84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246

Analysis

max time kernel
45s
max time network
50s
platform
windows7_x64
resource
win7-20220901-en
resource tags

arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
submitted
30-10-2022 07:22

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General

Target

84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246.exe
Size

46KB
MD5

93bd57e22eb8841e8021fad9fbfef130
SHA1

73df3cab59ade17ea45a724df061483ef0338be5
SHA256

84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246
SHA512

ae9e9043b08d23f0990223b2fe70a5c032376ec7daa532e2b78b2657d5fcc8810fee8495020b7bfad681bc24cd423d7ee612ef765e72ab7ddaa8df0c4c06b4f3
SSDEEP

768:b7SD6iAI38wJIDU1WWUl9/MvaN85YtbZ4AOAXQyPn//nLgiF7O8KFGmLHHLF:b1i5R1Wdl9Cx5YbZQAgyP/vLODFG2H

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,"	84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\SysWOW64\ntos.exe	84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246.exe
File created	C:\Windows\SysWOW64\ntos.exe	84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
1324	84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246.exe
1324	84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	1324	84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246.exe

C:\Users\Admin\AppData\Local\Temp\84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246.exe
"C:\Users\Admin\AppData\Local\Temp\84cccf04cbe017eabf8c4a9dec871df3782a9a9bc2fdcb66fd5956b96ee8e246.exe"
1⤵
- Modifies WinLogon for persistence
- Drops file in System32 directory
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1324

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

Replay Monitor

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Downloads

memory/1324-54-0x0000000075AC1000-0x0000000075AC3000-memory.dmp

Filesize
8KB

Download
memory/1324-55-0x0000000000400000-0x0000000000425000-memory.dmp

Filesize
148KB

Download