986ef3055fe3ec7a7495d2f0368c798ef4461c8c5af045760b819ee4b32e7c0b

Analysis

max time kernel
171s
max time network
181s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
31-12-2023 05:49

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General

Target

2aa80d3913a2d4541b9c948fb019b93d.exe
Size

32KB
MD5

2aa80d3913a2d4541b9c948fb019b93d
SHA1

e2b047974e184a24129116983730f286cca85163
SHA256

986ef3055fe3ec7a7495d2f0368c798ef4461c8c5af045760b819ee4b32e7c0b
SHA512

d08e68fcf2384f05bad0e9e367b735f392285f22b7f339c892ce08e924a828ea1643440be8b3c27b08f85f08de6030934a96f36b6f51daa4b495771d16aad434
SSDEEP

384:o/4acyoILe2QbrWyVtVSLo9L0nIRlQqNbH9eQNG9O1Vap9:otcyPYrWAt19XlH0QVa/

Score

10^/10

evasion persistence

Malware Config

Signatures

Modifies firewall policy service 2 TTPs 4 IoCs

evasion

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List	winlogon.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile	winlogon.exe
Key created	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications	winlogon.exe
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List\Microsoft Corp = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winlogon.exe"	winlogon.exe

Executes dropped EXE 1 IoCs

pid	Process
4612	winlogon.exe

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\Microsoft Corp = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winlogon.exe"	winlogon.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-983843758-932321429-1636175382-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Microsoft Corp = "C:\\Users\\Admin\\AppData\\Local\\Temp\\winlogon.exe"	winlogon.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4396 wrote to memory of 4612	4396	2aa80d3913a2d4541b9c948fb019b93d.exe	92
PID 4396 wrote to memory of 4612	4396	2aa80d3913a2d4541b9c948fb019b93d.exe	92
PID 4396 wrote to memory of 4612	4396	2aa80d3913a2d4541b9c948fb019b93d.exe	92

C:\Users\Admin\AppData\Local\Temp\2aa80d3913a2d4541b9c948fb019b93d.exe
"C:\Users\Admin\AppData\Local\Temp\2aa80d3913a2d4541b9c948fb019b93d.exe"
1⤵
- Suspicious use of WriteProcessMemory
PID:4396
- C:\Users\Admin\AppData\Local\Temp\winlogon.exe
  "C:\Users\Admin\AppData\Local\Temp\winlogon.exe"
  2⤵
  - Modifies firewall policy service
  - Executes dropped EXE
  - Adds Run key to start application
  PID:4612

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Create or Modify System Process

T1543

Windows Service

T1543.003

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Temp\winlogon.exe

Filesize
32KB

MD5
2aa80d3913a2d4541b9c948fb019b93d

SHA1
e2b047974e184a24129116983730f286cca85163

SHA256
986ef3055fe3ec7a7495d2f0368c798ef4461c8c5af045760b819ee4b32e7c0b

SHA512
d08e68fcf2384f05bad0e9e367b735f392285f22b7f339c892ce08e924a828ea1643440be8b3c27b08f85f08de6030934a96f36b6f51daa4b495771d16aad434

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads