766b232cc257808eac531a84b30c8a58699afd60ff670d88a607c32ab92f65ea

Analysis

max time kernel
152s
max time network
28s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
07/01/2024, 14:40

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

4940cd9046e50c39bc7d2cc55f188137.exe
Size

312KB
MD5

4940cd9046e50c39bc7d2cc55f188137
SHA1

fff85a9a90ac497da30207f7c3f9b62294385d41
SHA256

766b232cc257808eac531a84b30c8a58699afd60ff670d88a607c32ab92f65ea
SHA512

adb5b0ea4b746f42c4f92e774e99e76db74c4811b3bccdf1729d2ca8c51c2f996d0bbd7b5faa5abf40d6bc42c91246fe29f427571cf7b0bb800973ee6714b9b0
SSDEEP

6144:hGyGs3QqiAOGAZmGHVJhMFOCbR5+vA+pS6SvzG2v5K:h3UqiaAFqR5+rKvzGs5K

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
2848	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
behavioral1/memory/2764-0-0x0000000001350000-0x0000000001367000-memory.dmp	upx
behavioral1/files/0x0009000000012266-10.dat	upx
behavioral1/memory/2848-12-0x0000000000FE0000-0x0000000000FF7000-memory.dmp	upx
behavioral1/memory/2764-8-0x0000000001350000-0x0000000001367000-memory.dmp	upx
behavioral1/files/0x000a00000001223b-14.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"	CTS.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	4940cd9046e50c39bc7d2cc55f188137.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	4940cd9046e50c39bc7d2cc55f188137.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	2764	4940cd9046e50c39bc7d2cc55f188137.exe
Token: SeDebugPrivilege	2848	CTS.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 2764 wrote to memory of 2848	2764	4940cd9046e50c39bc7d2cc55f188137.exe	29
PID 2764 wrote to memory of 2848	2764	4940cd9046e50c39bc7d2cc55f188137.exe	29
PID 2764 wrote to memory of 2848	2764	4940cd9046e50c39bc7d2cc55f188137.exe	29
PID 2764 wrote to memory of 2848	2764	4940cd9046e50c39bc7d2cc55f188137.exe	29

C:\Users\Admin\AppData\Local\Temp\4940cd9046e50c39bc7d2cc55f188137.exe
"C:\Users\Admin\AppData\Local\Temp\4940cd9046e50c39bc7d2cc55f188137.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2764
- 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:2848

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

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Temp\W0ANZPCIIEyzFSa.exe

Filesize
312KB

MD5
e02e1b560aea281bed1a5c023e7f7bf9

SHA1
2b74e01c7eb35d5848452ebe54e1b928a3cdcfed

SHA256
82db5bab66cdeb89f0d82913d8f7352de429ec04e2cda1db97e8595be70bba22

SHA512
4997d6db2606fd491b416e1ba29f9d4b34c3d1bcf0f7d669d6076d42a6cd8b18c430ef000b248a7261088f56858dced30a2e54d8e3297bbe64b498551112b372

Download Submit
C:\Windows\CTS.exe

Filesize
59KB

MD5
5efd390d5f95c8191f5ac33c4db4b143

SHA1
42d81b118815361daa3007f1a40f1576e9a9e0bc

SHA256
6028434636f349d801465f77af3a1e387a9c5032942ca6cadb6506d0800f2a74

SHA512
720fbe253483dc034307a57a2860c8629a760f883603198d1213f5290b7f236bf0f5f237728ebed50962be83dc7dc4abe61a1e9a55218778495fc6580eb20b3d

Download Submit
memory/2764-0-0x0000000001350000-0x0000000001367000-memory.dmp

Filesize
92KB

Download
memory/2764-11-0x0000000000160000-0x0000000000177000-memory.dmp

Filesize
92KB

Download
memory/2764-8-0x0000000001350000-0x0000000001367000-memory.dmp

Filesize
92KB

Download
memory/2764-18-0x0000000000160000-0x0000000000177000-memory.dmp

Filesize
92KB

Download
memory/2848-12-0x0000000000FE0000-0x0000000000FF7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads