9db75c3e599c1f73c42a5b0eeb3bdcf27be8e55da0cdf2d1fddcacc79bdf2756

Analysis

max time kernel
147s
max time network
153s
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, 13:50

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General

Target

38b30e46b383413eea7cafd9a87b3e9a.exe
Size

29KB
MD5

38b30e46b383413eea7cafd9a87b3e9a
SHA1

3b1e44bbaf087db7dd35162b2d58a0f8d91b377b
SHA256

9db75c3e599c1f73c42a5b0eeb3bdcf27be8e55da0cdf2d1fddcacc79bdf2756
SHA512

9f5d0d2b9afe3a097f2c6379833cb12e758dea19bc5994fe0f3162e61792fc3a64da1bf7328cd299a64bdd237d744fb7962657f7be89c3ad5e9939dce162ce96
SSDEEP

768:XocAX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIocVSEFF:SKcR4mjD9r823FF

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
4412	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/5052-0-0x00000000003A0000-0x00000000003B7000-memory.dmp	upx
behavioral2/memory/4412-9-0x0000000000490000-0x00000000004A7000-memory.dmp	upx
behavioral2/memory/5052-7-0x00000000003A0000-0x00000000003B7000-memory.dmp	upx
behavioral2/files/0x000a000000023146-6.dat	upx
behavioral2/memory/4412-33-0x0000000000490000-0x00000000004A7000-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"	38b30e46b383413eea7cafd9a87b3e9a.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	38b30e46b383413eea7cafd9a87b3e9a.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	5052	38b30e46b383413eea7cafd9a87b3e9a.exe
Token: SeDebugPrivilege	4412	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 5052 wrote to memory of 4412	5052	38b30e46b383413eea7cafd9a87b3e9a.exe	19
PID 5052 wrote to memory of 4412	5052	38b30e46b383413eea7cafd9a87b3e9a.exe	19
PID 5052 wrote to memory of 4412	5052	38b30e46b383413eea7cafd9a87b3e9a.exe	19

C:\Users\Admin\AppData\Local\Temp\38b30e46b383413eea7cafd9a87b3e9a.exe
"C:\Users\Admin\AppData\Local\Temp\38b30e46b383413eea7cafd9a87b3e9a.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5052
- 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:4412

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:\Windows\CTS.exe

Filesize
29KB

MD5
70aa23c9229741a9b52e5ce388a883ac

SHA1
b42683e21e13de3f71db26635954d992ebe7119e

SHA256
9d25cc704b1c00c9d17903e25ca35c319663e997cb9da0b116790b639e9688f2

SHA512
be604a2ad5ab8a3e5edb8901016a76042ba873c8d05b4ef8eec31241377ec6b2a883b51c6912dc7640581ffa624547db334683975883ae74e62808b5ae9ab0b5

Download Submit
memory/4412-9-0x0000000000490000-0x00000000004A7000-memory.dmp

Filesize
92KB

Download
memory/4412-33-0x0000000000490000-0x00000000004A7000-memory.dmp

Filesize
92KB

Download
memory/5052-0-0x00000000003A0000-0x00000000003B7000-memory.dmp

Filesize
92KB

Download
memory/5052-7-0x00000000003A0000-0x00000000003B7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads