52e90cd3377d1c20f529cce5a94a03c83a8d8196df6dd1ca062a76a16196b21f

Analysis

max time kernel
143s
max time network
146s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
24-12-2023 14:14

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General

Target

001531dccf5d0762b2de9cfc79b7672c.exe
Size

54KB
MD5

001531dccf5d0762b2de9cfc79b7672c
SHA1

7e2c760695dcc59a0a57d55a25089154bd55a811
SHA256

52e90cd3377d1c20f529cce5a94a03c83a8d8196df6dd1ca062a76a16196b21f
SHA512

57a7be11309a7d3e682b38f93f6a9779cd1db5877a6e46573877a00a9f48a9f7505c9b9ec529bd9a28b644261fb677bc8bf64000702a2ec04a6a98c8d550792b
SSDEEP

1536:ZXlqeEo6JeaFRSfXBYO7ifRkB+HFECKGRv:ZXlqto6gy2XBYO5BkFESR

Score

10^/10

persistence upx

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\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell = "C:\\Users\\Admin\\AppData\\Local\\Temp\\001531dccf5d0762b2de9cfc79b7672c.exe"	001531dccf5d0762b2de9cfc79b7672c.exe

UPX packed file 2 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/2984-3-0x0000000000400000-0x000000000041A000-memory.dmp	upx
behavioral2/memory/2984-4-0x0000000000400000-0x000000000041A000-memory.dmp	upx

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3791175113-1062217823-1177695025-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\S1913711 = "C:\\Users\\Admin\\AppData\\Local\\Temp\\001531dccf5d0762b2de9cfc79b7672c.exe"	001531dccf5d0762b2de9cfc79b7672c.exe

Kills process with taskkill 1 IoCs

evasion

pid	Process
4040	taskkill.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4040	taskkill.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2984 wrote to memory of 4040	2984	001531dccf5d0762b2de9cfc79b7672c.exe	93
PID 2984 wrote to memory of 4040	2984	001531dccf5d0762b2de9cfc79b7672c.exe	93
PID 2984 wrote to memory of 4040	2984	001531dccf5d0762b2de9cfc79b7672c.exe	93

C:\Users\Admin\AppData\Local\Temp\001531dccf5d0762b2de9cfc79b7672c.exe
"C:\Users\Admin\AppData\Local\Temp\001531dccf5d0762b2de9cfc79b7672c.exe"
1⤵
- Modifies WinLogon for persistence
- Adds Run key to start application
- Suspicious use of WriteProcessMemory
PID:2984
- C:\Windows\SysWOW64\taskkill.exe
  taskkill /F /IM explorer.exe
  2⤵
  - Kills process with taskkill
  - Suspicious use of AdjustPrivilegeToken
  PID:4040

C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe
"C:\Windows\SystemApps\Microsoft.Windows.Search_cw5n1h2txyewy\SearchApp.exe" -ServerName:CortanaUI.AppX8z9r6jm96hw4bsbneegw0kyxx296wr9t.mca
1⤵
PID:4080

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

Winlogon Helper DLL

T1547.004

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/2984-0-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2984-1-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2984-2-0x00000000009D0000-0x00000000009EA000-memory.dmp

Filesize
104KB

Download
memory/2984-3-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2984-4-0x0000000000400000-0x000000000041A000-memory.dmp

Filesize
104KB

Download
memory/2984-6-0x00000000009D0000-0x00000000009EA000-memory.dmp

Filesize
104KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads