3968a850f5bc70d954bb5609d929f181a6f05a117fa3be4531cbd96cedfde5d6

Analysis

max time kernel
119s
max time network
120s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
19/12/2024, 22:23

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General

Target
LBB_PS1.ps1
Size 466KB
Sample241219-2a2s3sskck
SHA256 20dd91f589ea77b84c8ed0f67bce837d1f4d7688e56754e709d467db0bea03c9
MD5 17a7cd1ead2d35ed5d69c71d4fd7386d
SHA1 734400d4444b88fe3848c80e3dba2ad9a5155c56
SHA512 7d5cd9b042229d1076a587b75594a002d379396d6ec889a8aee457a6a5a399130ae0a43fe0863adae23e32e46a7d17d4b55bfc2564cb17e579751161f6778828
SSDEEP 1536:Kk0H/lFq+N1mfoRlNyjZk11iBQcIY1Y+qFMJFOgvZ/wpKDcalOGODPNTbJYj6CJI:VA
MD5 SHA1 SHA512 SSDEEP

Score

5^/10

discovery execution

Malware Config

Signatures

Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs

pid	Process
2456	powershell.exe

Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

Using powershell.exe command.

execution

PowerShell

T1059.001

pid	Process
1724	powershell.exe

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

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\.kF0wnCN24	powershell.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\.kF0wnCN24\ = "kF0wnCN24"	powershell.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\kF0wnCN24\DefaultIcon	powershell.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\kF0wnCN24	powershell.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\kF0wnCN24\DefaultIcon\ = "C:\\ProgramData\\kF0wnCN24.ico"	powershell.exe

Suspicious behavior: EnumeratesProcesses 8 IoCs

pid	Process
1724	powershell.exe
1724	powershell.exe
1724	powershell.exe
2456	powershell.exe
2456	powershell.exe
2456	powershell.exe
2456	powershell.exe
2456	powershell.exe

Suspicious use of AdjustPrivilegeToken 24 IoCs

description	pid	Process
Token: SeDebugPrivilege	1724	powershell.exe
Token: SeDebugPrivilege	2456	powershell.exe
Token: SeAssignPrimaryTokenPrivilege	2456	powershell.exe
Token: SeBackupPrivilege	2456	powershell.exe
Token: SeDebugPrivilege	2456	powershell.exe
Token: 36	2456	powershell.exe
Token: SeImpersonatePrivilege	2456	powershell.exe
Token: SeIncBasePriorityPrivilege	2456	powershell.exe
Token: SeIncreaseQuotaPrivilege	2456	powershell.exe
Token: 33	2456	powershell.exe
Token: SeManageVolumePrivilege	2456	powershell.exe
Token: SeProfSingleProcessPrivilege	2456	powershell.exe
Token: SeRestorePrivilege	2456	powershell.exe
Token: SeSecurityPrivilege	2456	powershell.exe
Token: SeSystemProfilePrivilege	2456	powershell.exe
Token: SeTakeOwnershipPrivilege	2456	powershell.exe
Token: SeShutdownPrivilege	2456	powershell.exe
Token: SeDebugPrivilege	2456	powershell.exe
Token: SeBackupPrivilege	2456	powershell.exe
Token: SeBackupPrivilege	2456	powershell.exe
Token: SeSecurityPrivilege	2456	powershell.exe
Token: SeBackupPrivilege	2436	vssvc.exe
Token: SeRestorePrivilege	2436	vssvc.exe
Token: SeAuditPrivilege	2436	vssvc.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 1724 wrote to memory of 2456	1724	powershell.exe	31
PID 1724 wrote to memory of 2456	1724	powershell.exe	31
PID 1724 wrote to memory of 2456	1724	powershell.exe	31
PID 1724 wrote to memory of 2456	1724	powershell.exe	31

Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
ransomware

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\LBB_PS1.ps1
1⤵
- Command and Scripting Interpreter: PowerShell
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1724
- C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
  "C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe" -ex bypass -nonI C:\Users\Admin\AppData\Local\Temp\LBB_PS1.ps1
  2⤵
  - Suspicious use of NtSetInformationThreadHideFromDebugger
  - System Location Discovery: System Language Discovery
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2456

C:\Windows\system32\vssvc.exe
C:\Windows\system32\vssvc.exe
1⤵
- Suspicious use of AdjustPrivilegeToken
PID:2436

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Command and Scripting Interpreter

T1059

PowerShell

T1059.001

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

52MLPRDTNKZR5RRXG4U9.temp

Path C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\52MLPRDTNKZR5RRXG4U9.temp
Size 7KB
SHA256 d42dcb823d21bdb84e11fa15af66a87dbe9924f1cf55589e6cb54b2ba6dfcfae
MD5 a2c63059bc8fb7ee60937d53c6034897
SHA1 570f40d3aa6d0c060b5b8c6c45555ba462eaeaeb
SHA512 fd8abbcd6bfa7fc65fc9e4d21ce5ad2d808ff216333b9de71f48788880dd138727a0f8acde624a45d344eccb6d777a6478ecec570191aa3ce5f8f4205f0b06ea
SSDEEP 96:cRb6Cx3M8SnqvsqvJCwol2Rb6Cx3M8SnqvsEHyqvJCwor3VGgGQHQJg7BvXlUVLP:kn3GUolan3GAHnor3V0hJg7BvKP
MD5 SHA1 SHA512 SSDEEP

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memory/1724-4-0x000007FEF5ACE000-0x000007FEF5ACF000-memory.dmp

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memory/1724-5-0x000000001B670000-0x000000001B952000-memory.dmp

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memory/1724-6-0x0000000001F70000-0x0000000001F78000-memory.dmp

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memory/1724-7-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

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memory/1724-8-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

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memory/1724-9-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

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memory/1724-10-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

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memory/1724-11-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

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memory/1724-12-0x000007FEF5810000-0x000007FEF61AD000-memory.dmp

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memory/2456-15-0x0000000005520000-0x0000000005543000-memory.dmp

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memory/2456-22-0x0000000005520000-0x0000000005543000-memory.dmp

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