6db1603ce68097dfdc5561726befd652bb9e5c7a7cf6a62dea379e174e512d45

Analysis

max time kernel
101s
max time network
101s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
20/08/2024, 07:06

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General

Target

c4890dd22ba0f166c1658c3022d97c90N.exe
Size

110KB
MD5

c4890dd22ba0f166c1658c3022d97c90
SHA1

eee80e851fa8bff597d8c3b788afb62e7362c428
SHA256

6db1603ce68097dfdc5561726befd652bb9e5c7a7cf6a62dea379e174e512d45
SHA512

fb932b9774f246b7575b9256e876e9b8aab281320641c839bdc8b283e8096a3f60df5660847aa6c7dcf4b48a2ea946f573533b5163c0e52f3b0ed5d250e1124c
SSDEEP

3072:ZWrKR8W9Mj6yhPyKfXtAGsKG3ERrjjNB3+IQOren2UDgc:GjYKlAhUBVB3pQOargc

Score

7^/10

discovery persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4768	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

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"	c4890dd22ba0f166c1658c3022d97c90N.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	c4890dd22ba0f166c1658c3022d97c90N.exe
File created	C:\Windows\CTS.exe	CTS.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	c4890dd22ba0f166c1658c3022d97c90N.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4000	c4890dd22ba0f166c1658c3022d97c90N.exe
Token: SeDebugPrivilege	4768	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4000 wrote to memory of 4768	4000	c4890dd22ba0f166c1658c3022d97c90N.exe	86
PID 4000 wrote to memory of 4768	4000	c4890dd22ba0f166c1658c3022d97c90N.exe	86
PID 4000 wrote to memory of 4768	4000	c4890dd22ba0f166c1658c3022d97c90N.exe	86

C:\Users\Admin\AppData\Local\Temp\c4890dd22ba0f166c1658c3022d97c90N.exe
"C:\Users\Admin\AppData\Local\Temp\c4890dd22ba0f166c1658c3022d97c90N.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4000
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - System Location Discovery: System Language Discovery
  - Suspicious use of AdjustPrivilegeToken
  PID:4768

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

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

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Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
411KB

MD5
e31fe3d40f0cfc9f84171c8d97408212

SHA1
91963306aad2494df4b3891bc6ce07d1b96b791c

SHA256
9c2091d94bd1c86c6f2917534007be00fd22d75893122ae4c896102713de60fd

SHA512
0c015178d2159f26d7985280ea8f502408397dfd66968abca842cbc3b75b4e3a13bd3dce0ac8ae0bfda0b8813aa6c2411361808919832f251d9e7d14c1b69260

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C:\Users\Admin\AppData\Local\Temp\2L0a8ZyEEhp9Afs.exe

Filesize
110KB

MD5
c2fc82ea7e476d757a85608739e01b26

SHA1
b8e5c019c6585556af295f1e565439ecdb732ec3

SHA256
249e8a9e8cfe62b3e4c14da3d0236da9e2b14d7683dd4b822befc4435d7e8cfb

SHA512
0c573c7e25f8465234fd04671fa38500efc23f1b8a41ee08a9fbfb16c4074514c8cd857a1207a28e619d278da566dd3d240fe317eb4ce10c106406d1e3076924

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C:\Windows\CTS.exe

Filesize
86KB

MD5
0f736d30fbdaebed364c4cd9f084e500

SHA1
d7e96b736463af4b3edacd5cc5525cb70c593334

SHA256
431b7f30b7f8d520f69066b03b8dccbb35a6cb40a53c5e2320c6b5acf96b2e34

SHA512
570a2f76d653414fedc12ed486f2bf0333dc860f52d70faa895d6b9951ac185317637d7b076e05c932f4c536259e19a952a716e9516d506d2a19de73c50f2566

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads