8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022

Analysis

max time kernel
95s
max time network
97s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
21/09/2024, 17:28

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General

Target

8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022N.exe
Size

330KB
MD5

33216aa4fb16f8942a4e7521e7fb5840
SHA1

054ec5b0ed6e36b4ef53e730f2f6d3fbfff64834
SHA256

8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022
SHA512

ba0ad05cfe02d6144c02594c39c3aacc1ee8dc4375f496808209d72a70cdbeb11a10c4403b2c9d2ba9f00ca328103775d6f67b5837d65dac938f3f1642486cf6
SSDEEP

6144:GjYKlAhUBVB3pQO3uhU6YTFjVxG/DG/FczgfkkyxPDRgVMYKuLCZnf9I:GjYRm7QO3s1YTF5wC/WYkDgWKmZnf9I

Score

7^/10

discovery persistence spyware stealer

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1888	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"	8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022N.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	8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022N.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	8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2420	8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022N.exe
Token: SeDebugPrivilege	1888	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2420 wrote to memory of 1888	2420	8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022N.exe	82
PID 2420 wrote to memory of 1888	2420	8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022N.exe	82
PID 2420 wrote to memory of 1888	2420	8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022N.exe	82

C:\Users\Admin\AppData\Local\Temp\8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022N.exe
"C:\Users\Admin\AppData\Local\Temp\8c79c7aa2e0760e01e856d5800eabfeb2e6f5c283f3baad84f44132d98477022N.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:2420
- 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:1888

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
409KB

MD5
6824ad1c718fcabcff3500dc2a21a0a7

SHA1
d148cbd1122e871ad49a33bdac7ff2fcea3dc7a0

SHA256
d656297b0b8396990c81ec0d174732240ca8a8db381081dae2ffbdd7d7f433cb

SHA512
2e158267fa69c664735e6406085cdf059240a18f658d70fd992dcb333fcd8ad2aaf87007c91953c11f5d851aa7cc85bb3f3698c9c5a15ecfa700fc1417351393

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C:\Users\Admin\AppData\Local\Temp\VuQMlf3RjyGjJX1.exe

Filesize
330KB

MD5
f49dda0ca9695697f8e6894a9846d5f6

SHA1
69933f31ba1bd648b0ce10e104881e507f0f9056

SHA256
b4d6d5b7801b5c4c60301d1ec187b20bf8b55b06b24f0e43039dcb8403011eeb

SHA512
a1a80f554bea03d529a07cf04f8eb2f38aa2ebfa67abfd2127c4e699b720750772653e026c91958a192ffb437e99dce71fd18cc79fef339119001d3d7195dba4

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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