26dda853b5d6f5d9df23b9b26b5e287268b4e3323272d193ad366a0bc59d2ad4

Analysis

max time kernel
145s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
22/12/2023, 14:06

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General

Target

b7254d758341d446daa16cc9c9cd6d4c.exe
Size

130KB
MD5

b7254d758341d446daa16cc9c9cd6d4c
SHA1

087a5bae305600aa9fe1a294581801fac09ac4ef
SHA256

26dda853b5d6f5d9df23b9b26b5e287268b4e3323272d193ad366a0bc59d2ad4
SHA512

2bdeab1fb6e86fc1897e0a60b7adb15b99962da185fe97cb7634d354698f02113c4d3a268c509f5ee788b61fa54ba8c8346e17bb6681c0715d3469909501217b
SSDEEP

3072:sr3KcWmjRrzSE5/XwqlJ5oe/ziC20MJmYHgBCsN0bvsGz8I:/sXl/bIKYYHo5QI

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 2 IoCs

pid	Process
4776	8l3T5CJJnnH0anb.exe
4912	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
behavioral2/memory/2472-0-0x0000000000CB0000-0x0000000000CC7000-memory.dmp	upx
behavioral2/files/0x000700000002320d-7.dat	upx
behavioral2/memory/4912-9-0x0000000000300000-0x0000000000317000-memory.dmp	upx
behavioral2/memory/2472-8-0x0000000000CB0000-0x0000000000CC7000-memory.dmp	upx
behavioral2/files/0x000300000002275e-13.dat	upx
behavioral2/memory/4912-32-0x0000000000300000-0x0000000000317000-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"	b7254d758341d446daa16cc9c9cd6d4c.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	b7254d758341d446daa16cc9c9cd6d4c.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2472	b7254d758341d446daa16cc9c9cd6d4c.exe
Token: SeDebugPrivilege	4912	CTS.exe

Suspicious use of WriteProcessMemory 5 IoCs

description	pid	Process	procid_target
PID 2472 wrote to memory of 4776	2472	b7254d758341d446daa16cc9c9cd6d4c.exe	19
PID 2472 wrote to memory of 4776	2472	b7254d758341d446daa16cc9c9cd6d4c.exe	19
PID 2472 wrote to memory of 4912	2472	b7254d758341d446daa16cc9c9cd6d4c.exe	17
PID 2472 wrote to memory of 4912	2472	b7254d758341d446daa16cc9c9cd6d4c.exe	17
PID 2472 wrote to memory of 4912	2472	b7254d758341d446daa16cc9c9cd6d4c.exe	17

C:\Users\Admin\AppData\Local\Temp\b7254d758341d446daa16cc9c9cd6d4c.exe
"C:\Users\Admin\AppData\Local\Temp\b7254d758341d446daa16cc9c9cd6d4c.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2472
- 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:4912
- C:\Users\Admin\AppData\Local\Temp\8l3T5CJJnnH0anb.exe
  C:\Users\Admin\AppData\Local\Temp\8l3T5CJJnnH0anb.exe
  2⤵
  - Executes dropped EXE
  PID:4776

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

C:\Users\Admin\AppData\Local\Temp\8l3T5CJJnnH0anb.exe

Filesize
94KB

MD5
9a821d8d62f4c60232b856e98cba7e4f

SHA1
4ec5dcbd43ad3b0178b26a57b8a2f41e33a48df5

SHA256
a5b3bf53bcd3c0296498383837e8f9eb7d610c535521315a96aa740cf769f525

SHA512
1b5273a52973dac77ad0ef7aa1dda929a782d762ab8489eb90dff1062dd4cc01e4f7f4157266a2abcf8941e91cf4aa5603de1dd8ee871524748e0989ebaa37d3

Download Submit
C:\Windows\CTS.exe

Filesize
36KB

MD5
d23b958b292229b9c4449af4799e5199

SHA1
4edca4f5650a46b49f38cdc3da76df63be05d00a

SHA256
590c7a8236b0a29ae55e001361e3365bcaaeefe732d6061da12175343026e50a

SHA512
1e758b59e2b89c8313027d609949eeadc4a40ebe9c27de72bf16be4f0a5e8dafceb787d92e1324f217059bd83363368718d4bbf88841fbb50cd11d3113177c56

Download Submit
memory/2472-0-0x0000000000CB0000-0x0000000000CC7000-memory.dmp

Filesize
92KB

Download
memory/2472-8-0x0000000000CB0000-0x0000000000CC7000-memory.dmp

Filesize
92KB

Download
memory/4912-9-0x0000000000300000-0x0000000000317000-memory.dmp

Filesize
92KB

Download
memory/4912-32-0x0000000000300000-0x0000000000317000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads