ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2

General

Target

ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
Size

117KB
MD5

5f1205d6e07f9c20037537d1ea6018e4
SHA1

661734b20c2330e9edcc536362a669c4789a5215
SHA256

ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2
SHA512

044ff5ddca603961a49bd8d58e11ed37d0720b6d2a3f4987cde12edeb8448c22e5c5365ab212499f7e6d60a4438d059aa134ca5a3d61792446bc34a1e45e6069
SSDEEP

1536:Mpq5w6ZPfg2H46pojyF8YQlFtdSvAybQvvGmvn9aQGamYumznIy5gQ1VhpHvqCRn:MAlRgL6ujAJYOoiatuUnIyB1VjoAWc

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-175716613\\x1786731.exe"	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run\2x6763 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-175716613\\x1786731.exe"	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000\Software\Microsoft\Windows\CurrentVersion\Run	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

description	ioc	process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781862338-175716613\Desktop.ini	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-175716613\\x1786731.exe"	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

description	pid	process	target process
PID 896 set thread context of 1028	896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.execa3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

pid	process
896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
1028	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.execa3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe

description	pid	process	target process
PID 896 wrote to memory of 1028	896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
PID 896 wrote to memory of 1028	896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
PID 896 wrote to memory of 1028	896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
PID 896 wrote to memory of 1028	896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
PID 896 wrote to memory of 1028	896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
PID 896 wrote to memory of 1028	896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
PID 896 wrote to memory of 1028	896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
PID 896 wrote to memory of 1028	896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
PID 896 wrote to memory of 1028	896	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
PID 1028 wrote to memory of 1248	1028	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	Explorer.EXE
PID 1028 wrote to memory of 1248	1028	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	Explorer.EXE
PID 1028 wrote to memory of 1248	1028	ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe	Explorer.EXE

C:\Users\Admin\AppData\Local\Temp\ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
"C:\Users\Admin\AppData\Local\Temp\ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe"
1⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:896
- C:\Users\Admin\AppData\Local\Temp\ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe
  "C:\Users\Admin\AppData\Local\Temp\ca3be36fe090995e3b0ab6e5bb7f0b873465843107f85f283f55d2b819cfcca2.exe"
  2⤵
  - Modifies WinLogon for persistence
  - Adds Run key to start application
  - Drops desktop.ini file(s)
  - Modifies WinLogon
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:1028

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1248

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Registry Run Keys / Startup Folder

Winlogon Helper DLL

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/896-61-0x00000000001B0000-0x00000000001B3000-memory.dmp

Filesize
12KB

Download
memory/1028-55-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1028-54-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1028-57-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1028-58-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1028-59-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1028-60-0x0000000000401920-mapping.dmp

Download
memory/1028-63-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v6

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Downloads