909c1ebaa13673fbf97a836556b9c17502419dc0bfe7b95f95767e054b6af3b1

Analysis

max time kernel
150s
max time network
120s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
25/12/2023, 03:34

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General

Target

0362caad7e5b1bb567e51fbcf0e9fb58.exe
Size

47KB
MD5

0362caad7e5b1bb567e51fbcf0e9fb58
SHA1

8bcc0719e3e9a5185dc35939622d6abf85d3af90
SHA256

909c1ebaa13673fbf97a836556b9c17502419dc0bfe7b95f95767e054b6af3b1
SHA512

5bb22aa7d1b490dfa9f805f788f22f90ae7ee85b2b4932e44cb2224d788c27e7097f9aa7110747d01abb4ac9c7f9031677b0ec9e437b175724794835e7ae2a9f
SSDEEP

768:LWCm7h8GHNcMlsCEofcqgTT09Dh/c8io4jfAB17hoqZEwnCYNdrJw+Z3rTcggGy:ir8GHNrnEmbYjg17boYXrNF3LE

Score

10^/10

bootkit persistence spyware stealer

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\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit = "userinit.exeC:\\Users\\Admin\\AppData\\Roaming\\appconf32.exe,"	TSTheme.exe

Deletes itself 1 IoCs

pid	Process
2232	TSTheme.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

Bootkits write to the MBR to gain persistence at a level below the operating system.

bootkit persistence

Bootkit

T1542.003

description	ioc	Process
File opened for modification	\??\PhysicalDrive0	TSTheme.exe

Modifies Internet Explorer Protected Mode 1 TTPs 1 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3\2500 = "3"	TSTheme.exe

Modifies Internet Explorer Protected Mode Banner 1 TTPs 1 IoCs

Modify Registry

T1112

description	ioc	Process
Set value (int)	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Internet Explorer\Main\NoProtectedModeBanner = "1"	TSTheme.exe

Modifies Internet Explorer settings 1 TTPs 1 IoCs

adware spyware

Modify Registry

T1112

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-452311807-3713411997-1028535425-1000\Software\Microsoft\Internet Explorer\Main	TSTheme.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe
2232	TSTheme.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 1824 wrote to memory of 2232	1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe	28
PID 1824 wrote to memory of 2232	1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe	28
PID 1824 wrote to memory of 2232	1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe	28
PID 1824 wrote to memory of 2232	1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe	28
PID 1824 wrote to memory of 2232	1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe	28
PID 1824 wrote to memory of 2232	1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe	28
PID 1824 wrote to memory of 2232	1824	0362caad7e5b1bb567e51fbcf0e9fb58.exe	28
PID 2232 wrote to memory of 2848	2232	TSTheme.exe	29
PID 2232 wrote to memory of 2848	2232	TSTheme.exe	29
PID 2232 wrote to memory of 2848	2232	TSTheme.exe	29
PID 2232 wrote to memory of 2848	2232	TSTheme.exe	29
PID 2232 wrote to memory of 2848	2232	TSTheme.exe	29
PID 2232 wrote to memory of 2848	2232	TSTheme.exe	29
PID 2232 wrote to memory of 2848	2232	TSTheme.exe	29
PID 2232 wrote to memory of 2848	2232	TSTheme.exe	29
PID 2232 wrote to memory of 2848	2232	TSTheme.exe	29

C:\Users\Admin\AppData\Local\Temp\0362caad7e5b1bb567e51fbcf0e9fb58.exe
"C:\Users\Admin\AppData\Local\Temp\0362caad7e5b1bb567e51fbcf0e9fb58.exe"
1⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:1824
- C:\Windows\SysWOW64\TSTheme.exe
  C:\Windows\system32\TSTheme.exe
  2⤵
  - Modifies WinLogon for persistence
  - Deletes itself
  - Writes to the Master Boot Record (MBR)
  - Modifies Internet Explorer Protected Mode
  - Modifies Internet Explorer Protected Mode Banner
  - Modifies Internet Explorer settings
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of WriteProcessMemory
  PID:2232
- - C:\Windows\SysWOW64\svchost.exe
    svchost.exe
    3⤵
    PID:2848

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Pre-OS Boot

T1542

Bootkit

T1542.003

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Winlogon Helper DLL

T1547.004

Defense Evasion

Modify Registry

T1112

Pre-OS Boot

T1542

Bootkit

T1542.003

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

memory/1824-7-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download
memory/1824-1-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download
memory/1824-2-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download
memory/1824-0-0x0000000000220000-0x000000000022B000-memory.dmp

Filesize
44KB

Download
memory/2232-13-0x0000000000150000-0x000000000015B000-memory.dmp

Filesize
44KB

Download
memory/2232-6-0x0000000000150000-0x000000000015B000-memory.dmp

Filesize
44KB

Download
memory/2232-10-0x0000000000150000-0x000000000015B000-memory.dmp

Filesize
44KB

Download
memory/2232-12-0x0000000076F0F000-0x0000000076F10000-memory.dmp

Filesize
4KB

Download
memory/2232-5-0x0000000000150000-0x000000000015B000-memory.dmp

Filesize
44KB

Download
memory/2232-17-0x0000000000150000-0x000000000015B000-memory.dmp

Filesize
44KB

Download
memory/2232-30-0x0000000000150000-0x000000000015B000-memory.dmp

Filesize
44KB

Download
memory/2848-25-0x0000000000020000-0x000000000002B000-memory.dmp

Filesize
44KB

Download
memory/2848-26-0x0000000074A00000-0x0000000074B10000-memory.dmp

Filesize
1.1MB

Download
memory/2848-27-0x0000000000020000-0x000000000002B000-memory.dmp

Filesize
44KB

Download
memory/2848-31-0x00000000000B0000-0x00000000000BB000-memory.dmp

Filesize
44KB

Download
memory/2848-32-0x0000000076F0F000-0x0000000076F10000-memory.dmp

Filesize
4KB

Download
memory/2848-37-0x0000000074A00000-0x0000000074B10000-memory.dmp

Filesize
1.1MB

Download