dd5e0bdf00d42f08ee523ea63931599197e6fe95bb5ddbcaff6991c0eb8fb744

Analysis

max time kernel
117s
max time network
122s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
18-01-2024 22:18

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General

Target

662cc9247464ebf9fd0bb2d8b3e3e339.exe
Size

1.3MB
MD5

662cc9247464ebf9fd0bb2d8b3e3e339
SHA1

587c1c05b877fa247b58ee6758b81b34f188f1ed
SHA256

dd5e0bdf00d42f08ee523ea63931599197e6fe95bb5ddbcaff6991c0eb8fb744
SHA512

cabc89dc2a020757d07b2e19e7d7c775e13412d99569e3263dc98219c1bfa025c3e81aededbba7a6c7fd451668172e0ce07a66055e9376fd80bf96f937c958a1
SSDEEP

24576:FuiLFSlMCcG88M3bI468vgmnnCQqOkovZPQEp1lvtmE4v:FNLFVCpxM3lb6WzQk14v

Score

10^/10

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\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exe,C:\\Windows\\host32.exe,"	662cc9247464ebf9fd0bb2d8b3e3e339.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1308 set thread context of 2400	1308	662cc9247464ebf9fd0bb2d8b3e3e339.exe	28

Drops file in Windows directory 2 IoCs

description	ioc	Process
File opened for modification	C:\Windows\host32.exe	662cc9247464ebf9fd0bb2d8b3e3e339.exe
File created	C:\Windows\host32.exe	662cc9247464ebf9fd0bb2d8b3e3e339.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
2400	662cc9247464ebf9fd0bb2d8b3e3e339.exe
2400	662cc9247464ebf9fd0bb2d8b3e3e339.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	2400	662cc9247464ebf9fd0bb2d8b3e3e339.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1308 wrote to memory of 2400	1308	662cc9247464ebf9fd0bb2d8b3e3e339.exe	28
PID 1308 wrote to memory of 2400	1308	662cc9247464ebf9fd0bb2d8b3e3e339.exe	28
PID 1308 wrote to memory of 2400	1308	662cc9247464ebf9fd0bb2d8b3e3e339.exe	28
PID 1308 wrote to memory of 2400	1308	662cc9247464ebf9fd0bb2d8b3e3e339.exe	28
PID 1308 wrote to memory of 2400	1308	662cc9247464ebf9fd0bb2d8b3e3e339.exe	28
PID 1308 wrote to memory of 2400	1308	662cc9247464ebf9fd0bb2d8b3e3e339.exe	28
PID 1308 wrote to memory of 2400	1308	662cc9247464ebf9fd0bb2d8b3e3e339.exe	28
PID 1308 wrote to memory of 2400	1308	662cc9247464ebf9fd0bb2d8b3e3e339.exe	28

C:\Users\Admin\AppData\Local\Temp\662cc9247464ebf9fd0bb2d8b3e3e339.exe
"C:\Users\Admin\AppData\Local\Temp\662cc9247464ebf9fd0bb2d8b3e3e339.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1308
- C:\Users\Admin\AppData\Local\Temp\662cc9247464ebf9fd0bb2d8b3e3e339.exe
  "C:\Users\Admin\AppData\Local\Temp\662cc9247464ebf9fd0bb2d8b3e3e339.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Drops file in Windows directory
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:2400

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/2400-0-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2400-1-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2400-2-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2400-3-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

Filesize
4KB

Download
memory/2400-5-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2400-7-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2400-9-0x0000000000070000-0x000000000007F000-memory.dmp

Filesize
60KB

Download
memory/2400-10-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download
memory/2400-15-0x0000000000400000-0x0000000000416000-memory.dmp

Filesize
88KB

Download