b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688

Analysis

max time kernel
184s
max time network
189s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
20/10/2022, 08:13

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General

Target

b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
Size

272KB
MD5

4e5c6eaf59d53589015827dc5eb6e4a0
SHA1

1d3abe6dce3bec734bfd6f880ab80ad56c4704d4
SHA256

b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688
SHA512

2a3145c9c1036f45a3b92348564f3bfc285bc49eef8074d0e2863ff30009b3684da2f20a3cc28b5ab789ca5256282d4b394658b2e29894c180f5e1252d39cf18
SSDEEP

6144:TJq9MWSpK74kpKuF/hONulCjukvO4jzWs1+6ptIXgoS:1CMWSpKVKooccjuEOwWs1+9j

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\userinit = "C:\\Windows\\system32\\userinit.exe,C:\\Users\\Admin\\AppData\\Local\\Temp\\B9D957~1.EXE,"	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2292972927-2705560509-2768824231-1000\Software\Microsoft\Windows\CurrentVersion\Run\userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\B9D957~1.EXE"	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\3587b146 = "ñÌ¦ÁÙk\u0090Õß\x03€Ïò„\u008dß\vr\x0f"	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\System = "C:\\Users\\Admin\\AppData\\Local\\Temp\\B9D957~1.EXE"	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe

Suspicious behavior: EnumeratesProcesses 7 IoCs

pid	Process
1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
Token: SeSecurityPrivilege	1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
Token: SeSecurityPrivilege	1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
Token: SeSecurityPrivilege	1656	b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe

C:\Users\Admin\AppData\Local\Temp\b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe
"C:\Users\Admin\AppData\Local\Temp\b9d957b241c12478ca919c119088507229f673d40711382c09066edc1ca7d688.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1656

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

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1656-54-0x0000000074D61000-0x0000000074D63000-memory.dmp

Filesize
8KB

Download
memory/1656-55-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1656-56-0x00000000023C0000-0x000000000247E000-memory.dmp

Filesize
760KB

Download
memory/1656-57-0x00000000023C0000-0x000000000247E000-memory.dmp

Filesize
760KB

Download
memory/1656-58-0x00000000023C0000-0x000000000247E000-memory.dmp

Filesize
760KB

Download
memory/1656-60-0x00000000023C0000-0x000000000247E000-memory.dmp

Filesize
760KB

Download
memory/1656-61-0x00000000023C0000-0x000000000247E000-memory.dmp

Filesize
760KB

Download
memory/1656-63-0x00000000023C0000-0x000000000247E000-memory.dmp

Filesize
760KB

Download
memory/1656-64-0x0000000002580000-0x0000000002645000-memory.dmp

Filesize
788KB

Download
memory/1656-65-0x0000000010000000-0x000000001004E000-memory.dmp

Filesize
312KB

Download
memory/1656-66-0x0000000002580000-0x0000000002645000-memory.dmp

Filesize
788KB

Download