4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd

General

Target

4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe
Size

332KB
MD5

3779fc0ef640f7493286491d1889de07
SHA1

9f15610b05a63bea44dc320bf0f3ca390e219bb6
SHA256

4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd
SHA512

5b2b5783e712f8aeeb1987a90cd91cc2f469c71e6c29f5552e03bdb4950d3b4908159260f5e79df1ff7b751b1d4c777e383be4d1570d99509c62f3a0c879ece9
SSDEEP

6144:xaNJmnQo41QAOMwEIzUjQiZZvEYqWnKZ+pnVaN:x234BEIYjQWvrq1snkN

Score

10^/10

evasion 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:\\Users\\Admin\\AppData\\Roaming\\smss.exe\""	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe

Executes dropped EXE 1 IoCs

pid	Process
1288	smss.exe

Modifies Windows Firewall 1 TTPs 1 IoCs

evasion

Modify Existing Service

T1031

pid	Process
1544	netsh.exe

Loads dropped DLL 2 IoCs

pid	Process
1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe
1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe

Adds Run key to start application 2 TTPs 4 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\smss.exe\""	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe
Key created	\REGISTRY\MACHINE\Software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\MSWUpdate = "\"C:\\Users\\Admin\\AppData\\Roaming\\smss.exe\""	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000\Software\Microsoft\Windows\CurrentVersion\Run	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe

Suspicious use of WriteProcessMemory 8 IoCs

description	pid	Process	procid_target
PID 1248 wrote to memory of 1544	1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe	28
PID 1248 wrote to memory of 1544	1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe	28
PID 1248 wrote to memory of 1544	1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe	28
PID 1248 wrote to memory of 1544	1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe	28
PID 1248 wrote to memory of 1288	1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe	30
PID 1248 wrote to memory of 1288	1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe	30
PID 1248 wrote to memory of 1288	1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe	30
PID 1248 wrote to memory of 1288	1248	4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe	30

C:\Users\Admin\AppData\Local\Temp\4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe
"C:\Users\Admin\AppData\Local\Temp\4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe"
1⤵
- Modifies WinLogon for persistence
- Loads dropped DLL
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1248
- C:\Windows\SysWOW64\netsh.exe
  netsh firewall add allowedprogram "C:\Users\Admin\AppData\Roaming\smss.exe" CityScape Enable
  2⤵
  - Modifies Windows Firewall
  PID:1544
- C:\Users\Admin\AppData\Roaming\smss.exe
  /d C:\Users\Admin\AppData\Local\Temp\4a72eff87da7db11a6f27854dff04b0e6a5433bdf3a0dce0df6b988cd82514cd.exe
  2⤵
  - Executes dropped EXE
  PID:1288

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Modify Existing Service

1

T1031

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

2

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Roaming\smss.exe

Filesize
332KB

MD5
d320f396fb3e775d7e22993557389dba

SHA1
797164b5890d8fa36f5c4c120b94e013944d201c

SHA256
1a8953f1506b26478069de0ff6fd9ac9ebc50e2f4b367a3ac3f472a2a95560c3

SHA512
20d3a3e10a50b6266a1c46ea7507c8414edf8ffc777d61e9fe26053e7412c4451b4f18f75603d6608be75cadae6dd12ca9a4fdb39a0eb276be02275075b65493

Download Submit
\Users\Admin\AppData\Roaming\smss.exe

Filesize
332KB

MD5
d320f396fb3e775d7e22993557389dba

SHA1
797164b5890d8fa36f5c4c120b94e013944d201c

SHA256
1a8953f1506b26478069de0ff6fd9ac9ebc50e2f4b367a3ac3f472a2a95560c3

SHA512
20d3a3e10a50b6266a1c46ea7507c8414edf8ffc777d61e9fe26053e7412c4451b4f18f75603d6608be75cadae6dd12ca9a4fdb39a0eb276be02275075b65493

Download Submit
\Users\Admin\AppData\Roaming\smss.exe

Filesize
332KB

MD5
d320f396fb3e775d7e22993557389dba

SHA1
797164b5890d8fa36f5c4c120b94e013944d201c

SHA256
1a8953f1506b26478069de0ff6fd9ac9ebc50e2f4b367a3ac3f472a2a95560c3

SHA512
20d3a3e10a50b6266a1c46ea7507c8414edf8ffc777d61e9fe26053e7412c4451b4f18f75603d6608be75cadae6dd12ca9a4fdb39a0eb276be02275075b65493

Download Submit
memory/1248-54-0x0000000000460000-0x00000000004B5000-memory.dmp

Filesize
340KB

Download
memory/1248-55-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1248-56-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1248-62-0x0000000000400000-0x0000000000455000-memory.dmp

Filesize
340KB

Download
memory/1544-63-0x0000000075351000-0x0000000075353000-memory.dmp

Filesize
8KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads