a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d

General

Target

a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
Size

140KB
MD5

503f870e2b4f7667721ec283f7f7f109
SHA1

4d4d21d7dcd41380ace6c5a81a9e4f8f31c35e3e
SHA256

a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d
SHA512

68bfc2bd1f0658102b9b5f437032b2e7071a1aac105eefc0e7be9f3f7dbcc0489e20b3d19f0b441f92a318924392069eb29f42ba5502c00c7a7111d601af9366
SSDEEP

1536:Mm5NbGvNizYf/aFWIPNDGe8gyeKNLOrqbdJOGxUqkSZZZ3gURD8ib87Fi:v7YfIDZ8gyeKNqqbdxiUNRD5byFi

Score

10^/10

persistence

Malware Config

Signatures

Modifies WinLogon for persistence 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "explorer.exe,C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-118161761\\1vffv1.exe"	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

Processes:

a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000\Software\Microsoft\Windows\CurrentVersion\Run\2b2ff70 = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-118161761\\1vffv1.exe"	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

Drops desktop.ini file(s) 1 IoCs

Processes:

a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

description	ioc	process
File created	C:\RECYCLER\S-1-5-21-0243556031-888888379-781862338-118161761\Desktop.ini	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

Modifies WinLogon 2 TTPs 1 IoCs

persistence

Winlogon Helper DLL

T1004

Modify Registry

T1112

Processes:

a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

description	ioc	process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Taskman = "C:\\RECYCLER\\S-1-5-21-0243556031-888888379-781862338-118161761\\1vffv1.exe"	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

description	pid	process	target process
PID 1680 set thread context of 960	1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

Processes:

a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exea5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

pid	process
1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
960	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

Suspicious use of WriteProcessMemory 12 IoCs

Processes:

a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exea5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe

description	pid	process	target process
PID 1680 wrote to memory of 960	1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
PID 1680 wrote to memory of 960	1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
PID 1680 wrote to memory of 960	1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
PID 1680 wrote to memory of 960	1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
PID 1680 wrote to memory of 960	1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
PID 1680 wrote to memory of 960	1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
PID 1680 wrote to memory of 960	1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
PID 1680 wrote to memory of 960	1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
PID 1680 wrote to memory of 960	1680	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
PID 960 wrote to memory of 1212	960	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	Explorer.EXE
PID 960 wrote to memory of 1212	960	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	Explorer.EXE
PID 960 wrote to memory of 1212	960	a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe	Explorer.EXE

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
PID:1212

C:\Users\Admin\AppData\Local\Temp\a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
"C:\Users\Admin\AppData\Local\Temp\a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe"
2⤵
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1680

C:\Users\Admin\AppData\Local\Temp\a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe
"C:\Users\Admin\AppData\Local\Temp\a5048d5a833a898146cf3e6833b36f13545418d10d0cd5d89e0bc960e224387d.exe"
3⤵
- 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:960

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Winlogon Helper DLL

2

T1004

Registry Run Keys / Startup Folder

1

T1060

Privilege Escalation

Defense Evasion

Modify Registry

3

T1112

Credential Access

Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

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Downloads

memory/960-54-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/960-55-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/960-57-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/960-58-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/960-60-0x0000000000401920-mapping.dmp

Download
memory/960-59-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/960-63-0x0000000000400000-0x0000000000405000-memory.dmp

Filesize
20KB

Download
memory/1680-61-0x00000000002B0000-0x00000000002B3000-memory.dmp

Filesize
12KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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Downloads