imminent | 28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95 | Triage

Analysis

max time kernel
174s
max time network
194s
platform
windows10-2004_x64
resource
win10v2004-20221111-en
resource tags

arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
submitted
23-11-2022 14:43

Sharing

Report Analysis Logs

General

Target

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
Size

509KB
MD5

2d59e22e6944200d8608b02d3e94f23b
SHA1

7fa019f86180014abc5a3c8521bcbc883b5fff24
SHA256

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95
SHA512

32b66dc06b511ce0b188685967b9179eb39dbff7f20a30737ee034e2402dbe606f6372a6bb2a64b236a1b41a65253a29a1de1f1882b33e0cb46d3bf25462db31
SSDEEP

6144:6rQFs7bn4vk9O8NZ9rev5CqMYKeSVjWpr/kUmcB1SrKSo0HZM:6vO+URmW8KycBMpZS

Score

10^/10

imminent persistence spyware trojan

Malware Config

Signatures

Imminent RAT
Remote-access trojan based on Imminent Monitor remote admin software.
trojan spyware imminent

Modifies WinLogon for persistence 2 TTPs 1 IoCs

Winlogon Helper DLL

Modify Registry

Processes:

reg.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "C:\\Users\\Admin\\AppData\\Roaming\\WinUpdate\\WinUpdate.exe,explorer.exe"	reg.exe

Checks computer location settings 2 TTPs 1 IoCs

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

Query Registry

System Information Discovery

Processes:

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

description	ioc	process
Key value queried	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Control Panel\International\Geo\Nation	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

Drops desktop.ini file(s) 2 IoCs

Processes:

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

description	ioc	process
File created	C:\Windows\assembly\Desktop.ini	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

description	pid	process	target process
PID 1504 set thread context of 4128	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

Drops file in Windows directory 3 IoCs

Processes:

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

description	ioc	process
File opened for modification	C:\Windows\assembly	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
File created	C:\Windows\assembly\Desktop.ini	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
File opened for modification	C:\Windows\assembly\Desktop.ini	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

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

System Information Discovery
T1082

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

pid	process
1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

pid process

4128 28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

description	pid	process
Token: SeDebugPrivilege	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
Token: SeDebugPrivilege	4128	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

pid process

4128 28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

Suspicious use of WriteProcessMemory 14 IoCs

Processes:

28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.execmd.exe

description	pid	process	target process
PID 1504 wrote to memory of 3180	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	cmd.exe
PID 1504 wrote to memory of 3180	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	cmd.exe
PID 1504 wrote to memory of 3180	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	cmd.exe
PID 3180 wrote to memory of 4952	3180	cmd.exe	reg.exe
PID 3180 wrote to memory of 4952	3180	cmd.exe	reg.exe
PID 3180 wrote to memory of 4952	3180	cmd.exe	reg.exe
PID 1504 wrote to memory of 4128	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
PID 1504 wrote to memory of 4128	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
PID 1504 wrote to memory of 4128	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
PID 1504 wrote to memory of 4128	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
PID 1504 wrote to memory of 4128	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
PID 1504 wrote to memory of 4128	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
PID 1504 wrote to memory of 4128	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
PID 1504 wrote to memory of 4128	1504	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe	28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe

C:\Users\Admin\AppData\Local\Temp\28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
"C:\Users\Admin\AppData\Local\Temp\28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1504

C:\Windows\SysWOW64\cmd.exe
"C:\Windows\system32\cmd.exe" /c reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\WinUpdate\WinUpdate.exe,explorer.exe"
2⤵
- Suspicious use of WriteProcessMemory
PID:3180

C:\Windows\SysWOW64\reg.exe
reg add "HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon" /f /v shell /t REG_SZ /d "C:\Users\Admin\AppData\Roaming\WinUpdate\WinUpdate.exe,explorer.exe"
3⤵
- Modifies WinLogon for persistence
PID:4952

C:\Users\Admin\AppData\Local\Temp\28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe
"C:\Users\Admin\AppData\Local\Temp\28c78b79dbd42cf8c1e6d8170c3b257246af1fa0ce52fd8e4af741f2d2fd5e95.exe"
2⤵
- Drops desktop.ini file(s)
- Drops file in Windows directory
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
PID:4128

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

Credential Access

Discovery

Query Registry

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1504-132-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/1504-133-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/3180-134-0x0000000000000000-mapping.dmp

Download
memory/4128-136-0x0000000000000000-mapping.dmp

Download
memory/4128-138-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/4128-139-0x0000000074E50000-0x0000000075401000-memory.dmp

Filesize
5.7MB

Download
memory/4952-135-0x0000000000000000-mapping.dmp

Download