3ab004eb94aef7dd8ae80a6619a86507f6161c6a102e1f3faa114ff3d3a2c218

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
02/02/2024, 14:08

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General

Target

89b648751346dba4a9089a84f801a05d.exe
Size

248KB
MD5

89b648751346dba4a9089a84f801a05d
SHA1

1ea7a06e2a0ac3d6c3391bbda697d73b52da3bab
SHA256

3ab004eb94aef7dd8ae80a6619a86507f6161c6a102e1f3faa114ff3d3a2c218
SHA512

3c2dbb2a8595e720262bcbccb068d7e6f5decf46a9a60eadf6d20dfa6161dfc12992e2d1701f105577e31a18c8c979d1b61067ab327db915382e308fd3c8359d
SSDEEP

6144:SdPKzhTpU9R4cOqjlQuIm3U2gTrNZgJumX2G:sKzhTWkc1lQnTuumX2G

Score

10^/10

discovery persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1547.004

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\\89B648~1.EXE,"	89b648751346dba4a9089a84f801a05d.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3803511929-1339359695-2191195476-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\userinit = "C:\\Users\\Admin\\AppData\\Local\\Temp\\89B648~1.EXE"	89b648751346dba4a9089a84f801a05d.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Modifies WinLogon 2 TTPs 2 IoCs

persistence

Winlogon Helper DLL

T1547.004

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\System = "C:\\Users\\Admin\\AppData\\Local\\Temp\\89B648~1.EXE"	89b648751346dba4a9089a84f801a05d.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\97d6404e = "B"	89b648751346dba4a9089a84f801a05d.exe

Suspicious behavior: EnumeratesProcesses 44 IoCs

pid	Process
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe
4936	89b648751346dba4a9089a84f801a05d.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeSecurityPrivilege	4936	89b648751346dba4a9089a84f801a05d.exe
Token: SeSecurityPrivilege	4936	89b648751346dba4a9089a84f801a05d.exe
Token: SeSecurityPrivilege	4936	89b648751346dba4a9089a84f801a05d.exe
Token: SeSecurityPrivilege	4936	89b648751346dba4a9089a84f801a05d.exe

C:\Users\Admin\AppData\Local\Temp\89b648751346dba4a9089a84f801a05d.exe
"C:\Users\Admin\AppData\Local\Temp\89b648751346dba4a9089a84f801a05d.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Modifies WinLogon
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4936

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Network Service Discovery

T1046

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/4936-0-0x000000007FDE0000-0x000000007FE49000-memory.dmp

Filesize
420KB

Download
memory/4936-1-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/4936-4-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-6-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-3-0x0000000000A90000-0x0000000000B42000-memory.dmp

Filesize
712KB

Download
memory/4936-10-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-9-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-7-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-57-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-63-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-65-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-69-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-76-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-80-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-78-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-77-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-82-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-91-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-94-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-100-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-103-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-107-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-111-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-112-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-109-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-104-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-96-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-93-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-92-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-90-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-86-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-84-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-66-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-64-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-62-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-61-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-60-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-59-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-58-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download
memory/4936-4285-0x000000007FDE0000-0x000000007FE49000-memory.dmp

Filesize
420KB

Download
memory/4936-4962-0x0000000000400000-0x000000000046D000-memory.dmp

Filesize
436KB

Download
memory/4936-6441-0x0000000002850000-0x0000000002908000-memory.dmp

Filesize
736KB

Download