dc12f4b255c4811e149d407f2c7ca6d9fc44cfabe922ac1ca2aa1fc6d8ad6307

Analysis

max time kernel
150s
max time network
153s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
25-12-2023 04:10

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

0490ca611a0e2b50bef8d8373327d790.dll
Size

236KB
MD5

0490ca611a0e2b50bef8d8373327d790
SHA1

1d4769fcbac93ee61a6c03ef49e41721e936cc9b
SHA256

dc12f4b255c4811e149d407f2c7ca6d9fc44cfabe922ac1ca2aa1fc6d8ad6307
SHA512

55f2e272a4a2fd217ff1e52a6fe624fbba78f42fb913fe151523d59ed6197ea0f2ff6d4640db9d812a17794a70913cf5752bcc928693db08231bc88f52f1de1e
SSDEEP

1536:Iguo2K86vta10RJQYPIHL+D5IWhxRh/Ci4ucg3/+k5ltr+DRPG8Gz7wk+cQvMI:Go256vS0RJAL+lHPKi40+66iwkD0T

Score

10^/10

persistence

Malware Config

Signatures

Adds autorun key to be loaded by Explorer.exe on startup 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\ShellServiceObjectDelayLoad\yritkge = "{89ed2c26-0165-56ba-1276-0165a4ae8274}"	rundll32.exe

Loads dropped DLL 1 IoCs

pid	Process
4168	rundll32.exe

Drops file in System32 directory 4 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\levgxtr.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\levgxtr.dll	rundll32.exe
File created	C:\Windows\SysWOW64\tmdofbz.dll	rundll32.exe
File opened for modification	C:\Windows\SysWOW64\tmdofbz.dll	rundll32.exe

Modifies registry class 5 IoCs

description	ioc	Process
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{89ed2c26-0165-56ba-1276-0165a4ae8274}\InprocServer32	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{89ed2c26-0165-56ba-1276-0165a4ae8274}\InprocServer32\ = "C:\\Windows\\SysWow64\\tmdofbz.dll"	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{89ed2c26-0165-56ba-1276-0165a4ae8274}\InprocServer32\ThreadingModel = "Apartment"	rundll32.exe
Key created	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{89ed2c26-0165-56ba-1276-0165a4ae8274}	rundll32.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Classes\WOW6432Node\CLSID\{89ed2c26-0165-56ba-1276-0165a4ae8274}\	rundll32.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4168	rundll32.exe
4168	rundll32.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4168	rundll32.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
4168	rundll32.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 880 wrote to memory of 4168	880	rundll32.exe	20
PID 880 wrote to memory of 4168	880	rundll32.exe	20
PID 880 wrote to memory of 4168	880	rundll32.exe	20

C:\Windows\system32\rundll32.exe
rundll32.exe C:\Users\Admin\AppData\Local\Temp\0490ca611a0e2b50bef8d8373327d790.dll,#1
1⤵
- Suspicious use of WriteProcessMemory
PID:880
- C:\Windows\SysWOW64\rundll32.exe
  rundll32.exe C:\Users\Admin\AppData\Local\Temp\0490ca611a0e2b50bef8d8373327d790.dll,#1
  2⤵
  - Adds autorun key to be loaded by Explorer.exe on startup
  - Loads dropped DLL
  - Drops file in System32 directory
  - Modifies registry class
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of SetWindowsHookEx
  PID:4168

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

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\SysWOW64\levgxtr.dll

Filesize
478KB

MD5
e99416267b61f52fa5ab994019efd359

SHA1
86d31eae707db7fe51d2556394fcf0e8e9f6b0fd

SHA256
768c286674371564b5e6095edb56e0a4231f341be895da69cfccca5160029774

SHA512
0a1c7579a9c787c2c1bef35f0660e72e74b42824e14ebea63b87ed25ddaf107e3746567bb431cab41a2f6719fad2c22d96e0715a1fe085d75805d7d66f7f05ae

Download Submit
memory/4168-0-0x0000000000890000-0x00000000008D4000-memory.dmp

Filesize
272KB

Download
memory/4168-1-0x0000000000890000-0x00000000008D4000-memory.dmp

Filesize
272KB

Download
memory/4168-10-0x00000000774D0000-0x000000007754A000-memory.dmp

Filesize
488KB

Download
memory/4168-11-0x0000000000890000-0x00000000008D4000-memory.dmp

Filesize
272KB

Download
memory/4168-12-0x00000000774D0000-0x000000007754A000-memory.dmp

Filesize
488KB

Download