memory/1912-120-0x0000000000BE0000-0x0000000000C2C000-memory.dmp

Filesize
304KB

Download
memory/2648-32-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-18-0x0000000021EB0000-0x000000002210F000-memory.dmp

Filesize
2.4MB

Download
memory/2648-75-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-78-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-49-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-33-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-50-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-4-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-16-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-15-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-7-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-9-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-128-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/2648-127-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/4780-123-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/4780-125-0x0000000000400000-0x000000000044C000-memory.dmp

Filesize
304KB

Download
memory/5072-105-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/5072-132-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/5072-133-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/5072-134-0x0000000020040000-0x000000002029F000-memory.dmp

Filesize
2.4MB

Download
memory/5072-148-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/5072-131-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download
memory/5072-149-0x0000000000400000-0x0000000000643000-memory.dmp

Filesize
2.3MB

Download

Resubmissions

Analysis

Sharing

Errors

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads