64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10

Analysis

max time kernel
162s
max time network
169s
platform
windows10-2004_x64
resource
win10v2004-20220812-en
resource tags

arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
submitted
04/10/2022, 03:03

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General

Target

64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
Size

27KB
MD5

02112571254a261a99751ea3f7a82160
SHA1

66355b0c520f0220c52d3c3fe36dc7f08e3937ee
SHA256

64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10
SHA512

3a46b91b62e29ca44201f6c96010e76b48aaf4aaef301aece8e809212975d301706bc01956de0741baafca88decc5ca2ca7c0870b327e569b5951ae68af68be3
SSDEEP

768:EJWeqv4iWpqXdgkiYCf6CX4t6CKwJ6dB1pR0d9TSx5nIC2:TeWViYkboQCKwJqB1Q1h

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\WOW6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\shell = "Explorer.exe C:\\Windows/system32/SVCH0ST.EXE"	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.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\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Agent = "C:\\Windows\\System32\\SVCH0ST.exe"	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\SVCH0ST.EXE	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
File opened for modification	C:\Windows\SysWOW64\SVCH0ST.EXE	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\system\wincirl.com	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
File opened for modification	C:\Windows\system\wincirl.com	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe

Modifies registry class 1 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000_Classes\Local Settings	Explorer.exe

Suspicious behavior: EnumeratesProcesses 16 IoCs

pid	Process
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 4144 wrote to memory of 828	4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe	82
PID 4144 wrote to memory of 828	4144	64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe	82

C:\Users\Admin\AppData\Local\Temp\64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe
"C:\Users\Admin\AppData\Local\Temp\64bf709f72324fd88dad34b222efd8f4c99323591480231b0f533ff34de27c10.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Drops file in System32 directory
- Drops file in Windows directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4144
- C:\Windows\Explorer.exe
  C:\Windows\Explorer.exe
  2⤵
  - Modifies registry class
  PID:828

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/4144-132-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/4144-136-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download