434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5

Analysis

max time kernel
41s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
03/12/2022, 02:01

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General

Target

434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5.exe
Size

376KB
MD5

cdf297231e23d96a030d0f9e0e2af590
SHA1

083b9a924b714324c443230d124609cfa812bfc8
SHA256

434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5
SHA512

7d40adfd1d677baf5180cd08ee350df1ca623043f65ee85cbfaa15ee0166013a97336c9779b3c4ac42159a536172d2821ec22a0f044b1ac534d120240db1c2b7
SSDEEP

6144:i1toUIGHWDGjv6wllU8jHIYNq+MFTW2k1Q0Era4on8DsUL9HcK:6oUpW65lU8jztMFTW2+6+58DTz

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\userinit = "userinit.exe,C:\\Windows\\system32\\ntos.exe,"	434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5.exe
File created	C:\Windows\SysWOW64\ntos.exe	434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1788	434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5.exe
1788	434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1788	434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5.exe

C:\Users\Admin\AppData\Local\Temp\434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5.exe
"C:\Users\Admin\AppData\Local\Temp\434d8d54d039e42c4f16ea47a8735a3c0b922d970d7d2a402ffc28329a07daa5.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1788

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

T1004

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1788-54-0x0000000076321000-0x0000000076323000-memory.dmp

Filesize
8KB

Download
memory/1788-55-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download