42964ee005a1350cee3b1c7c75ea47e5c7b9806d7e2b9a8b8a75b7dacc079b83

Analysis

max time kernel
141s
max time network
79s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
01/01/2024, 08:15

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

3c598a5317bb857a53b8044fb22cc4ec.exe
Size

35KB
MD5

3c598a5317bb857a53b8044fb22cc4ec
SHA1

50a6d4449d8a05d0761f506d5ec8959b5577f855
SHA256

42964ee005a1350cee3b1c7c75ea47e5c7b9806d7e2b9a8b8a75b7dacc079b83
SHA512

3e9a215d577f9aad90ebeff5b4597c3ed184a4f538638d4dfe0ab687fb848116a5a06355d8779cdebded078360796a90abd8c88b86ba70c396d762025a293031
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+Ix:s9Z3KcR4mjD9r8226+U

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4540	CTS.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

UPX packed file 5 IoCs

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

upx

resource	yara_rule
behavioral2/memory/2136-0-0x0000000000D60000-0x0000000000D77000-memory.dmp	upx
behavioral2/memory/4540-8-0x0000000000ED0000-0x0000000000EE7000-memory.dmp	upx
behavioral2/files/0x00070000000231e2-9.dat	upx
behavioral2/memory/2136-7-0x0000000000D60000-0x0000000000D77000-memory.dmp	upx
behavioral2/memory/4540-32-0x0000000000ED0000-0x0000000000EE7000-memory.dmp	upx

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\CTS = "C:\\Windows\\CTS.exe"	3c598a5317bb857a53b8044fb22cc4ec.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	3c598a5317bb857a53b8044fb22cc4ec.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2136	3c598a5317bb857a53b8044fb22cc4ec.exe
Token: SeDebugPrivilege	4540	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2136 wrote to memory of 4540	2136	3c598a5317bb857a53b8044fb22cc4ec.exe	21
PID 2136 wrote to memory of 4540	2136	3c598a5317bb857a53b8044fb22cc4ec.exe	21
PID 2136 wrote to memory of 4540	2136	3c598a5317bb857a53b8044fb22cc4ec.exe	21

C:\Users\Admin\AppData\Local\Temp\3c598a5317bb857a53b8044fb22cc4ec.exe
"C:\Users\Admin\AppData\Local\Temp\3c598a5317bb857a53b8044fb22cc4ec.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2136
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:4540

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

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/2136-0-0x0000000000D60000-0x0000000000D77000-memory.dmp

Filesize
92KB

Download
memory/2136-7-0x0000000000D60000-0x0000000000D77000-memory.dmp

Filesize
92KB

Download
memory/4540-8-0x0000000000ED0000-0x0000000000EE7000-memory.dmp

Filesize
92KB

Download
memory/4540-32-0x0000000000ED0000-0x0000000000EE7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads