b14acdfb8b11e4654abae86babbb6b9b00d4fd78ce13651c612b2ebb7e9ac860

Analysis

max time kernel
161s
max time network
176s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 12:14

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General

Target

18300cea329655d632ae8d82a9b46090.exe
Size

29KB
MD5

18300cea329655d632ae8d82a9b46090
SHA1

e838a952c4825e90ff9704edfa457f8169ef4015
SHA256

b14acdfb8b11e4654abae86babbb6b9b00d4fd78ce13651c612b2ebb7e9ac860
SHA512

24495a945a4fdd5560d2e256c90d830cb0c653c34eb4ab7473f564ea25cec7d016fd7db0d6c5299c259136092e8b9a6f8a46920eb476e6f4ed190a9d2f00a080
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEF6:SKcR4mjD9r823F6

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
5032	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 7 IoCs

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

upx

resource	yara_rule
behavioral2/memory/1844-0-0x00000000001C0000-0x00000000001D7000-memory.dmp	upx
behavioral2/files/0x000200000001e7dd-6.dat	upx
behavioral2/memory/5032-7-0x00000000009F0000-0x0000000000A07000-memory.dmp	upx
behavioral2/memory/1844-9-0x00000000001C0000-0x00000000001D7000-memory.dmp	upx
behavioral2/files/0x0007000000022556-12.dat	upx
behavioral2/memory/5032-26-0x00000000009F0000-0x0000000000A07000-memory.dmp	upx
behavioral2/files/0x0009000000022480-31.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"	18300cea329655d632ae8d82a9b46090.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	18300cea329655d632ae8d82a9b46090.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1844	18300cea329655d632ae8d82a9b46090.exe
Token: SeDebugPrivilege	5032	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 1844 wrote to memory of 5032	1844	18300cea329655d632ae8d82a9b46090.exe	90
PID 1844 wrote to memory of 5032	1844	18300cea329655d632ae8d82a9b46090.exe	90
PID 1844 wrote to memory of 5032	1844	18300cea329655d632ae8d82a9b46090.exe	90

C:\Users\Admin\AppData\Local\Temp\18300cea329655d632ae8d82a9b46090.exe
"C:\Users\Admin\AppData\Local\Temp\18300cea329655d632ae8d82a9b46090.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1844
- 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:5032

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\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
352KB

MD5
eafac22d218a998043c815ad66c9fa7a

SHA1
aea8a5a838aaace4337210f42973e718457dd967

SHA256
3a0f25b044f5fdbf75ece8dffd39d28a638ea527c165ebfe2fc69e1c667bfa0e

SHA512
d0af4dc7859737180be876a54ae1f9f05e7dfc4473ef8e17cd75c2994514522b06fc4c43caa299b8ee5d938509c69d9e24d979a5cf85d0d4c4a753ed76c51b33

Download Submit
C:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/1844-0-0x00000000001C0000-0x00000000001D7000-memory.dmp

Filesize
92KB

Download
memory/1844-9-0x00000000001C0000-0x00000000001D7000-memory.dmp

Filesize
92KB

Download
memory/5032-7-0x00000000009F0000-0x0000000000A07000-memory.dmp

Filesize
92KB

Download
memory/5032-26-0x00000000009F0000-0x0000000000A07000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads