7246a8818630033c69d2cb10eb999c757c2b320e13d2b44e0182c88d37a44bf6

Analysis

max time kernel
141s
max time network
139s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
31/12/2023, 04:16

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General

Target
27ccae91a7b75ee9cb0dd3fbbf0a49bb.exe
Size 130KB
Sample231231-ev5n5sbfa9
SHA256 7246a8818630033c69d2cb10eb999c757c2b320e13d2b44e0182c88d37a44bf6
MD5 27ccae91a7b75ee9cb0dd3fbbf0a49bb
SHA1 3030ae42ebd2593516bafa1e6ff8f5e80171010b
SHA512 a6cbb0d8606b0a5c4a9dfe63d6bd365b625761bcc42e50868518f51eb21795d5211909e7b34886e1ef4a7c8ec59bc4d34d34aa0efffcfd0f3177d70acab143cc
SSDEEP 3072:sr3KcWmjRrzS4Wdsl+N+vcyd72KrTZTm+n2mFYLlkiEQVz:/IWxocO7RrNTm+2mglkiEQVz
MD5 SHA1 SHA512 SSDEEP

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
392	8SEj2sBv6LQtUGu.exe
2904	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 3 IoCs

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

upx

resource	yara_rule
behavioral2/memory/940-0-0x0000000000370000-0x0000000000387000-memory.dmp	upx
behavioral2/memory/2904-10-0x00000000008B0000-0x00000000008C7000-memory.dmp	upx
behavioral2/memory/940-9-0x0000000000370000-0x0000000000387000-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"	27ccae91a7b75ee9cb0dd3fbbf0a49bb.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	27ccae91a7b75ee9cb0dd3fbbf0a49bb.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	940	27ccae91a7b75ee9cb0dd3fbbf0a49bb.exe
Token: SeDebugPrivilege	2904	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 940 wrote to memory of 392	940	27ccae91a7b75ee9cb0dd3fbbf0a49bb.exe	20
PID 940 wrote to memory of 392	940	27ccae91a7b75ee9cb0dd3fbbf0a49bb.exe	20
PID 940 wrote to memory of 2904	940	27ccae91a7b75ee9cb0dd3fbbf0a49bb.exe	19
PID 940 wrote to memory of 2904	940	27ccae91a7b75ee9cb0dd3fbbf0a49bb.exe	19
PID 940 wrote to memory of 2904	940	27ccae91a7b75ee9cb0dd3fbbf0a49bb.exe	19

C:\Users\Admin\AppData\Local\Temp\27ccae91a7b75ee9cb0dd3fbbf0a49bb.exe
"C:\Users\Admin\AppData\Local\Temp\27ccae91a7b75ee9cb0dd3fbbf0a49bb.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:940
- 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:2904
- C:\Users\Admin\AppData\Local\Temp\8SEj2sBv6LQtUGu.exe
  C:\Users\Admin\AppData\Local\Temp\8SEj2sBv6LQtUGu.exe
  2⤵
  - Executes dropped EXE
  PID:392

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

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Downloads

memory/940-0-0x0000000000370000-0x0000000000387000-memory.dmp

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memory/940-9-0x0000000000370000-0x0000000000387000-memory.dmp

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memory/2904-10-0x00000000008B0000-0x00000000008C7000-memory.dmp

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Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads