0d05b8d0b82db8b0e41e0079945c9a9b7c8b353b7159f4760b3962375b06decb

Analysis

max time kernel
141s
max time network
124s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
30-12-2023 13:38

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General

Target

1a423760a4f22b69739afa5be31f5fba.exe
Size

36KB
MD5

1a423760a4f22b69739afa5be31f5fba
SHA1

5b19bcdae6589e08fe5cca56fe5a392717b7f92b
SHA256

0d05b8d0b82db8b0e41e0079945c9a9b7c8b353b7159f4760b3962375b06decb
SHA512

630c527388e9740274b36375e307ee8724089210d2171ffc3e3d92f12467a943da37039bd68f58003bc7e05eb6a1a5cc088d6f0cd77efc1a028461547b8ce412
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+Iy:s9Z3KcR4mjD9r8226+R

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2668	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 6 IoCs

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

upx

resource	yara_rule
behavioral1/memory/2132-0-0x0000000000130000-0x0000000000147000-memory.dmp	upx
behavioral1/memory/2132-5-0x00000000000F0000-0x0000000000107000-memory.dmp	upx
behavioral1/files/0x000a000000012247-8.dat	upx
behavioral1/memory/2132-9-0x0000000000130000-0x0000000000147000-memory.dmp	upx
behavioral1/memory/2668-13-0x0000000000A60000-0x0000000000A77000-memory.dmp	upx
behavioral1/files/0x000800000001223a-15.dat	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"	1a423760a4f22b69739afa5be31f5fba.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	1a423760a4f22b69739afa5be31f5fba.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2132	1a423760a4f22b69739afa5be31f5fba.exe
Token: SeDebugPrivilege	2668	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2132 wrote to memory of 2668	2132	1a423760a4f22b69739afa5be31f5fba.exe	28
PID 2132 wrote to memory of 2668	2132	1a423760a4f22b69739afa5be31f5fba.exe	28
PID 2132 wrote to memory of 2668	2132	1a423760a4f22b69739afa5be31f5fba.exe	28
PID 2132 wrote to memory of 2668	2132	1a423760a4f22b69739afa5be31f5fba.exe	28

C:\Users\Admin\AppData\Local\Temp\1a423760a4f22b69739afa5be31f5fba.exe
"C:\Users\Admin\AppData\Local\Temp\1a423760a4f22b69739afa5be31f5fba.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2132
- 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:2668

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

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Downloads

C:\Users\Admin\AppData\Local\Temp\qy1USAfGG75ZVXs.exe

Filesize
36KB

MD5
7a4dbf1415bcb452fd524509b996c023

SHA1
a91ef7019285a89b233a05f53ac0ccf3740b3a55

SHA256
b3236321cdab080ea281eb844e747d24212c46d1cb98a0de632e4fc7113649b2

SHA512
94617471b14838c012075ca3c3ebb85fccf86432168c598ae35f7e34b55ba6e37139cf955d3bf7a5b59d7023622085b5f28f3a8733ff0d7b9313f585b8fa33ca

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/2132-0-0x0000000000130000-0x0000000000147000-memory.dmp

Filesize
92KB

Download
memory/2132-5-0x00000000000F0000-0x0000000000107000-memory.dmp

Filesize
92KB

Download
memory/2132-9-0x0000000000130000-0x0000000000147000-memory.dmp

Filesize
92KB

Download
memory/2132-12-0x00000000000F0000-0x0000000000107000-memory.dmp

Filesize
92KB

Download
memory/2132-20-0x00000000000F0000-0x0000000000107000-memory.dmp

Filesize
92KB

Download
memory/2668-13-0x0000000000A60000-0x0000000000A77000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads