13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed

Analysis

max time kernel
189s
max time network
196s
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 15:45

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General

Target

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
Size

1.4MB
MD5

cc010a9788fb94a30ffc7e7ce3572c74
SHA1

ef63edaecff71c8ca3aa3f3be5ceb1a18bd38672
SHA256

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed
SHA512

fcbcc4efd16561411349e55e3461064ac642910053ecd30459cb4bc27895b3736616fd57600f82343a0597a62a002fcd68c6b77336954f104324b05e3f623fc3
SSDEEP

24576:uRmJkcoQricOIQxiZY1iaHfPFt+j/KIprM8KJGVG18XRjypuVPAZNbz:7JZoQrbTFZY1iaHfttw/RMNkWOR+AVPO

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "%AppData%\\Microsoft\\winlogon.exe,explorer.exe"	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

Adds policy Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run\Adobe Reader = "%AppData%\\Microsoft\\winlogon.exe"	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\Software\Microsoft\Windows\CurrentVersion\Run	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-4246620582-653642754-1174164128-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Adobe Reader = "%AppData%\\Microsoft\\winlogon.exe"	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

description	pid	process	target process
PID 1300 set thread context of 2092	1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe

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

System Information Discovery
T1082
Program crash 1 IoCs

Processes:

WerFault.exe

pid pid_target process target process

1376 2092 WerFault.exe svchost.exe

pid	pid_target	process	target process
1376	2092	WerFault.exe	svchost.exe

Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

pid	process
1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

Suspicious use of SendNotifyMessage 3 IoCs

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

pid	process
1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

Suspicious use of WriteProcessMemory 4 IoCs

Processes:

13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe

description	pid	process	target process
PID 1300 wrote to memory of 2092	1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 1300 wrote to memory of 2092	1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 1300 wrote to memory of 2092	1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe
PID 1300 wrote to memory of 2092	1300	13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe	svchost.exe

C:\Users\Admin\AppData\Local\Temp\13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe
"C:\Users\Admin\AppData\Local\Temp\13509a38f18f8e07c11982a59642d90cd55d910482b8bab753949231211933ed.exe"
1⤵
- Modifies WinLogon for persistence
- Adds policy Run key to start application
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:1300

C:\Windows\SysWOW64\svchost.exe
"C:\Windows\System32\svchost.exe"
2⤵
PID:2092

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -u -p 2092 -s 84
3⤵
- Program crash
PID:1376

C:\Windows\SysWOW64\WerFault.exe
C:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 2092 -ip 2092
1⤵
PID:3820

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

T1060

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2092-132-0x0000000000000000-mapping.dmp

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