263942724d526809d341cc855e2d4cd0277c34f67acaede643af569dbaa9f766

Analysis

max time kernel
217s
max time network
235s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
05/12/2022, 08:32

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General

Target

install.ps1
Size

668B
MD5

2fbf1f1237da3db5944c0a4833859248
SHA1

471d68ca41fd773b2511311f46cd3014b8a4bdf4
SHA256

263942724d526809d341cc855e2d4cd0277c34f67acaede643af569dbaa9f766
SHA512

27c4f665dc1c76105dc5ae0146c78b0fd127a2ff78accad8a095042803b8782398ada081b823e9ceaefd1d50fbea1dce2b5102d8ac89e53428c74f3291bcc104

Score

8^/10

evasion

Malware Config

Signatures

Blocklisted process makes network request 1 IoCs

flow	pid	Process
32	240	powershell.exe

Sets file to hidden 1 TTPs 1 IoCs

Modifies file attributes to stop it showing in Explorer etc.

evasion

Hidden Files and Directories

T1158

pid	Process
2956	attrib.exe

Creates scheduled task(s) 1 TTPs 2 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
2916	schtasks.exe
700	schtasks.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
240	powershell.exe
240	powershell.exe

Suspicious use of AdjustPrivilegeToken 14 IoCs

description	pid	Process
Token: SeDebugPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeSecurityPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeBackupPrivilege	240	powershell.exe
Token: SeSecurityPrivilege	240	powershell.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 240 wrote to memory of 2916	240	powershell.exe	86
PID 240 wrote to memory of 2916	240	powershell.exe	86
PID 240 wrote to memory of 700	240	powershell.exe	87
PID 240 wrote to memory of 700	240	powershell.exe	87
PID 240 wrote to memory of 2956	240	powershell.exe	88
PID 240 wrote to memory of 2956	240	powershell.exe	88

Views/modifies file attributes 1 TTPs 1 IoCs

evasion

Hidden Files and Directories

T1158

pid	Process
2956	attrib.exe

C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
powershell.exe -ExecutionPolicy bypass -File C:\Users\Admin\AppData\Local\Temp\install.ps1
1⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:240
- C:\Windows\system32\schtasks.exe
  "C:\Windows\system32\schtasks.exe" /Create /XML C:\ProgramCache\xmrig\CacheUpdater.xml /tn CacheUpdater
  2⤵
  - Creates scheduled task(s)
  PID:2916
- C:\Windows\system32\schtasks.exe
  "C:\Windows\system32\schtasks.exe" /Create /XML C:\ProgramCache\xmrig\CacheUpdaterCancel.xml /tn CacheUpdaterCancel
  2⤵
  - Creates scheduled task(s)
  PID:700
- C:\Windows\system32\attrib.exe
  "C:\Windows\system32\attrib.exe" +s +h c:\ProgramCache
  2⤵
  - Sets file to hidden
  - Views/modifies file attributes
  PID:2956

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Hidden Files and Directories

T1158

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Hidden Files and Directories

T1158

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/240-132-0x0000026EC9D80000-0x0000026EC9DA2000-memory.dmp

Filesize
136KB

Download
memory/240-133-0x00007FFF684A0000-0x00007FFF68F61000-memory.dmp

Filesize
10.8MB

Download
memory/240-134-0x00007FFF684A0000-0x00007FFF68F61000-memory.dmp

Filesize
10.8MB

Download