338a272863708b714851e2dcd978786176006773c6216c3a667a081098f56d98

Analysis

max time kernel
141s
max time network
151s
platform
windows10-2004_x64
resource
win10v2004-20231222-en
resource tags

arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
submitted
26-12-2023 04:51

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General

Target

55abb68eda351209c510f79dc35670f8.exe
Size

29KB
MD5

55abb68eda351209c510f79dc35670f8
SHA1

d40be2abae6a77f6f15a99f3cd075bb9150025ef
SHA256

338a272863708b714851e2dcd978786176006773c6216c3a667a081098f56d98
SHA512

7b4280fe702eba289a7582dd365fcf79868806b61f05764b0517810207424d0713ace89e1accf0da4fa3f15e54da2f6e02170465f6f3633db241d65f54d92c72
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFd:SKcR4mjD9r823Fd

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
316	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/4504-0-0x0000000000EC0000-0x0000000000ED7000-memory.dmp	upx
behavioral2/memory/316-9-0x0000000000950000-0x0000000000967000-memory.dmp	upx
behavioral2/memory/4504-7-0x0000000000EC0000-0x0000000000ED7000-memory.dmp	upx
behavioral2/files/0x00090000000231eb-6.dat	upx
behavioral2/memory/316-32-0x0000000000950000-0x0000000000967000-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"	55abb68eda351209c510f79dc35670f8.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	CTS.exe
File created	C:\Windows\CTS.exe	55abb68eda351209c510f79dc35670f8.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4504	55abb68eda351209c510f79dc35670f8.exe
Token: SeDebugPrivilege	316	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4504 wrote to memory of 316	4504	55abb68eda351209c510f79dc35670f8.exe	20
PID 4504 wrote to memory of 316	4504	55abb68eda351209c510f79dc35670f8.exe	20
PID 4504 wrote to memory of 316	4504	55abb68eda351209c510f79dc35670f8.exe	20

C:\Users\Admin\AppData\Local\Temp\55abb68eda351209c510f79dc35670f8.exe
"C:\Users\Admin\AppData\Local\Temp\55abb68eda351209c510f79dc35670f8.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4504
- 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:316

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/316-9-0x0000000000950000-0x0000000000967000-memory.dmp

Filesize
92KB

Download
memory/316-32-0x0000000000950000-0x0000000000967000-memory.dmp

Filesize
92KB

Download
memory/4504-0-0x0000000000EC0000-0x0000000000ED7000-memory.dmp

Filesize
92KB

Download
memory/4504-7-0x0000000000EC0000-0x0000000000ED7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads